diff --git a/.github/workflows/debian.yml b/.github/workflows/debian.yml
index 1b7e004f..6869e514 100644
--- a/.github/workflows/debian.yml
+++ b/.github/workflows/debian.yml
@@ -22,7 +22,7 @@ jobs:
       section: "default"
       priority: "optional"
       compile: "tools/config-assemble.sh -p"
-      depends: "bash, jq, whiptail, sudo, procps, systemd, lsb-release, iproute2, debconf, libtext-iconv-perl, gpg"
+      depends: "bash, jq, whiptail, sudo, procps, systemd, lsb-release, iproute2, debconf, libtext-iconv-perl, gpg, xz-utils, pv"
       description: "Armbian config: The Next Generation"
 
     secrets:
diff --git a/tools/include/images/FLASH1.png b/tools/include/images/FLASH1.png
new file mode 100644
index 00000000..a2989d07
Binary files /dev/null and b/tools/include/images/FLASH1.png differ
diff --git a/tools/include/markdown/FLASH1-footer.md b/tools/include/markdown/FLASH1-footer.md
new file mode 100644
index 00000000..e69de29b
diff --git a/tools/include/markdown/FLASH1-header.md b/tools/include/markdown/FLASH1-header.md
new file mode 100644
index 00000000..ba27c519
--- /dev/null
+++ b/tools/include/markdown/FLASH1-header.md
@@ -0,0 +1,7 @@
+What can this tool do?
+
+- Install Armbian onto internal **eMMC, SSD, or other storage**
+- Create **bootable SD cards or USB drives** for any supported board
+- Recover a system by **re-flashing a clean image**
+- Switch between different **OS variants, kernel branches, or preinstalled applications**
+- Accelerate development with **fast, repeatable deployments** for testing and automation
diff --git a/tools/include/markdown/STO001-header.md b/tools/include/markdown/STO001-header.md
index a10b29f2..a283850b 100644
--- a/tools/include/markdown/STO001-header.md
+++ b/tools/include/markdown/STO001-header.md
@@ -1 +1,5 @@
-This section provides an option to transfer the live running Armbian system from an SD card to internal storage devices such as eMMC, SATA, NVMe, or USB drives. It prepares the target storage, copies the active system, adjusts bootloader settings, and ensures the system can boot independently without requiring reinstallation.
+- Clones your current live OS installation
+- Keeps your settings, configuration, installed packages, and user data
+- Essentially “transfer my existing system to internal/external storage”
+
+Use this option to **transfer your current live Armbian system** to another storage device (eMMC, SSD, USB, etc.).  This copies your existing installation exactly as it is — including settings, installed packages, and user data.
diff --git a/tools/json/config.system.json b/tools/json/config.system.json
index e3efd6b7..faacac5f 100644
--- a/tools/json/config.system.json
+++ b/tools/json/config.system.json
@@ -91,7 +91,8 @@
                     "sub": [
                         {
                             "id": "STO001",
-                            "description": "Install",
+                            "description": "Copy the running Armbian system to another device",
+                            "short": "Install",
                             "module": "module_generic",
                             "command": [
                                 "armbian-install"
@@ -100,6 +101,30 @@
                             "author": "@igorpecovnik",
                             "condition": "[[ -f /sbin/armbian-install || -f /usr/bin/armbian-install ]]"
                         },
+                        {
+                            "id": "FLASH1",
+                            "description": "Download a fresh, official Armbian OS image and write it to a device",
+                            "short": "Download and flash",
+                            "module": "module_images",
+                            "command": [
+                                "module_images install"
+                            ],
+                            "status": "Preview",
+                            "author": "@igorpecovnik",
+                            "condition": "module_images status >/dev/null"
+                        },
+                        {
+                            "id": "FLASH2",
+                            "description": "Remove all downloaded Armbian images",
+                            "short": "Remove cached images",
+                            "module": "module_images",
+                            "command": [
+                                "module_images remove"
+                            ],
+                            "status": "Preview",
+                            "author": "@igorpecovnik",
+                            "condition": "module_images cache-status"
+                        },
                         {
                             "id": "ROO001",
                             "description": "Enable read only filesystem",
diff --git a/tools/modules/software/module_images.sh b/tools/modules/software/module_images.sh
new file mode 100644
index 00000000..2dbe1297
--- /dev/null
+++ b/tools/modules/software/module_images.sh
@@ -0,0 +1,1254 @@
+#
+# Module options: images
+#
+module_options+=(
+	["module_images,author"]=""
+	["module_images,maintainer"]="@igorpecovnik"
+	["module_images,feature"]="module_images"
+	["module_images,example"]="install remove purge status help"
+	["module_images,desc"]="Download and flash Armbian OS images for selected hardware"
+	["module_images,status"]="Active"
+	["module_images,doc_link"]=""
+	["module_images,group"]="Management"
+	["module_images,arch"]="x86-64 arm64 armhf"
+)
+
+#
+# Module images
+#
+function module_images () {
+	local title="images"
+	local condition="ok"  # dummy, kept for consistency with other modules
+
+	local commands
+	IFS=' ' read -r -a commands <<< "${module_options["module_images,example"]}"
+
+	local ALL_IMAGES_JSON_URL="https://github.armbian.com/all-images.json"
+	local IMAGES_BASE="${SOFTWARE_FOLDER}/images"
+	local IMAGES_JSON_PATH="${IMAGES_BASE}/all-images.json"
+
+	# $1 = command, $2 = board_slug override (optional)
+	local CMD="$1"
+	local BOARD_SLUG="${2:-${BOARD:-}}"
+
+	# filters (set during install flow)
+	PREAPP_FILTER=""
+	DOWNLOAD_REPO_FILTER=""   # e.g. "archive" when STABLE is selected
+	KERNEL_FILTER=""
+	VARIANT_FILTER=""
+
+	# Ensure base directory exists
+	[[ -d "$IMAGES_BASE" ]] || mkdir -p "$IMAGES_BASE" || { echo "Couldn't create storage directory: $IMAGES_BASE"; return 1; }
+
+	# Helper: ensure dependencies
+	local -a DEPS=("curl" "jq")
+	for dep in "${DEPS[@]}"; do
+		if ! command -v "$dep" >/dev/null 2>&1; then
+			pkg_install "$dep"
+		fi
+	done
+
+	# Helper: ensure BOARD_SLUG is set, otherwise ask
+	ensure_board_slug() {
+		if [[ -z "$BOARD_SLUG" ]]; then
+			if [[ -n "$DIALOG" ]]; then
+				BOARD_SLUG=$($DIALOG --title "Board slug" --inputbox "Enter board slug (e.g. bananapi):" 8 50 3>&1 1>&2 2>&3)
+				[[ -z "$BOARD_SLUG" ]] && { echo "Board slug not provided."; return 1; }
+			else
+				read -rp "Enter board slug (e.g. bananapi): " BOARD_SLUG
+				[[ -z "$BOARD_SLUG" ]] && { echo "Board slug not provided."; return 1; }
+			fi
+		fi
+		return 0
+	}
+
+	# Helper: fetch/refresh JSON (simple cache, max age 1 day)
+	refresh_images_json() {
+		local max_age=$((24*60*60))  # 1 day
+		local now epoch
+
+		now=$(date +%s)
+
+		if [[ -f "$IMAGES_JSON_PATH" ]]; then
+			epoch=$(stat -c %Y "$IMAGES_JSON_PATH" 2>/dev/null || echo 0)
+		else
+			epoch=0
+		fi
+
+		if (( now - epoch > max_age )) || [[ ! -s "$IMAGES_JSON_PATH" ]]; then
+			if [[ -n "$DIALOG" ]]; then
+				$DIALOG --infobox "Refreshing Armbian images index...\n\n$ALL_IMAGES_JSON_URL" 8 70
+			else
+				echo "Refreshing Armbian images index from $ALL_IMAGES_JSON_URL ..."
+			fi
+
+			if ! curl -fsSL "$ALL_IMAGES_JSON_URL" -o "$IMAGES_JSON_PATH"; then
+				echo "Failed to download $ALL_IMAGES_JSON_URL"
+				return 1
+			fi
+		fi
+		return 0
+	}
+
+	# Helper: let user pick a board_slug from the index (unique list)
+	# Only consider records with real flashable images (file_extension NOT .asc/.torrent/.sha*)
+	choose_board_slug_from_index() {
+		local -a options=()
+		local temp_list slug
+
+		temp_list=$(jq -r '
+			[
+			.. | objects
+			| select(.board_slug? != null)
+			| select((.file_extension? // "") | test("\\.(asc|torrent|sha)"; "i") | not)
+			| .board_slug
+			]
+			| unique
+			| sort
+			| to_entries[]
+			| "\(.key)|\(.value)"
+		' "$IMAGES_JSON_PATH" 2>/dev/null)
+
+		if [[ -z "$temp_list" ]]; then
+			echo "No boards found in images index."
+			return 1
+		fi
+
+		while IFS='|' read -r idx slug; do
+			[[ -z "$idx" ]] && continue
+			options+=("$idx" "$slug")
+		done <<< "$temp_list"
+
+		local selected_idx
+
+		if [[ -n "$DIALOG" ]]; then
+			selected_idx=$($DIALOG --title "Select board" \
+				--menu "\nNo images found for the current board.\n\nSelect a different board to flash:" 24 76 12 \
+				"${options[@]}" \
+				3>&1 1>&2 2>&3)
+		else
+			echo "Boards available in index:"
+			local i=0
+			while [[ $i -lt ${#options[@]} ]]; do
+				echo "  ${options[$i]}: ${options[$((i+1))]}"
+				((i+=2))
+			done
+			read -rp "Enter board index: " selected_idx
+		fi
+
+		[[ -z "$selected_idx" ]] && return 1
+
+		BOARD_SLUG=$(jq -r --argjson i "$selected_idx" '
+			[
+			.. | objects
+			| select(.board_slug? != null)
+			| select((.file_extension? // "") | test("\\.(asc|torrent|sha)"; "i") | not)
+			| .board_slug
+			]
+			| unique
+			| sort
+			| .[$i]
+		' "$IMAGES_JSON_PATH")
+
+		[[ -z "$BOARD_SLUG" || "$BOARD_SLUG" == "null" ]] && return 1
+
+		return 0
+	}
+
+	# Helper: confirm current BOARD_SLUG or choose another from index
+	confirm_board_or_choose_other() {
+		# If we don't have a board yet, nothing to confirm
+		if [[ -z "$BOARD_SLUG" ]]; then
+			return 0
+		fi
+
+		if [[ -n "$DIALOG" ]]; then
+			local choice
+			choice=$($DIALOG --title "Confirm board" \
+				--menu "\nDetected board: ${BOARD_SLUG}\n\nWhat would you like to do?" 15 76 3 \
+				"CURRENT" "Use this board" \
+				"OTHER"   "Choose another board from images index" \
+				3>&1 1>&2 2>&3)
+
+			[[ -z "$choice" ]] && return 1
+
+			case "$choice" in
+				CURRENT)
+					# keep BOARD_SLUG as-is
+					return 0
+					;;
+				OTHER)
+					# use JSON index and let user pick any board
+					choose_board_slug_from_index || return 1
+					return 0
+					;;
+			esac
+		else
+			echo "Current board slug: $BOARD_SLUG"
+			echo "  1) Use this board"
+			echo "  2) Choose another board from images index"
+			echo "  3) Cancel"
+			local ans
+			read -rp "Select [1-3]: " ans
+			case "$ans" in
+				1|"")
+					return 0
+					;;
+				2)
+					choose_board_slug_from_index || return 1
+					return 0
+					;;
+				*)
+					return 1
+					;;
+			esac
+		fi
+	}
+
+	# Helper: select preinstalled_application filter for board
+	# PREAPP_FILTER:
+	#   ""           -> all
+	#   "__EMPTY__"  -> barebone (preinstalled_application == "")
+	#   other        -> that exact preinstalled_application
+	select_preapp_for_board() {
+		local board="$1"
+		local -a options=()
+		local temp_list app
+		local has_barebone=0
+		local apps_list=""
+
+		temp_list=$(jq -r --arg board "$board" '
+			def norm(s): (s | ascii_downcase | gsub("[^a-z0-9]+"; "-"));
+			[
+			.. | objects
+			| select(.board_slug? != null)
+			| select((.file_extension? // "") | test("^img(\\.(xz|gz|zst|bz2|lz4))?$"; "i"))
+			| select(.kernel_branch != "cloud")
+			| select(norm(.board_slug) == norm($board))
+			| .preinstalled_application // ""
+			]
+			| unique
+			| sort
+			| to_entries[]
+			| "\(.key)|\(.value)"
+		' "$IMAGES_JSON_PATH" 2>/dev/null)
+
+		if [[ -z "$temp_list" ]]; then
+			PREAPP_FILTER=""
+			DOWNLOAD_REPO_FILTER=""
+			return 0
+		fi
+
+		# Split into barebone flag + list of named apps
+		while IFS='|' read -r _ app; do
+			if [[ -z "$app" ]]; then
+				has_barebone=1
+			else
+				apps_list+="${app}"$'\n'
+			fi
+		done <<< "$temp_list"
+
+		# Build clean options list
+		options=()
+		options+=("ALL"    "All images (barebone + preinstalled)")
+		options+=("STABLE" "Stable images only")
+
+		if [[ $has_barebone -eq 1 ]]; then
+			options+=("BAREBONE" "Barebone images only (no preinstalled apps)")
+		fi
+
+		while IFS= read -r app; do
+			[[ -z "$app" ]] && continue
+			local desc
+			case "$app" in
+				homeassistant)
+					desc="Home Assistant smart home suite"
+				;;
+				kali)
+					desc="Preinstalled security applications from Kali repository"
+				;;
+				omv|OMV)
+					desc="Openmediavault NAS appliance"
+				;;
+				openhab|OpenHAB|openHAB)
+					desc="Empowering the smart home"
+				;;
+				*)
+					desc="$app"
+				;;
+			esac
+			options+=("$app" "$desc")
+		done <<< "$apps_list"
+
+		local selected
+
+		if [[ -n "$DIALOG" ]]; then
+			selected=$($DIALOG --title "Prebuild images" \
+				--menu "\nSelect image type: stable, barebone, or with preinstalled apps." 22 76 12 \
+				"${options[@]}" \
+				--default-item STABLE \
+				3>&1 1>&2 2>&3)
+		else
+			echo "Available application filters for $board:"
+			local i=0
+			while [[ $i -lt ${#options[@]} ]]; do
+				echo "  ${options[$i]}: ${options[$((i+1))]}"
+				((i+=2))
+			done
+			read -rp "Enter filter (ALL/STABLE/BAREBONE or app name, empty=ALL): " selected
+		fi
+		local dlg_exit=$?
+		if [[ $dlg_exit -ne 0 ]]; then
+			return 1
+		fi
+
+		if [[ -z "$selected" || "$selected" == "ALL" ]]; then
+			PREAPP_FILTER=""
+			DOWNLOAD_REPO_FILTER=""
+		elif [[ "$selected" == "STABLE" ]]; then
+			# Only stable images: download_repository == "archive"
+			PREAPP_FILTER=""
+			DOWNLOAD_REPO_FILTER="archive"
+		elif [[ "$selected" == "BAREBONE" ]]; then
+			PREAPP_FILTER="__EMPTY__"
+			DOWNLOAD_REPO_FILTER=""
+		else
+			PREAPP_FILTER="$selected"
+			DOWNLOAD_REPO_FILTER=""
+		fi
+
+		return 0
+	}
+
+	# Helper: select kernel_branch filter for board
+	select_kernel_branch_for_board() {
+		local board="$1"
+		local -a options=()
+		local temp_list kbranch
+
+		temp_list=$(jq -r --arg board "$board" --arg preapp "$PREAPP_FILTER" --arg repo "$DOWNLOAD_REPO_FILTER" '
+			def norm(s): (s | ascii_downcase | gsub("[^a-z0-9]+"; "-"));
+			def preapp_filter:
+			if   $preapp == ""          then .
+			elif $preapp == "__EMPTY__" then select((.preinstalled_application // "") == "")
+			else select(.preinstalled_application == $preapp)
+			end;
+			def repo_filter:
+			if $repo == "" then .
+			else select(.download_repository == $repo)
+			end;
+			[
+			.. | objects
+			| select(.board_slug? != null)
+			| select((.file_extension? // "") | test("^img(\\.(xz|gz|zst|bz2|lz4))?$"; "i"))
+			| select(.kernel_branch != "cloud")
+			| select(norm(.board_slug) == norm($board))
+			| preapp_filter
+			| repo_filter
+			| .kernel_branch // "unknown"
+			]
+			| unique
+			| sort
+			| to_entries[]
+			| "\(.key)|\(.value)"
+		' "$IMAGES_JSON_PATH" 2>/dev/null)
+
+		if [[ -z "$temp_list" ]]; then
+			# No kernel information – just keep filter empty (all)
+			KERNEL_FILTER=""
+			return 0
+		fi
+
+		# "All" option
+		options+=("ALL" "All kernel branches")
+		while IFS='|' read -r _ kbranch; do
+			[[ -z "$kbranch" ]] && continue
+			options+=("$kbranch" "$kbranch")
+		done <<< "$temp_list"
+
+		local selected
+
+		if [[ -n "$DIALOG" ]]; then
+			selected=$($DIALOG --title "Kernel branch" \
+				--menu "\nSelect kernel branch to filter images (or choose All):" 14 70 4 \
+				"${options[@]}" \
+				3>&1 1>&2 2>&3)
+		else
+			echo "Available kernel branches for $board (preinstalled=${PREAPP_FILTER:-ALL}, repo=${DOWNLOAD_REPO_FILTER:-all}):"
+			echo "  ALL  - All kernel branches"
+			while IFS='|' read -r _ kbranch; do
+				[[ -z "$kbranch" ]] && continue
+				echo "  $kbranch"
+			done <<< "$temp_list"
+			read -rp "Enter kernel branch to filter (empty/ALL for all): " selected
+		fi
+
+		local dlg_exit=$?
+		if [[ $dlg_exit -ne 0 ]]; then
+			return 1
+		fi
+
+		if [[ -z "$selected" || "$selected" == "ALL" ]]; then
+			KERNEL_FILTER=""
+		else
+			KERNEL_FILTER="$selected"
+		fi
+
+		return 0
+	}
+
+	# Helper: select image_variant filter for board + kernel + preapp
+	select_image_variant_for_board() {
+		local board="$1"
+		local -a options=()
+		local temp_list variant
+
+		temp_list=$(jq -r --arg board "$board" --arg kbranch "$KERNEL_FILTER" --arg preapp "$PREAPP_FILTER" --arg repo "$DOWNLOAD_REPO_FILTER" '
+			def norm(s): (s | ascii_downcase | gsub("[^a-z0-9]+"; "-"));
+			def preapp_filter:
+			if   $preapp == ""          then .
+			elif $preapp == "__EMPTY__" then select((.preinstalled_application // "") == "")
+			else select(.preinstalled_application == $preapp)
+			end;
+			def repo_filter:
+			if $repo == "" then .
+			else select(.download_repository == $repo)
+			end;
+			[
+			.. | objects
+			| select(.board_slug? != null)
+			| select((.file_extension? // "") | test("^img(\\.(xz|gz|zst|bz2|lz4))?$"; "i"))
+			| select(.kernel_branch != "cloud")
+			| select(norm(.board_slug) == norm($board))
+			| preapp_filter
+			| repo_filter
+			| (if $kbranch != "" then select(.kernel_branch == $kbranch) else . end)
+			| .image_variant // "unknown"
+			]
+			| unique
+			| sort
+			| to_entries[]
+			| "\(.key)|\(.value)"
+		' "$IMAGES_JSON_PATH" 2>/dev/null)
+
+		if [[ -z "$temp_list" ]]; then
+			VARIANT_FILTER=""
+			return 0
+		fi
+
+		options+=("ALL" "All image variants")
+		while IFS='|' read -r _ variant; do
+			[[ -z "$variant" ]] && continue
+			options+=("$variant" "$variant")
+		done <<< "$temp_list"
+
+		local selected
+
+		if [[ -n "$DIALOG" ]]; then
+			selected=$($DIALOG --title "Image variant" \
+				--menu "\nSelect image variant to filter (or choose All):" 15 70 5 \
+				"${options[@]}" \
+				3>&1 1>&2 2>&3)
+		else
+			echo "Available variants for $board (preinstalled=${PREAPP_FILTER:-ALL}, kernel=${KERNEL_FILTER:-all}, repo=${DOWNLOAD_REPO_FILTER:-all}):"
+			echo "  ALL  - All variants"
+			while IFS='|' read -r _ variant; do
+				[[ -z "$variant" ]] && continue
+				echo "  $variant"
+			done <<< "$temp_list"
+			read -rp "Enter image variant to filter (empty/ALL for all): " selected
+		fi
+
+		local dlg_exit=$?
+		if [[ $dlg_exit -ne 0 ]]; then
+			return 1
+		fi
+
+		if [[ -z "$selected" || "$selected" == "ALL" ]]; then
+			VARIANT_FILTER=""
+		else
+			VARIANT_FILTER="$selected"
+		fi
+
+		return 0
+	}
+
+	# Helper: select image via menu (uses BOARD_SLUG + filters)
+	select_image_for_board() {
+		local board
+		board="$1"
+
+		while true; do
+			local temp_list
+			local -a options=()
+			local idx desc
+
+			temp_list=$(jq -r --arg board "$board" --arg kbranch "$KERNEL_FILTER" --arg variant "$VARIANT_FILTER" --arg preapp "$PREAPP_FILTER" --arg repo "$DOWNLOAD_REPO_FILTER" '
+				def norm(s): (s | ascii_downcase | gsub("[^a-z0-9]+"; "-"));
+				def preapp_filter:
+					if   $preapp == ""          then .
+					elif $preapp == "__EMPTY__" then select((.preinstalled_application // "") == "")
+					else select(.preinstalled_application == $preapp)
+					end;
+				def repo_filter:
+					if $repo == "" then .
+					else select(.download_repository == $repo)
+					end;
+
+				def spaces(n): reduce range(0;n) as $i (""; . + " ");
+				def pad(s; n):
+					(s // "") as $s |
+					($s | length) as $l |
+					if $l >= n then $s else $s + spaces(n - $l) end;
+				def pad_right(s; n):
+					(s // "") as $s |
+					($s | length) as $l |
+					if $l >= n then $s else spaces(n - $l) + $s end;
+				def size_mb(x):
+					(
+						(x.file_size // "0" | try tonumber // 0)
+						/ (1024*1024)
+						| if . < 1 then 1 else floor end
+						| tostring + " MB"
+					);
+				def show_ver(v):
+					(v // "") as $v |
+					if ($v | test("-trunk\\.[0-9]+$")) then
+						# Example: 26.2.0-trunk.33 -> T-33
+						"DEV." + ($v | capture("trunk\\.(?<n>[0-9]+)$").n)
+					else
+						$v
+					end;
+
+				[
+				.. | objects
+				| select(.board_slug? != null)
+				| select((.file_extension? // "") | test("^img(\\.(xz|gz|zst|bz2|lz4))?$"; "i"))
+				| select(.kernel_branch != "cloud")
+				| select(norm(.board_slug) == norm($board))
+				| preapp_filter
+				| repo_filter
+				| (if $kbranch != "" then select(.kernel_branch == $kbranch) else . end)
+				| (if $variant != "" then select(.image_variant == $variant) else . end)
+				]
+				| sort_by([ (if .promoted=="true" then 0 else 1 end), .armbian_version ])
+				| to_entries[]
+				| (
+					(.key|tostring) + "|" +
+					(if .value.promoted=="true" then "\u2605 " else "  " end) +
+					pad(show_ver(.value.armbian_version); 10) + " " +
+					pad(.value.distro_release // ""; 9) + " " +
+					pad(.value.kernel_branch // ""; 10) + " " +
+					pad(.value.image_variant // ""; 12) + " " +
+					pad_right(size_mb(.value); 7) + " " +
+					pad_right((.value.preinstalled_application // ""); 15)
+				)
+			' "$IMAGES_JSON_PATH" 2>/dev/null)
+
+
+			if [[ -z "$temp_list" ]]; then
+				# No images even after filters – offer to adjust filters
+				if [[ -n "$DIALOG" ]]; then
+					if $DIALOG --yesno "No images found for:\n\n  board:   $board\n  preapp:  ${PREAPP_FILTER:-ALL}\n  repo:    ${DOWNLOAD_REPO_FILTER:-all}\n  kernel:  ${KERNEL_FILTER:-all}\n  variant: ${VARIANT_FILTER:-all}\n\nWould you like to adjust filters?" 17 72; then
+						select_preapp_for_board         "$board" || return 1
+						select_kernel_branch_for_board  "$board" || return 1
+						select_image_variant_for_board  "$board" || return 1
+						continue
+					else
+						echo "No images found for the selected filters."
+						return 1
+					fi
+				else
+					echo "No images found for board=$board, preapp=${PREAPP_FILTER:-ALL}, repo=${DOWNLOAD_REPO_FILTER:-all}, kernel=${KERNEL_FILTER:-all}, variant=${VARIANT_FILTER:-all}."
+					read -rp "Adjust filters? [y/N]: " ans
+					if [[ "$ans" =~ ^[Yy]$ ]]; then
+						select_preapp_for_board         "$board" || return 1
+						select_kernel_branch_for_board  "$board" || return 1
+						select_image_variant_for_board  "$board" || return 1
+						continue
+					fi
+					return 1
+				fi
+				local dlg_exit=$?
+				if [[ $dlg_exit -ne 0 ]]; then
+					return 1
+				fi
+			fi
+
+			while IFS='|' read -r idx desc; do
+				[[ -z "$idx" ]] && continue
+				options+=("$idx" "$desc")
+			done <<< "$temp_list"
+
+			local selected_index
+
+			if [[ -n "$DIALOG" ]]; then
+				selected_index=$($DIALOG --title "Select Armbian image" \
+					--menu "\nBoard: $board\nPreinstalled: ${PREAPP_FILTER:-ALL}\nRepo: ${DOWNLOAD_REPO_FILTER:-all}\nKernel: ${KERNEL_FILTER:-all}\nVariant: ${VARIANT_FILTER:-all}\n★ = promoted image\n\n  #   version    release   kernel     variant    size (MB)  [preinstalled]" 26 80 8 \
+					"${options[@]}" \
+					3>&1 1>&2 2>&3)
+			else
+				echo "Available images for $board (preapp=${PREAPP_FILTER:-ALL}, repo=${DOWNLOAD_REPO_FILTER:-all}, kernel=${KERNEL_FILTER:-all}, variant=${VARIANT_FILTER:-all}; ★ = promoted):"
+				local i=0
+				while [[ $i -lt ${#options[@]} ]]; do
+					echo "  ${options[$i]}: ${options[$((i+1))]}"
+					((i+=2))
+				done
+				read -rp "Enter index to flash: " selected_index
+			fi
+
+			[[ -z "$selected_index" ]] && return 1
+
+			# Return the selected JSON object via global variable
+			IMAGE_JSON=$(jq -c --arg board "$board" --arg kbranch "$KERNEL_FILTER" --arg variant "$VARIANT_FILTER" --arg preapp "$PREAPP_FILTER" --arg repo "$DOWNLOAD_REPO_FILTER" --argjson idx "$selected_index" '
+				def norm(s): (s | ascii_downcase | gsub("[^a-z0-9]+"; "-"));
+				def preapp_filter:
+				if   $preapp == ""          then .
+				elif $preapp == "__EMPTY__" then select((.preinstalled_application // "") == "")
+				else select(.preinstalled_application == $preapp)
+				end;
+				def repo_filter:
+				if $repo == "" then .
+				else select(.download_repository == $repo)
+				end;
+				[
+				.. | objects
+				| select(.board_slug? != null)
+				| select((.file_extension? // "") | test("^img(\\.(xz|gz|zst|bz2|lz4))?$"; "i"))
+				| select(.kernel_branch != "cloud")
+				| select(norm(.board_slug) == norm($board))
+				| preapp_filter
+				| repo_filter
+				| (if $kbranch != "" then select(.kernel_branch == $kbranch) else . end)
+				| (if $variant != "" then select(.image_variant == $variant) else . end)
+				]
+				| sort_by([ (if .promoted=="true" then 0 else 1 end), .armbian_version ])
+				| .[$idx]
+			' "$IMAGES_JSON_PATH")
+
+			if [[ -z "$IMAGE_JSON" || "$IMAGE_JSON" == "null" ]]; then
+				echo "Failed to obtain image metadata."
+				return 1
+			fi
+
+			# Update BOARD_SLUG to the final chosen board
+			BOARD_SLUG="$board"
+			return 0
+		done
+	}
+
+	# Helper: select target block device
+	select_block_device() {
+		local -a dev_options=()
+		local raw_devices
+		local line dev size model bytes
+
+		# Find devices backing /, /boot, /boot/efi
+		local rootdev bootdev bootefidev
+		local rootdisk="" bootdisk="" bootefidisk=""
+
+		rootdev=$(findmnt -n -o SOURCE / 2>/dev/null || echo "")
+		bootdev=$(findmnt -n -o SOURCE /boot 2>/dev/null || echo "")
+		bootefidev=$(findmnt -n -o SOURCE /boot/efi 2>/dev/null || echo "")
+
+		# Resolve to parent disks (PKNAME) where possible
+		if [[ -n "$rootdev" ]]; then
+			local rd
+			rd=$(lsblk -no PKNAME "$rootdev" 2>/dev/null || true)
+			if [[ -n "$rd" ]]; then
+				rootdisk="/dev/$rd"
+			else
+				# fallback: maybe / itself is a whole disk (e.g. /dev/mmcblk0)
+				rootdisk="$rootdev"
+			fi
+		fi
+
+		if [[ -n "$bootdev" ]]; then
+			local bd
+			bd=$(lsblk -no PKNAME "$bootdev" 2>/dev/null || true)
+			if [[ -n "$bd" ]]; then
+				bootdisk="/dev/$bd"
+			else
+				bootdisk="$bootdev"
+			fi
+		fi
+
+		if [[ -n "$bootefidev" ]]; then
+			local ed
+			ed=$(lsblk -no PKNAME "$bootefidev" 2>/dev/null || true)
+			if [[ -n "$ed" ]]; then
+				bootefidisk="/dev/$ed"
+			else
+				bootefidisk="$bootefidev"
+			fi
+		fi
+
+		# List candidate block devices
+		raw_devices=$(lsblk -dpno NAME,SIZE,MODEL | grep -E '/dev/(sd|hd|vd|nvme|mmcblk)' || true)
+
+		if [[ -z "$raw_devices" ]]; then
+			echo "No suitable block devices found."
+			return 1
+		fi
+
+		while IFS= read -r line; do
+			dev=$(awk '{print $1}' <<< "$line")
+			size=$(awk '{print $2}' <<< "$line")
+			model=${line#"$dev $size "}
+			[[ -z "$model" || "$model" == "$size" ]] && model=""
+
+			# Skip eMMC boot / RPMB pseudo-devices like /dev/mmcblk1boot0, /dev/mmcblk1boot1, /dev/mmcblk1rpmb
+			if [[ "$dev" =~ mmcblk[0-9]+boot[0-9]+$ || "$dev" =~ mmcblk[0-9]+rpmb$ ]]; then
+				continue
+			fi
+
+			# Skip zero-size or invalid devices
+			bytes=$(lsblk -bdno SIZE "$dev" 2>/dev/null || echo 0)
+			if [[ -z "$bytes" ]]; then
+				bytes=0
+			fi
+			if (( bytes <= 0 )); then
+				continue
+			fi
+
+			# Skip any disk that contains the root or boot partitions
+			if [[ -n "$rootdisk" && "$dev" == "$rootdisk" ]]; then
+				continue
+			fi
+			if [[ -n "$bootdisk" && "$dev" == "$bootdisk" ]]; then
+				continue
+			fi
+			if [[ -n "$bootefidisk" && "$dev" == "$bootefidisk" ]]; then
+				continue
+			fi
+
+			dev_options+=("$dev" "$size ${model}")
+		done <<< "$raw_devices"
+
+		if [[ ${#dev_options[@]} -eq 0 ]]; then
+			if [[ -n "$DIALOG" ]]; then
+					"$DIALOG" --title "Error" --msgbox "No flashable block devices were found.\n\n(System disks are excluded automatically.)" 10 70
+			else
+					echo "No flashable block devices (excluding system disks) found."
+			fi
+			return 1
+		fi
+
+		local target
+
+		if [[ -n "$DIALOG" ]]; then
+			target=$($DIALOG --title "Select target device" \
+				--menu "\nSelect block device to flash.\n\n⚠  ALL DATA ON THE SELECTED DEVICE WILL BE LOST!" 15 76 3 \
+				"${dev_options[@]}" \
+				3>&1 1>&2 2>&3)
+		else
+			echo "Available block devices (ALL DATA WILL BE LOST):"
+			local i=0
+			while [[ $i -lt ${#dev_options[@]} ]]; do
+				echo "  ${dev_options[$i]}: ${dev_options[$((i+1))]}"
+				((i+=2))
+			done
+			read -rp "Enter device to flash (e.g. /dev/sdb): " target
+		fi
+
+		[[ -z "$target" ]] && return 1
+
+		TARGET_DEVICE="$target"
+		return 0
+	}
+
+	# Helper: confirmation dialog
+	confirm_destroy_device() {
+		local dev="$1"
+		local msg="WARNING!\n\nYou are about to write a disk image to:\n\n  ${dev}\n\nAll existing data on this device will be irreversibly destroyed.\n\nDo you want to continue?"
+
+		if [[ -n "$DIALOG" ]]; then
+			if ! $DIALOG --title "Final confirmation" --yesno "$msg" 15 72; then
+				return 1
+			fi
+		else
+			echo -e "$msg"
+			read -rp "Type YES to continue: " answer
+			[[ "$answer" != "YES" ]] && return 1
+		fi
+		return 0
+	}
+
+	# Helper: download image file
+	# Download is always done using file_url (full path)
+	# redi_url is only shown to the user as a clean short link
+	download_image_file() {
+		local file_url redi_url file_ext image_url filename dirname raw_filename
+
+		# Always download using file_url
+		file_url=$(jq -r '.file_url' <<< "$IMAGE_JSON")
+		redi_url=$(jq -r '.redi_url // ""' <<< "$IMAGE_JSON")
+		file_ext=$(jq -r '.file_extension // ""' <<< "$IMAGE_JSON")
+
+		# Determine real downloadable URL (must be file_url)
+		case "$file_url" in
+			*.img.xz)  image_url="$file_url" ;;
+			*.asc|*.torrent|*.sha*) image_url="${file_url%.*}" ;;
+			*) image_url="$file_url" ;;
+		esac
+
+		filename=$(basename "$image_url")
+		raw_filename="${filename%.xz}"
+
+		LOCAL_IMAGE_PATH="${IMAGES_BASE}/${raw_filename}"
+
+		# If already present, ask reuse
+		if [[ -f "$LOCAL_IMAGE_PATH" ]]; then
+			if [[ -n "$DIALOG" ]]; then
+				$DIALOG --title "Note" --yesno \
+					"\nUncompressed image already exists in ${IMAGES_BASE}/:\n\n${raw_filename}\n\nReuse this file?" \
+					12 70 && return 0
+			else
+				read -rp "Image $LOCAL_IMAGE_PATH exists. Reuse? [y/N]: " reuse
+				[[ "$reuse" =~ ^[Yy]$ ]] && return 0
+			fi
+			rm -f "$LOCAL_IMAGE_PATH"
+		fi
+
+		# File size for pv gauge
+		local content_length
+		content_length=$(jq -r '(.file_size // "0")' <<< "$IMAGE_JSON")
+		[[ -z "$content_length" ]] && content_length=0
+
+		# -------------------------
+		# Download + decompress
+		# -------------------------
+		local display_url="$redi_url"
+		[[ -z "$display_url" ]] && display_url="$image_url"
+
+		local rc=0
+
+		if command -v pv >/dev/null 2>&1 && [[ -n "$DIALOG" ]] && (( content_length > 0 )); then
+			local gauge_dir
+			gauge_dir=$(mktemp -d) || { echo "Failed to create temp dir"; return 1; }
+			local gauge_fifo="${gauge_dir}/fifo"
+			mkfifo "$gauge_fifo" || { rm -rf "$gauge_dir"; return 1; }
+
+			$DIALOG --title "Armbian imager" \
+				--gauge "\nDownloading and decompressing Armbian image...\n\n$display_url" \
+				10 70 0 < "$gauge_fifo" &
+			local gauge_pid=$!
+
+			{
+				curl -fSL "$image_url" 2>/dev/null \
+					| pv -n -s "$content_length" 2> "$gauge_fifo" \
+					| xz -T0 -dc \
+					> "$LOCAL_IMAGE_PATH"
+			} || rc=$?
+
+			rm -f "$gauge_fifo"
+			rmdir "$gauge_dir" 2>/dev/null || true
+			wait "$gauge_pid" 2>/dev/null || true
+
+			(( rc != 0 )) && {
+				echo "Failed to download or decompress image: $image_url"
+				rm -f "$LOCAL_IMAGE_PATH"
+				return 1
+			}
+
+		else
+			# Fallback simple mode
+			if [[ -n "$DIALOG" ]]; then
+				$DIALOG --infobox \
+					"\nDownloading and decompressing Armbian image...\n\n$display_url" \
+					8 70
+			else
+				echo "Downloading and decompressing: $display_url"
+			fi
+
+			curl -fSL "$image_url" \
+				| xz -T0 -dc \
+				> "$LOCAL_IMAGE_PATH" || {
+					echo "Failed to download or decompress: $image_url"
+					rm -f "$LOCAL_IMAGE_PATH"
+					return 1
+				}
+		fi
+
+		return 0
+	}
+
+	# Helper: flash image with dd + pv + whiptail gauge + verification
+	flash_image_to_device() {
+		local img="$LOCAL_IMAGE_PATH"
+		local dev="$TARGET_DEVICE"
+
+		if [[ ! -b "$dev" ]]; then
+			echo "Target device $dev is not a block device."
+			return 1
+		fi
+
+		if [[ ! -f "$img" ]]; then
+			echo "Image file not found: $img"
+			return 1
+		fi
+
+		# Get uncompressed image size for proper progress and verification
+		local img_size_bytes
+		img_size_bytes=$(stat -c '%s' "$img" 2>/dev/null || echo 0)
+
+		if ! [[ "$img_size_bytes" =~ ^[0-9]+$ ]] || (( img_size_bytes <= 0 )); then
+			echo "Unable to determine image size for $img"
+			return 1
+		fi
+
+		sync
+
+		# ------------------------------------------------------------
+		# FLASH PHASE (with gauge if pv + $DIALOG available)
+		# ------------------------------------------------------------
+		if command -v pv >/dev/null 2>&1 && [[ -n "$DIALOG" ]]; then
+			local gauge_dir
+			gauge_dir=$(mktemp -d) || { echo "Failed to create temp dir"; return 1; }
+			local gauge_fifo="${gauge_dir}/fifo"
+			mkfifo "$gauge_fifo" || { rm -rf "$gauge_dir"; return 1; }
+
+			# Reader: takes percentages from FIFO and feeds whiptail
+			{
+				while read -r line; do
+					echo "$line"
+				done < "$gauge_fifo"
+			} | "$DIALOG" --title "Armbian imager" \
+				--gauge "\nWriting image to $dev...\n\nPlease wait, this may take a while." 10 70 0 &
+			local gauge_pid=$!
+
+			# pv reads the image file, dd writes to device; pv stderr → FIFO (0..100)
+			{
+				pv -n -s "$img_size_bytes" "$img" \
+					| dd of="$dev" bs=4M conv=fsync,noerror status=none
+			} 2> "$gauge_fifo"
+
+			# Close FIFO and wait for whiptail to exit
+			rm -f "$gauge_fifo"
+			rmdir "$gauge_dir" 2>/dev/null || true
+			wait "$gauge_pid" 2>/dev/null || true
+		else
+			# Fallback: console progress
+			if [[ -n "$DIALOG" ]]; then
+				"$DIALOG" --title "Armbian imager" \
+					--infobox "\nWriting image to $dev...\n\nProgress is shown in the console." 8 70
+			else
+				echo "Writing image to $dev ..."
+			fi
+
+			if command -v pv >/dev/null 2>&1; then
+				pv -s "$img_size_bytes" "$img" \
+					| dd of="$dev" bs=4M conv=fsync,noerror status=none
+			else
+				dd if="$img" of="$dev" bs=4M conv=fsync,noerror status=progress
+			fi
+		fi
+
+		sync
+
+		# ------------------------------------------------------------
+		# VERIFY PHASE (compare img vs device, with optional gauge)
+		# ------------------------------------------------------------
+		local verify_result=2   # 1 = OK, 0 = FAILED, 2 = SKIPPED
+
+		if command -v cmp >/dev/null 2>&1; then
+			local block_size=$((4*1024*1024))
+			local blocks=$(( (img_size_bytes + block_size - 1) / block_size ))
+
+			if command -v pv >/dev/null 2>&1 && [[ -n "$DIALOG" ]]; then
+				# Gauge for verification
+				local gauge_dir
+				gauge_dir=$(mktemp -d) || { echo "Failed to create temp dir"; return 1; }
+				local gauge_fifo="${gauge_dir}/fifo"
+				mkfifo "$gauge_fifo" || { rm -rf "$gauge_dir"; return 1; }
+				{
+					while read -r line; do
+						echo "$line"
+					done < "$gauge_fifo"
+				} | "$DIALOG" --title "Armbian imager" \
+					--gauge "\nVerifying written image on $dev...\n\nPlease wait." 10 70 0 &
+				local v_pid=$!
+
+				# dd reads from device, pv tracks progress, cmp compares against img
+				verify_result=1
+				{
+					dd if="$dev" bs=$block_size count=$blocks status=none \
+						| pv -n -s "$img_size_bytes" 2> "$gauge_fifo" \
+						| cmp -n "$img_size_bytes" "$img" - >/dev/null
+				} || verify_result=0
+
+				rm -f "$gauge_fifo"
+				rmdir "$gauge_dir" 2>/dev/null || true
+				wait "$v_pid" 2>/dev/null || true
+			else
+				# No gauge, but still verify
+				echo "Verifying written image..."
+				if cmp -n "$img_size_bytes" \
+					"$img" \
+					<(dd if="$dev" bs=$block_size count=$blocks status=none) \
+					>/dev/null 2>&1; then
+					verify_result=1
+				else
+					verify_result=0
+				fi
+			fi
+		fi
+
+		sync
+
+		# ------------------------------------------------------------
+		# FINAL REPORT
+		# ------------------------------------------------------------
+		if [[ -n "$DIALOG" ]]; then
+			case "$verify_result" in
+				1)
+					# Success: offer actions
+					local action
+					action=$("$DIALOG" --title "Armbian imager" \
+						--menu "\nFlashing and verification completed successfully.\n\nChoose what to do next:" 14 72 3 \
+							"REBOOT"   "Reboot system now" \
+							"SHUTDOWN" "Power off the system" \
+							"EXIT"     "Return to shell/menu" \
+							3>&1 1>&2 2>&3)
+
+					case "$action" in
+						REBOOT)
+							sync
+							reboot
+							;;
+						SHUTDOWN)
+							sync
+							poweroff   # or: shutdown -h now
+							;;
+						*)
+							# EXIT or dialog cancelled: just return success
+							;;
+					esac
+					;;
+				0)
+					"$DIALOG" --title "Armbian imager" \
+						--msgbox "⚠ Verification FAILED!\n\nData read from $dev does not match the image.\nPlease try again or check the device." 12 75
+					return 1
+					;;
+				*)
+					"$DIALOG" --title "Armbian imager" \
+						--msgbox "Flashing completed.\n\nVerification was skipped (cmp not available)." 10 70
+					;;
+			esac
+		else
+			# Non-dialog / console mode
+			case "$verify_result" in
+				1)
+					echo "Flashing completed and verified OK."
+					read -rp "Action: [r]eboot, [s]hutdown, [e]xit? " action
+					case "$action" in
+						r|R)
+							sync
+							reboot
+							;;
+						s|S)
+							sync
+							poweroff   # or: shutdown -h now
+							;;
+						*)
+							;;
+					esac
+					;;
+				0)
+					echo "Verification FAILED."
+					return 1
+					;;
+				*)
+					echo "Flashing completed. Verification skipped (cmp not available)."
+					;;
+			esac
+		fi
+
+		return 0
+	}
+
+	# Helper: return 0 if cache directory contains any downloaded image
+	# (ignores the index file all-images.json). Intended for menu logic.
+	images_cache_has_content() {
+		[[ -d "$IMAGES_BASE" ]] || return 1
+		if find "$IMAGES_BASE" -maxdepth 1 -type f ! -name 'all-images.json' | read -r _; then
+			return 0
+		fi
+		return 1
+	}
+
+	case "$CMD" in
+		"${commands[0]}")  # install = main interactive flow
+			ensure_board_slug                    || return 1
+			refresh_images_json                  || return 1
+			confirm_board_or_choose_other        || return 1
+			select_preapp_for_board         "$BOARD_SLUG" || return 1
+			select_kernel_branch_for_board  "$BOARD_SLUG" || return 1
+			select_image_variant_for_board  "$BOARD_SLUG" || return 1
+			select_image_for_board          "$BOARD_SLUG" || return 1
+			select_block_device             || return 1
+			confirm_destroy_device "$TARGET_DEVICE" || return 1
+			download_image_file             || return 1
+			flash_image_to_device           || return 1
+		;;
+		"${commands[1]}")  # remove = remove downloaded images only
+			if [[ -d "$IMAGES_BASE" ]]; then
+				if [[ -n "$DIALOG" ]]; then
+					if $DIALOG --yesno "Remove all downloaded Armbian images in:\n\n$IMAGES_BASE\n\nThe index file (all-images.json) will be kept." 12 70; then
+						find "$IMAGES_BASE" -maxdepth 1 -type f ! -name 'all-images.json' -delete
+					fi
+				else
+					read -rp "Remove all downloaded images (keep all-images.json) in $IMAGES_BASE? [y/N]: " ans
+					if [[ "$ans" =~ ^[Yy]$ ]]; then
+						find "$IMAGES_BASE" -maxdepth 1 -type f ! -name 'all-images.json' -delete
+					fi
+				fi
+			fi
+		;;
+		"${commands[2]}")  # purge = remove everything
+			if [[ -d "$IMAGES_BASE" ]]; then
+				if [[ -n "$DIALOG" ]]; then
+					if $DIALOG --yesno "Completely purge the images cache directory?\n\n$IMAGES_BASE\n\nIndex and all downloaded images will be removed." 12 70; then
+						rm -rf "$IMAGES_BASE"
+					fi
+				else
+					read -rp "Purge $IMAGES_BASE (remove everything)? [y/N]: " ans
+					if [[ "$ans" =~ ^[Yy]$ ]]; then
+						rm -rf "$IMAGES_BASE"
+					fi
+				fi
+			fi
+		;;
+		"${commands[3]}")  # status
+			ensure_board_slug || return 1
+			if refresh_images_json; then
+				local count promoted_count
+				if ! count=$(jq -r --arg board "$BOARD_SLUG" '
+					def norm(s): (s | ascii_downcase | gsub("[^a-z0-9]+"; "-"));
+					[
+					.. | objects
+					| select(.board_slug? != null)
+					| select((.file_extension? // "") | test("\\.(asc|torrent|sha)"; "i") | not)
+					| select(norm(.board_slug) == norm($board))
+					]
+					| length
+				' "$IMAGES_JSON_PATH" 2>/dev/null); then
+					echo "Images index: FAILED (parse error in $IMAGES_JSON_PATH)"
+					return 1
+				fi
+
+				promoted_count=$(jq -r --arg board "$BOARD_SLUG" '
+					def norm(s): (s | ascii_downcase | gsub("[^a-z0-9]+"; "-"));
+					[
+					.. | objects
+					| select(.board_slug? != null)
+					| select((.file_extension? // "") | test("\\.(asc|torrent|sha)"; "i") | not)
+					| select(norm(.board_slug) == norm($board))
+					| select(.promoted=="true")
+					]
+					| length
+				' "$IMAGES_JSON_PATH" 2>/dev/null)
+
+				echo "Images index: OK"
+				echo "Board slug:        $BOARD_SLUG"
+				echo "Images available:  $count"
+				echo "Promoted images:   $promoted_count"
+				[[ -d "$IMAGES_BASE" ]] && echo "Cache directory:   $IMAGES_BASE"
+				[[ -n "$(command -v pv)" ]] && echo "Progress helper:   pv (enabled)" || echo "Progress helper:   pv (not installed)"
+
+				# --- NEW: count flashable block devices (excluding system disks) ---
+				local blockdev_count=0
+				local raw_devices line dev bytes
+				local rootdev bootdev bootefidev
+				local rootdisk="" bootdisk="" bootefidisk=""
+
+				# Find devices backing /, /boot, /boot/efi
+				rootdev=$(findmnt -n -o SOURCE / 2>/dev/null || echo "")
+				bootdev=$(findmnt -n -o SOURCE /boot 2>/dev/null || echo "")
+				bootefidev=$(findmnt -n -o SOURCE /boot/efi 2>/dev/null || echo "")
+
+				# Resolve to parent disks
+				if [[ -n "$rootdev" ]]; then
+					local rd
+					rd=$(lsblk -no PKNAME "$rootdev" 2>/dev/null || true)
+					rootdisk=${rd:+/dev/$rd}
+					[[ -z "$rd" ]] && rootdisk="$rootdev"
+				fi
+
+				if [[ -n "$bootdev" ]]; then
+					local bd
+					bd=$(lsblk -no PKNAME "$bootdev" 2>/dev/null || true)
+					bootdisk=${bd:+/dev/$bd}
+					[[ -z "$bd" ]] && bootdisk="$bootdev"
+				fi
+
+				if [[ -n "$bootefidev" ]]; then
+					local ed
+					ed=$(lsblk -no PKNAME "$bootefidev" 2>/dev/null || true)
+					bootefidisk=${ed:+/dev/$ed}
+					[[ -z "$ed" ]] && bootefidisk="$bootefidev"
+				fi
+
+				# List candidate devices
+				raw_devices=$(lsblk -dpno NAME | grep -E '/dev/(sd|hd|vd|nvme|mmcblk)' || true)
+
+				if [[ -n "$raw_devices" ]]; then
+					while IFS= read -r dev; do
+						bytes=$(lsblk -bdno SIZE "$dev" 2>/dev/null || echo 0)
+						(( bytes <= 0 )) && continue
+
+						# Skip system disks
+						[[ "$dev" == "$rootdisk" ]]     && continue
+						[[ "$dev" == "$bootdisk" ]]     && continue
+						[[ "$dev" == "$bootefidisk" ]]  && continue
+
+						(( blockdev_count++ ))
+					done <<< "$raw_devices"
+				fi
+
+				echo "Flashable devices: $blockdev_count"
+
+				# If none available → fail status
+				if (( blockdev_count < 1 )); then
+					echo "No flashable block devices detected."
+					return 1
+				fi
+				# --- END NEW ---
+			else
+				echo "Images index: FAILED (could not fetch $ALL_IMAGES_JSON_URL)"
+				return 1
+			fi
+		;;
+		"${commands[4]}")  # help
+			echo -e "\nUsage: ${module_options["module_images,feature"]} <command> [board_slug]"
+			echo -e "Commands:  ${module_options["module_images,example"]}"
+			echo "Available commands:"
+			echo -e "\tinstall\t- Interactive: filter by preinstalled app + stability + kernel + variant, select image, flash to device."
+			echo -e "\tremove\t- Remove downloaded image files (keep the index all-images.json)."
+			echo -e "\tpurge\t- Remove the entire images cache directory (index + images)."
+			echo -e "\tstatus\t- Show images index status and counts for the current board."
+			echo -e "\thelp\t- Show this help message."
+			echo
+			echo "Notes:"
+			echo "- Board slug defaults to \$BOARD if not given explicitly."
+			echo "- Image list is taken from: $ALL_IMAGES_JSON_URL"
+			echo "- Only records with real image file_extension are considered; entries whose"
+			echo "  file_extension contains .asc, .torrent or .sha* are ignored."
+			echo "- You can filter images by:"
+			echo "    * preinstalled_application: ALL / STABLE / barebone / specific (OMV, HA, OpenHAB, ...)"
+			echo "      - STABLE = download_repository == \"archive\""
+			echo "    * kernel_branch"
+			echo "    * image_variant"
+			echo "- Image selector columns: version | kernel | variant | size (MB) | {preinstalled}."
+			echo "- Menu marks promoted images with a leading '★'."
+			echo "- Board matching is case- and separator-insensitive (uefi-x86, UEFI_X86, uefi x86, etc.)."
+			echo
+		;;
+		"cache-status")  # internal: exit 0 if cache has any images, else 1
+			images_cache_has_content
+		;;
+		*)
+			${module_options["module_images,feature"]} ${commands[4]}
+		;;
+	esac
+}
diff --git a/tools/modules/software/module_images.sh_ b/tools/modules/software/module_images.sh_
new file mode 100644
index 00000000..cf61d23f
--- /dev/null
+++ b/tools/modules/software/module_images.sh_
@@ -0,0 +1,1257 @@
+#
+# Module options: images
+#
+module_options+=(
+	["module_images,author"]=""
+	["module_images,maintainer"]="@igorpecovnik"
+	["module_images,feature"]="module_images"
+	["module_images,example"]="install remove purge status help"
+	["module_images,desc"]="Download and flash Armbian OS images for selected hardware"
+	["module_images,status"]="Active"
+	["module_images,doc_link"]=""
+	["module_images,group"]="Management"
+	["module_images,arch"]="x86-64 arm64 armhf"
+)
+
+#
+# Module images
+#
+function module_images () {
+	local title="images"
+	local condition="ok"  # dummy, kept for consistency with other modules
+
+	local commands
+	IFS=' ' read -r -a commands <<< "${module_options["module_images,example"]}"
+
+	local ALL_IMAGES_JSON_URL="https://github.armbian.com/all-images.json"
+	local IMAGES_BASE="${SOFTWARE_FOLDER}/images"
+	local IMAGES_JSON_PATH="${IMAGES_BASE}/all-images.json"
+
+	# $1 = command, $2 = board_slug override (optional)
+	local CMD="$1"
+	local BOARD_SLUG="${2:-${BOARD:-}}"
+
+	# filters (set during install flow)
+	PREAPP_FILTER=""
+	DOWNLOAD_REPO_FILTER=""   # e.g. "archive" when STABLE is selected
+	KERNEL_FILTER=""
+	VARIANT_FILTER=""
+
+	# Ensure base directory exists
+	[[ -d "$IMAGES_BASE" ]] || mkdir -p "$IMAGES_BASE" || { echo "Couldn't create storage directory: $IMAGES_BASE"; return 1; }
+
+	# Helper: ensure dependencies
+	local -a DEPS=("curl" "jq")
+	for dep in "${DEPS[@]}"; do
+		if ! command -v "$dep" >/dev/null 2>&1; then
+			pkg_install "$dep"
+		fi
+	done
+
+	# Helper: ensure BOARD_SLUG is set, otherwise ask
+	ensure_board_slug() {
+		if [[ -z "$BOARD_SLUG" ]]; then
+			if [[ -n "$DIALOG" ]]; then
+				BOARD_SLUG=$($DIALOG --title "Board slug" --inputbox "Enter board slug (e.g. bananapi):" 8 50 3>&1 1>&2 2>&3)
+				[[ -z "$BOARD_SLUG" ]] && { echo "Board slug not provided."; return 1; }
+			else
+				read -rp "Enter board slug (e.g. bananapi): " BOARD_SLUG
+				[[ -z "$BOARD_SLUG" ]] && { echo "Board slug not provided."; return 1; }
+			fi
+		fi
+		return 0
+	}
+
+	# Helper: fetch/refresh JSON (simple cache, max age 1 day)
+	refresh_images_json() {
+		local max_age=$((24*60*60))  # 1 day
+		local now epoch
+
+		now=$(date +%s)
+
+		if [[ -f "$IMAGES_JSON_PATH" ]]; then
+			epoch=$(stat -c %Y "$IMAGES_JSON_PATH" 2>/dev/null || echo 0)
+		else
+			epoch=0
+		fi
+
+		if (( now - epoch > max_age )) || [[ ! -s "$IMAGES_JSON_PATH" ]]; then
+			if [[ -n "$DIALOG" ]]; then
+				$DIALOG --infobox "Refreshing Armbian images index...\n\n$ALL_IMAGES_JSON_URL" 8 70
+			else
+				echo "Refreshing Armbian images index from $ALL_IMAGES_JSON_URL ..."
+			fi
+
+			if ! curl -fsSL "$ALL_IMAGES_JSON_URL" -o "$IMAGES_JSON_PATH"; then
+				echo "Failed to download $ALL_IMAGES_JSON_URL"
+				return 1
+			fi
+		fi
+		return 0
+	}
+
+	# Helper: let user pick a board_slug from the index (unique list)
+	# Only consider records with real flashable images (file_extension NOT .asc/.torrent/.sha*)
+	choose_board_slug_from_index() {
+		local -a options=()
+		local temp_list slug
+
+		temp_list=$(jq -r '
+			[
+			.. | objects
+			| select(.board_slug? != null)
+			| select((.file_extension? // "") | test("\\.(asc|torrent|sha)"; "i") | not)
+			| .board_slug
+			]
+			| unique
+			| sort
+			| to_entries[]
+			| "\(.key)|\(.value)"
+		' "$IMAGES_JSON_PATH" 2>/dev/null)
+
+		if [[ -z "$temp_list" ]]; then
+			echo "No boards found in images index."
+			return 1
+		fi
+
+		while IFS='|' read -r idx slug; do
+			[[ -z "$idx" ]] && continue
+			options+=("$idx" "$slug")
+		done <<< "$temp_list"
+
+		local selected_idx
+
+		if [[ -n "$DIALOG" ]]; then
+			selected_idx=$($DIALOG --title "Select board" \
+				--menu "No images found for the current board.\n\nSelect a different board to flash:" 20 76 12 \
+				"${options[@]}" \
+				3>&1 1>&2 2>&3)
+		else
+			echo "Boards available in index:"
+			local i=0
+			while [[ $i -lt ${#options[@]} ]]; do
+				echo "  ${options[$i]}: ${options[$((i+1))]}"
+				((i+=2))
+			done
+			read -rp "Enter board index: " selected_idx
+		fi
+
+		[[ -z "$selected_idx" ]] && return 1
+
+		BOARD_SLUG=$(jq -r --argjson i "$selected_idx" '
+			[
+			.. | objects
+			| select(.board_slug? != null)
+			| select((.file_extension? // "") | test("\\.(asc|torrent|sha)"; "i") | not)
+			| .board_slug
+			]
+			| unique
+			| sort
+			| .[$i]
+		' "$IMAGES_JSON_PATH")
+
+		[[ -z "$BOARD_SLUG" || "$BOARD_SLUG" == "null" ]] && return 1
+
+		return 0
+	}
+
+	# Helper: confirm current BOARD_SLUG or choose another from index
+	confirm_board_or_choose_other() {
+		# If we don't have a board yet, nothing to confirm
+		if [[ -z "$BOARD_SLUG" ]]; then
+			return 0
+		fi
+
+		if [[ -n "$DIALOG" ]]; then
+			local choice
+			choice=$($DIALOG --title "Confirm board" \
+				--menu "Detected board:\n\n  ${BOARD_SLUG}\n\nWhat would you like to do?" 13 76 3 \
+				"CURRENT" "Use this board" \
+				"OTHER"   "Choose another board from images index" \
+				3>&1 1>&2 2>&3)
+
+			[[ -z "$choice" ]] && return 1
+
+			case "$choice" in
+				CURRENT)
+					# keep BOARD_SLUG as-is
+					return 0
+					;;
+				OTHER)
+					# use JSON index and let user pick any board
+					choose_board_slug_from_index || return 1
+					return 0
+					;;
+			esac
+		else
+			echo "Current board slug: $BOARD_SLUG"
+			echo "  1) Use this board"
+			echo "  2) Choose another board from images index"
+			echo "  3) Cancel"
+			local ans
+			read -rp "Select [1-3]: " ans
+			case "$ans" in
+				1|"")
+					return 0
+					;;
+				2)
+					choose_board_slug_from_index || return 1
+					return 0
+					;;
+				*)
+					return 1
+					;;
+			esac
+		fi
+	}
+
+	# Helper: select preinstalled_application filter for board
+	# PREAPP_FILTER:
+	#   ""           -> all
+	#   "__EMPTY__"  -> barebone (preinstalled_application == "")
+	#   other        -> that exact preinstalled_application
+	select_preapp_for_board() {
+		local board="$1"
+		local -a options=()
+		local temp_list app
+		local has_barebone=0
+		local apps_list=""
+
+		temp_list=$(jq -r --arg board "$board" '
+			def norm(s): (s | ascii_downcase | gsub("[^a-z0-9]+"; "-"));
+			[
+			.. | objects
+			| select(.board_slug? != null)
+			| select((.file_extension? // "") | test("^img(\\.(xz|gz|zst|bz2|lz4))?$"; "i"))
+			| select(.kernel_branch != "cloud")
+			| select(norm(.board_slug) == norm($board))
+			| .preinstalled_application // ""
+			]
+			| unique
+			| sort
+			| to_entries[]
+			| "\(.key)|\(.value)"
+		' "$IMAGES_JSON_PATH" 2>/dev/null)
+
+		if [[ -z "$temp_list" ]]; then
+			PREAPP_FILTER=""
+			DOWNLOAD_REPO_FILTER=""
+			return 0
+		fi
+
+		# Split into barebone flag + list of named apps
+		while IFS='|' read -r _ app; do
+			if [[ -z "$app" ]]; then
+				has_barebone=1
+			else
+				apps_list+="${app}"$'\n'
+			fi
+		done <<< "$temp_list"
+
+		# Build clean options list
+		options=()
+		options+=("ALL"    "All images (barebone + preinstalled)")
+		options+=("STABLE" "Stable images only")
+
+		if [[ $has_barebone -eq 1 ]]; then
+			options+=("BAREBONE" "Barebone images only (no preinstalled apps)")
+		fi
+
+		while IFS= read -r app; do
+			[[ -z "$app" ]] && continue
+			local desc
+			case "$app" in
+				homeassistant)
+					desc="Home Assistant smart home suite"
+				;;
+				kali)
+					desc="Preinstalled security applications from Kali repository"
+				;;
+				omv|OMV)
+					desc="Openmediavault NAS appliance"
+				;;
+				openhab|OpenHAB|openHAB)
+					desc="Empowering the smart home"
+				;;
+				*)
+					desc="$app"
+				;;
+			esac
+			options+=("$app" "$desc")
+		done <<< "$apps_list"
+
+		local selected
+
+		if [[ -n "$DIALOG" ]]; then
+			selected=$($DIALOG --title "Prebuild images" \
+				--menu "\nSelect image type: stable, barebone, or with preinstalled apps." 22 76 12 \
+				"${options[@]}" \
+				--default-item STABLE \
+				3>&1 1>&2 2>&3)
+		else
+			echo "Available application filters for $board:"
+			local i=0
+			while [[ $i -lt ${#options[@]} ]]; do
+				echo "  ${options[$i]}: ${options[$((i+1))]}"
+				((i+=2))
+			done
+			read -rp "Enter filter (ALL/STABLE/BAREBONE or app name, empty=ALL): " selected
+		fi
+		local dlg_exit=$?
+		if [[ $dlg_exit -ne 0 ]]; then
+			return 1
+		fi
+
+		if [[ -z "$selected" || "$selected" == "ALL" ]]; then
+			PREAPP_FILTER=""
+			DOWNLOAD_REPO_FILTER=""
+		elif [[ "$selected" == "STABLE" ]]; then
+			# Only stable images: download_repository == "archive"
+			PREAPP_FILTER=""
+			DOWNLOAD_REPO_FILTER="archive"
+		elif [[ "$selected" == "BAREBONE" ]]; then
+			PREAPP_FILTER="__EMPTY__"
+			DOWNLOAD_REPO_FILTER=""
+		else
+			PREAPP_FILTER="$selected"
+			DOWNLOAD_REPO_FILTER=""
+		fi
+
+		return 0
+	}
+
+	# Helper: select kernel_branch filter for board
+	select_kernel_branch_for_board() {
+		local board="$1"
+		local -a options=()
+		local temp_list kbranch
+
+		temp_list=$(jq -r --arg board "$board" --arg preapp "$PREAPP_FILTER" --arg repo "$DOWNLOAD_REPO_FILTER" '
+			def norm(s): (s | ascii_downcase | gsub("[^a-z0-9]+"; "-"));
+			def preapp_filter:
+			if   $preapp == ""          then .
+			elif $preapp == "__EMPTY__" then select((.preinstalled_application // "") == "")
+			else select(.preinstalled_application == $preapp)
+			end;
+			def repo_filter:
+			if $repo == "" then .
+			else select(.download_repository == $repo)
+			end;
+			[
+			.. | objects
+			| select(.board_slug? != null)
+			| select((.file_extension? // "") | test("^img(\\.(xz|gz|zst|bz2|lz4))?$"; "i"))
+			| select(.kernel_branch != "cloud")
+			| select(norm(.board_slug) == norm($board))
+			| preapp_filter
+			| repo_filter
+			| .kernel_branch // "unknown"
+			]
+			| unique
+			| sort
+			| to_entries[]
+			| "\(.key)|\(.value)"
+		' "$IMAGES_JSON_PATH" 2>/dev/null)
+
+		if [[ -z "$temp_list" ]]; then
+			# No kernel information – just keep filter empty (all)
+			KERNEL_FILTER=""
+			return 0
+		fi
+
+		# "All" option
+		options+=("ALL" "All kernel branches")
+		while IFS='|' read -r _ kbranch; do
+			[[ -z "$kbranch" ]] && continue
+			options+=("$kbranch" "$kbranch")
+		done <<< "$temp_list"
+
+		local selected
+
+		if [[ -n "$DIALOG" ]]; then
+			selected=$($DIALOG --title "Kernel branch" \
+				--menu "\nSelect kernel branch to filter images (or choose All):" 14 70 4 \
+				"${options[@]}" \
+				3>&1 1>&2 2>&3)
+		else
+			echo "Available kernel branches for $board (preinstalled=${PREAPP_FILTER:-ALL}, repo=${DOWNLOAD_REPO_FILTER:-all}):"
+			echo "  ALL  - All kernel branches"
+			while IFS='|' read -r _ kbranch; do
+				[[ -z "$kbranch" ]] && continue
+				echo "  $kbranch"
+			done <<< "$temp_list"
+			read -rp "Enter kernel branch to filter (empty/ALL for all): " selected
+		fi
+
+		local dlg_exit=$?
+		if [[ $dlg_exit -ne 0 ]]; then
+			return 1
+		fi
+
+		if [[ -z "$selected" || "$selected" == "ALL" ]]; then
+			KERNEL_FILTER=""
+		else
+			KERNEL_FILTER="$selected"
+		fi
+
+		return 0
+	}
+
+	# Helper: select image_variant filter for board + kernel + preapp
+	select_image_variant_for_board() {
+		local board="$1"
+		local -a options=()
+		local temp_list variant
+
+		temp_list=$(jq -r --arg board "$board" --arg kbranch "$KERNEL_FILTER" --arg preapp "$PREAPP_FILTER" --arg repo "$DOWNLOAD_REPO_FILTER" '
+			def norm(s): (s | ascii_downcase | gsub("[^a-z0-9]+"; "-"));
+			def preapp_filter:
+			if   $preapp == ""          then .
+			elif $preapp == "__EMPTY__" then select((.preinstalled_application // "") == "")
+			else select(.preinstalled_application == $preapp)
+			end;
+			def repo_filter:
+			if $repo == "" then .
+			else select(.download_repository == $repo)
+			end;
+			[
+			.. | objects
+			| select(.board_slug? != null)
+			| select((.file_extension? // "") | test("^img(\\.(xz|gz|zst|bz2|lz4))?$"; "i"))
+			| select(.kernel_branch != "cloud")
+			| select(norm(.board_slug) == norm($board))
+			| preapp_filter
+			| repo_filter
+			| (if $kbranch != "" then select(.kernel_branch == $kbranch) else . end)
+			| .image_variant // "unknown"
+			]
+			| unique
+			| sort
+			| to_entries[]
+			| "\(.key)|\(.value)"
+		' "$IMAGES_JSON_PATH" 2>/dev/null)
+
+		if [[ -z "$temp_list" ]]; then
+			VARIANT_FILTER=""
+			return 0
+		fi
+
+		options+=("ALL" "All image variants")
+		while IFS='|' read -r _ variant; do
+			[[ -z "$variant" ]] && continue
+			options+=("$variant" "$variant")
+		done <<< "$temp_list"
+
+		local selected
+
+		if [[ -n "$DIALOG" ]]; then
+			selected=$($DIALOG --title "Image variant" \
+				--menu "\nSelect image variant to filter (or choose All):" 15 70 5 \
+				"${options[@]}" \
+				3>&1 1>&2 2>&3)
+		else
+			echo "Available variants for $board (preinstalled=${PREAPP_FILTER:-ALL}, kernel=${KERNEL_FILTER:-all}, repo=${DOWNLOAD_REPO_FILTER:-all}):"
+			echo "  ALL  - All variants"
+			while IFS='|' read -r _ variant; do
+				[[ -z "$variant" ]] && continue
+				echo "  $variant"
+			done <<< "$temp_list"
+			read -rp "Enter image variant to filter (empty/ALL for all): " selected
+		fi
+
+		local dlg_exit=$?
+		if [[ $dlg_exit -ne 0 ]]; then
+			return 1
+		fi
+
+		if [[ -z "$selected" || "$selected" == "ALL" ]]; then
+			VARIANT_FILTER=""
+		else
+			VARIANT_FILTER="$selected"
+		fi
+
+		return 0
+	}
+
+	# Helper: select image via menu (uses BOARD_SLUG + filters)
+	select_image_for_board() {
+		local board
+		board="$1"
+
+		while true; do
+			local temp_list
+			local -a options=()
+			local idx desc
+
+			temp_list=$(jq -r --arg board "$board" --arg kbranch "$KERNEL_FILTER" --arg variant "$VARIANT_FILTER" --arg preapp "$PREAPP_FILTER" --arg repo "$DOWNLOAD_REPO_FILTER" '
+				def norm(s): (s | ascii_downcase | gsub("[^a-z0-9]+"; "-"));
+				def preapp_filter:
+					if   $preapp == ""          then .
+					elif $preapp == "__EMPTY__" then select((.preinstalled_application // "") == "")
+					else select(.preinstalled_application == $preapp)
+					end;
+				def repo_filter:
+					if $repo == "" then .
+					else select(.download_repository == $repo)
+					end;
+
+				def spaces(n): reduce range(0;n) as $i (""; . + " ");
+				def pad(s; n):
+					(s // "") as $s |
+					($s | length) as $l |
+					if $l >= n then $s else $s + spaces(n - $l) end;
+				def pad_right(s; n):
+					(s // "") as $s |
+					($s | length) as $l |
+					if $l >= n then $s else spaces(n - $l) + $s end;
+				def size_mb(x):
+					(
+						(x.file_size // "0" | try tonumber // 0)
+						/ (1024*1024)
+						| if . < 1 then 1 else floor end
+						| tostring + " MB"
+					);
+				def show_ver(v):
+					(v // "") as $v |
+					if ($v | test("-trunk\\.[0-9]+$")) then
+						# Example: 26.2.0-trunk.33 -> T-33
+						"DEV." + ($v | capture("trunk\\.(?<n>[0-9]+)$").n)
+					else
+						$v
+					end;
+
+				[
+				.. | objects
+				| select(.board_slug? != null)
+				| select((.file_extension? // "") | test("^img(\\.(xz|gz|zst|bz2|lz4))?$"; "i"))
+				| select(.kernel_branch != "cloud")
+				| select(norm(.board_slug) == norm($board))
+				| preapp_filter
+				| repo_filter
+				| (if $kbranch != "" then select(.kernel_branch == $kbranch) else . end)
+				| (if $variant != "" then select(.image_variant == $variant) else . end)
+				]
+				| sort_by([ (if .promoted=="true" then 0 else 1 end), .armbian_version ])
+				| to_entries[]
+				| (
+					(.key|tostring) + "|" +
+					(if .value.promoted=="true" then "\u2605 " else "  " end) +
+					pad(show_ver(.value.armbian_version); 10) + " " +
+					pad(.value.distro_release // ""; 9) + " " +
+					pad(.value.kernel_branch // ""; 10) + " " +
+					pad(.value.image_variant // ""; 12) + " " +
+					pad_right(size_mb(.value); 7) + " " +
+					pad_right((.value.preinstalled_application // ""); 15)
+				)
+			' "$IMAGES_JSON_PATH" 2>/dev/null)
+
+
+			if [[ -z "$temp_list" ]]; then
+				# No images even after filters – offer to adjust filters
+				if [[ -n "$DIALOG" ]]; then
+					if $DIALOG --yesno "No images found for:\n\n  board:   $board\n  preapp:  ${PREAPP_FILTER:-ALL}\n  repo:    ${DOWNLOAD_REPO_FILTER:-all}\n  kernel:  ${KERNEL_FILTER:-all}\n  variant: ${VARIANT_FILTER:-all}\n\nWould you like to adjust filters?" 17 72; then
+						select_preapp_for_board         "$board" || return 1
+						select_kernel_branch_for_board  "$board" || return 1
+						select_image_variant_for_board  "$board" || return 1
+						continue
+					else
+						echo "No images found for the selected filters."
+						return 1
+					fi
+				else
+					echo "No images found for board=$board, preapp=${PREAPP_FILTER:-ALL}, repo=${DOWNLOAD_REPO_FILTER:-all}, kernel=${KERNEL_FILTER:-all}, variant=${VARIANT_FILTER:-all}."
+					read -rp "Adjust filters? [y/N]: " ans
+					if [[ "$ans" =~ ^[Yy]$ ]]; then
+						select_preapp_for_board         "$board" || return 1
+						select_kernel_branch_for_board  "$board" || return 1
+						select_image_variant_for_board  "$board" || return 1
+						continue
+					fi
+					return 1
+				fi
+				local dlg_exit=$?
+				if [[ $dlg_exit -ne 0 ]]; then
+					return 1
+				fi
+			fi
+
+			while IFS='|' read -r idx desc; do
+				[[ -z "$idx" ]] && continue
+				options+=("$idx" "$desc")
+			done <<< "$temp_list"
+
+			local selected_index
+
+			if [[ -n "$DIALOG" ]]; then
+				selected_index=$($DIALOG --title "Select Armbian image" \
+					--menu "\nBoard: $board\nPreinstalled: ${PREAPP_FILTER:-ALL}\nRepo: ${DOWNLOAD_REPO_FILTER:-all}\nKernel: ${KERNEL_FILTER:-all}\nVariant: ${VARIANT_FILTER:-all}\n★ = promoted image\n\n  #   version    release   kernel     variant    size (MB)  [preinstalled]" 26 80 8 \
+					"${options[@]}" \
+					3>&1 1>&2 2>&3)
+			else
+				echo "Available images for $board (preapp=${PREAPP_FILTER:-ALL}, repo=${DOWNLOAD_REPO_FILTER:-all}, kernel=${KERNEL_FILTER:-all}, variant=${VARIANT_FILTER:-all}; ★ = promoted):"
+				local i=0
+				while [[ $i -lt ${#options[@]} ]]; do
+					echo "  ${options[$i]}: ${options[$((i+1))]}"
+					((i+=2))
+				done
+				read -rp "Enter index to flash: " selected_index
+			fi
+
+			[[ -z "$selected_index" ]] && return 1
+
+			# Return the selected JSON object via global variable
+			IMAGE_JSON=$(jq -c --arg board "$board" --arg kbranch "$KERNEL_FILTER" --arg variant "$VARIANT_FILTER" --arg preapp "$PREAPP_FILTER" --arg repo "$DOWNLOAD_REPO_FILTER" --argjson idx "$selected_index" '
+				def norm(s): (s | ascii_downcase | gsub("[^a-z0-9]+"; "-"));
+				def preapp_filter:
+				if   $preapp == ""          then .
+				elif $preapp == "__EMPTY__" then select((.preinstalled_application // "") == "")
+				else select(.preinstalled_application == $preapp)
+				end;
+				def repo_filter:
+				if $repo == "" then .
+				else select(.download_repository == $repo)
+				end;
+				[
+				.. | objects
+				| select(.board_slug? != null)
+				| select((.file_extension? // "") | test("^img(\\.(xz|gz|zst|bz2|lz4))?$"; "i"))
+				| select(.kernel_branch != "cloud")
+				| select(norm(.board_slug) == norm($board))
+				| preapp_filter
+				| repo_filter
+				| (if $kbranch != "" then select(.kernel_branch == $kbranch) else . end)
+				| (if $variant != "" then select(.image_variant == $variant) else . end)
+				]
+				| sort_by([ (if .promoted=="true" then 0 else 1 end), .armbian_version ])
+				| .[$idx]
+			' "$IMAGES_JSON_PATH")
+
+			if [[ -z "$IMAGE_JSON" || "$IMAGE_JSON" == "null" ]]; then
+				echo "Failed to obtain image metadata."
+				return 1
+			fi
+
+			# Update BOARD_SLUG to the final chosen board
+			BOARD_SLUG="$board"
+			return 0
+		done
+	}
+
+	# Helper: select target block device
+	select_block_device() {
+		local -a dev_options=()
+		local raw_devices
+		local line dev size model bytes
+
+		# Find devices backing /, /boot, /boot/efi
+		local rootdev bootdev bootefidev
+		local rootdisk="" bootdisk="" bootefidisk=""
+
+		rootdev=$(findmnt -n -o SOURCE / 2>/dev/null || echo "")
+		bootdev=$(findmnt -n -o SOURCE /boot 2>/dev/null || echo "")
+		bootefidev=$(findmnt -n -o SOURCE /boot/efi 2>/dev/null || echo "")
+
+		# Resolve to parent disks (PKNAME) where possible
+		if [[ -n "$rootdev" ]]; then
+			local rd
+			rd=$(lsblk -no PKNAME "$rootdev" 2>/dev/null || true)
+			if [[ -n "$rd" ]]; then
+				rootdisk="/dev/$rd"
+			else
+				# fallback: maybe / itself is a whole disk (e.g. /dev/mmcblk0)
+				rootdisk="$rootdev"
+			fi
+		fi
+
+		if [[ -n "$bootdev" ]]; then
+			local bd
+			bd=$(lsblk -no PKNAME "$bootdev" 2>/dev/null || true)
+			if [[ -n "$bd" ]]; then
+				bootdisk="/dev/$bd"
+			else
+				bootdisk="$bootdev"
+			fi
+		fi
+
+		if [[ -n "$bootefidev" ]]; then
+			local ed
+			ed=$(lsblk -no PKNAME "$bootefidev" 2>/dev/null || true)
+			if [[ -n "$ed" ]]; then
+				bootefidisk="/dev/$ed"
+			else
+				bootefidisk="$bootefidev"
+			fi
+		fi
+
+		# List candidate block devices
+		raw_devices=$(lsblk -dpno NAME,SIZE,MODEL | grep -E '/dev/(sd|hd|vd|nvme|mmcblk)' || true)
+
+		if [[ -z "$raw_devices" ]]; then
+			echo "No suitable block devices found."
+			return 1
+		fi
+
+		while IFS= read -r line; do
+			dev=$(awk '{print $1}' <<< "$line")
+			size=$(awk '{print $2}' <<< "$line")
+			model=${line#"$dev $size "}
+			[[ -z "$model" || "$model" == "$size" ]] && model=""
+
+			# Skip eMMC boot / RPMB pseudo-devices like /dev/mmcblk1boot0, /dev/mmcblk1boot1, /dev/mmcblk1rpmb
+			if [[ "$dev" =~ mmcblk[0-9]+boot[0-9]+$ || "$dev" =~ mmcblk[0-9]+rpmb$ ]]; then
+				continue
+			fi
+
+			# Skip zero-size or invalid devices
+			bytes=$(lsblk -bdno SIZE "$dev" 2>/dev/null || echo 0)
+			if [[ -z "$bytes" ]]; then
+				bytes=0
+			fi
+			if (( bytes <= 0 )); then
+				continue
+			fi
+
+			# Skip any disk that contains the root or boot partitions
+			if [[ -n "$rootdisk" && "$dev" == "$rootdisk" ]]; then
+				continue
+			fi
+			if [[ -n "$bootdisk" && "$dev" == "$bootdisk" ]]; then
+				continue
+			fi
+			if [[ -n "$bootefidisk" && "$dev" == "$bootefidisk" ]]; then
+				continue
+			fi
+
+			dev_options+=("$dev" "$size ${model}")
+		done <<< "$raw_devices"
+
+		if [[ ${#dev_options[@]} -eq 0 ]]; then
+			if [[ -n "$DIALOG" ]]; then
+					"$DIALOG" --title "Error" --msgbox "No flashable block devices were found.\n\n(System disks are excluded automatically.)" 10 70
+			else
+					echo "No flashable block devices (excluding system disks) found."
+			fi
+			return 1
+		fi
+
+		local target
+
+		if [[ -n "$DIALOG" ]]; then
+			target=$($DIALOG --title "Select target device" \
+				--menu "\nSelect block device to flash.\n\n⚠  ALL DATA ON THE SELECTED DEVICE WILL BE LOST!" 15 76 3 \
+				"${dev_options[@]}" \
+				3>&1 1>&2 2>&3)
+		else
+			echo "Available block devices (ALL DATA WILL BE LOST):"
+			local i=0
+			while [[ $i -lt ${#dev_options[@]} ]]; do
+				echo "  ${dev_options[$i]}: ${dev_options[$((i+1))]}"
+				((i+=2))
+			done
+			read -rp "Enter device to flash (e.g. /dev/sdb): " target
+		fi
+
+		[[ -z "$target" ]] && return 1
+
+		TARGET_DEVICE="$target"
+		return 0
+	}
+
+	# Helper: confirmation dialog
+	confirm_destroy_device() {
+		local dev="$1"
+		local msg="WARNING!\n\nYou are about to write a disk image to:\n\n  ${dev}\n\nAll existing data on this device will be irreversibly destroyed.\n\nDo you want to continue?"
+
+		if [[ -n "$DIALOG" ]]; then
+			if ! $DIALOG --title "Final confirmation" --yesno "$msg" 15 72; then
+				return 1
+			fi
+		else
+			echo -e "$msg"
+			read -rp "Type YES to continue: " answer
+			[[ "$answer" != "YES" ]] && return 1
+		fi
+		return 0
+	}
+
+	# Helper: download image file
+	# Download is always done using file_url (full path)
+	# redi_url is only shown to the user as a clean short link
+	download_image_file() {
+		local file_url redi_url file_ext image_url filename dirname raw_filename
+
+		# Always download using file_url
+		file_url=$(jq -r '.file_url' <<< "$IMAGE_JSON")
+		redi_url=$(jq -r '.redi_url // ""' <<< "$IMAGE_JSON")
+		file_ext=$(jq -r '.file_extension // ""' <<< "$IMAGE_JSON")
+
+		# Determine real downloadable URL (must be file_url)
+		case "$file_url" in
+			*.img.xz)  image_url="$file_url" ;;
+			*.asc|*.torrent|*.sha*) image_url="${file_url%.*}" ;;
+			*) image_url="$file_url" ;;
+		esac
+
+		filename=$(basename "$image_url")
+		raw_filename="${filename%.xz}"
+
+		LOCAL_IMAGE_PATH="${IMAGES_BASE}/${raw_filename}"
+
+		# If already present, ask reuse
+		if [[ -f "$LOCAL_IMAGE_PATH" ]]; then
+			if [[ -n "$DIALOG" ]]; then
+				$DIALOG --title "Note" --yesno \
+					"\nUncompressed image already exists in ${IMAGES_BASE}/:\n\n${raw_filename}\n\nReuse this file?" \
+					12 70 && return 0
+			else
+				read -rp "Image $LOCAL_IMAGE_PATH exists. Reuse? [y/N]: " reuse
+				[[ "$reuse" =~ ^[Yy]$ ]] && return 0
+			fi
+			rm -f "$LOCAL_IMAGE_PATH"
+		fi
+
+		# File size for pv gauge
+		local content_length
+		content_length=$(jq -r '(.file_size // "0")' <<< "$IMAGE_JSON")
+		[[ -z "$content_length" ]] && content_length=0
+
+		# -------------------------
+		# Download + decompress
+		# -------------------------
+		local display_url="$redi_url"
+		[[ -z "$display_url" ]] && display_url="$image_url"
+
+		local rc=0
+
+					(s // "") as $s |
+					($s | length) as $l |
+					if $l >= n then $s
+		if command -v pv >/dev/null 2>&1 && [[ -n "$DIALOG" ]] && (( content_length > 0 )); then
+			local gauge_dir
+			gauge_dir=$(mktemp -d) || { echo "Failed to create temp dir"; return 1; }
+			local gauge_fifo="${gauge_dir}/fifo"
+			mkfifo "$gauge_fifo" || { rm -rf "$gauge_dir"; return 1; }
+
+			$DIALOG --title "Armbian imager" \
+				--gauge "\nDownloading and decompressing Armbian image...\n\n$display_url" \
+				10 70 0 < "$gauge_fifo" &
+			local gauge_pid=$!
+
+			{
+				curl -fSL "$image_url" 2>/dev/null \
+					| pv -n -s "$content_length" 2> "$gauge_fifo" \
+					| xz -T0 -dc \
+					> "$LOCAL_IMAGE_PATH"
+			} || rc=$?
+
+			rm -f "$gauge_fifo"
+			rmdir "$gauge_dir" 2>/dev/null || true
+			wait "$gauge_pid" 2>/dev/null || true
+
+			(( rc != 0 )) && {
+				echo "Failed to download or decompress image: $image_url"
+				rm -f "$LOCAL_IMAGE_PATH"
+				return 1
+			}
+
+		else
+			# Fallback simple mode
+			if [[ -n "$DIALOG" ]]; then
+				$DIALOG --infobox \
+					"\nDownloading and decompressing Armbian image...\n\n$display_url" \
+					8 70
+			else
+				echo "Downloading and decompressing: $display_url"
+			fi
+
+			curl -fSL "$image_url" \
+				| xz -T0 -dc \
+				> "$LOCAL_IMAGE_PATH" || {
+					echo "Failed to download or decompress: $image_url"
+					rm -f "$LOCAL_IMAGE_PATH"
+					return 1
+				}
+		fi
+
+		return 0
+	}
+
+	# Helper: flash image with dd + pv + whiptail gauge + verification
+	flash_image_to_device() {
+		local img="$LOCAL_IMAGE_PATH"
+		local dev="$TARGET_DEVICE"
+
+		if [[ ! -b "$dev" ]]; then
+			echo "Target device $dev is not a block device."
+			return 1
+		fi
+
+		if [[ ! -f "$img" ]]; then
+			echo "Image file not found: $img"
+			return 1
+		fi
+
+		# Get uncompressed image size for proper progress and verification
+		local img_size_bytes
+		img_size_bytes=$(stat -c '%s' "$img" 2>/dev/null || echo 0)
+
+		if ! [[ "$img_size_bytes" =~ ^[0-9]+$ ]] || (( img_size_bytes <= 0 )); then
+			echo "Unable to determine image size for $img"
+			return 1
+		fi
+
+		sync
+
+		# ------------------------------------------------------------
+		# FLASH PHASE (with gauge if pv + $DIALOG available)
+		# ------------------------------------------------------------
+		if command -v pv >/dev/null 2>&1 && [[ -n "$DIALOG" ]]; then
+			local gauge_dir
+			gauge_dir=$(mktemp -d) || { echo "Failed to create temp dir"; return 1; }
+			local gauge_fifo="${gauge_dir}/fifo"
+			mkfifo "$gauge_fifo" || { rm -rf "$gauge_dir"; return 1; }
+
+			# Reader: takes percentages from FIFO and feeds whiptail
+			{
+				while read -r line; do
+					echo "$line"
+				done < "$gauge_fifo"
+			} | "$DIALOG" --title "Armbian imager" \
+				--gauge "\nWriting image to $dev...\n\nPlease wait, this may take a while." 10 70 0 &
+			local gauge_pid=$!
+
+			# pv reads the image file, dd writes to device; pv stderr → FIFO (0..100)
+			{
+				pv -n -s "$img_size_bytes" "$img" \
+					| dd of="$dev" bs=4M conv=fsync,noerror status=none
+			} 2> "$gauge_fifo"
+
+			# Close FIFO and wait for whiptail to exit
+			rm -f "$gauge_fifo"
+			rmdir "$gauge_dir" 2>/dev/null || true
+			wait "$gauge_pid" 2>/dev/null || true
+		else
+			# Fallback: console progress
+			if [[ -n "$DIALOG" ]]; then
+				"$DIALOG" --title "Armbian imager" \
+					--infobox "\nWriting image to $dev...\n\nProgress is shown in the console." 8 70
+			else
+				echo "Writing image to $dev ..."
+			fi
+
+			if command -v pv >/dev/null 2>&1; then
+				pv -s "$img_size_bytes" "$img" \
+					| dd of="$dev" bs=4M conv=fsync,noerror status=none
+			else
+				dd if="$img" of="$dev" bs=4M conv=fsync,noerror status=progress
+			fi
+		fi
+
+		sync
+
+		# ------------------------------------------------------------
+		# VERIFY PHASE (compare img vs device, with optional gauge)
+		# ------------------------------------------------------------
+		local verify_result=2   # 1 = OK, 0 = FAILED, 2 = SKIPPED
+
+		if command -v cmp >/dev/null 2>&1; then
+			local block_size=$((4*1024*1024))
+			local blocks=$(( (img_size_bytes + block_size - 1) / block_size ))
+
+			if command -v pv >/dev/null 2>&1 && [[ -n "$DIALOG" ]]; then
+				# Gauge for verification
+				local gauge_dir
+				gauge_dir=$(mktemp -d) || { echo "Failed to create temp dir"; return 1; }
+				local gauge_fifo="${gauge_dir}/fifo"
+				mkfifo "$gauge_fifo" || { rm -rf "$gauge_dir"; return 1; }
+				{
+					while read -r line; do
+						echo "$line"
+					done < "$gauge_fifo"
+				} | "$DIALOG" --title "Armbian imager" \
+					--gauge "\nVerifying written image on $dev...\n\nPlease wait." 10 70 0 &
+				local v_pid=$!
+
+				# dd reads from device, pv tracks progress, cmp compares against img
+				verify_result=1
+				{
+					dd if="$dev" bs=$block_size count=$blocks status=none \
+						| pv -n -s "$img_size_bytes" 2> "$gauge_fifo" \
+						| cmp -n "$img_size_bytes" "$img" - >/dev/null
+				} || verify_result=0
+
+				rm -f "$gauge_fifo"
+				rmdir "$gauge_dir" 2>/dev/null || true
+				wait "$v_pid" 2>/dev/null || true
+			else
+				# No gauge, but still verify
+				echo "Verifying written image..."
+				if cmp -n "$img_size_bytes" \
+					"$img" \
+					<(dd if="$dev" bs=$block_size count=$blocks status=none) \
+					>/dev/null 2>&1; then
+					verify_result=1
+				else
+					verify_result=0
+				fi
+			fi
+		fi
+
+		sync
+
+		# ------------------------------------------------------------
+		# FINAL REPORT
+		# ------------------------------------------------------------
+		if [[ -n "$DIALOG" ]]; then
+			case "$verify_result" in
+				1)
+					# Success: offer actions
+					local action
+					action=$("$DIALOG" --title "Armbian imager" \
+						--menu "\nFlashing and verification completed successfully.\n\nChoose what to do next:" 14 72 3 \
+							"REBOOT"   "Reboot system now" \
+							"SHUTDOWN" "Power off the system" \
+							"EXIT"     "Return to shell/menu" \
+							3>&1 1>&2 2>&3)
+
+					case "$action" in
+						REBOOT)
+							sync
+							reboot
+							;;
+						SHUTDOWN)
+							sync
+							poweroff   # or: shutdown -h now
+							;;
+						*)
+							# EXIT or dialog cancelled: just return success
+							;;
+					esac
+					;;
+				0)
+					"$DIALOG" --title "Armbian imager" \
+						--msgbox "⚠ Verification FAILED!\n\nData read from $dev does not match the image.\nPlease try again or check the device." 12 75
+					return 1
+					;;
+				*)
+					"$DIALOG" --title "Armbian imager" \
+						--msgbox "Flashing completed.\n\nVerification was skipped (cmp not available)." 10 70
+					;;
+			esac
+		else
+			# Non-dialog / console mode
+			case "$verify_result" in
+				1)
+					echo "Flashing completed and verified OK."
+					read -rp "Action: [r]eboot, [s]hutdown, [e]xit? " action
+					case "$action" in
+						r|R)
+							sync
+							reboot
+							;;
+						s|S)
+							sync
+							poweroff   # or: shutdown -h now
+							;;
+						*)
+							;;
+					esac
+					;;
+				0)
+					echo "Verification FAILED."
+					return 1
+					;;
+				*)
+					echo "Flashing completed. Verification skipped (cmp not available)."
+					;;
+			esac
+		fi
+
+		return 0
+	}
+
+	# Helper: return 0 if cache directory contains any downloaded image
+	# (ignores the index file all-images.json). Intended for menu logic.
+	images_cache_has_content() {
+		[[ -d "$IMAGES_BASE" ]] || return 1
+		if find "$IMAGES_BASE" -maxdepth 1 -type f ! -name 'all-images.json' | read -r _; then
+			return 0
+		fi
+		return 1
+	}
+
+	case "$CMD" in
+		"${commands[0]}")  # install = main interactive flow
+			ensure_board_slug                    || return 1
+			refresh_images_json                  || return 1
+			confirm_board_or_choose_other        || return 1
+			select_preapp_for_board         "$BOARD_SLUG" || return 1
+			select_kernel_branch_for_board  "$BOARD_SLUG" || return 1
+			select_image_variant_for_board  "$BOARD_SLUG" || return 1
+			select_image_for_board          "$BOARD_SLUG" || return 1
+			select_block_device             || return 1
+			confirm_destroy_device "$TARGET_DEVICE" || return 1
+			download_image_file             || return 1
+			flash_image_to_device           || return 1
+		;;
+		"${commands[1]}")  # remove = remove downloaded images only
+			if [[ -d "$IMAGES_BASE" ]]; then
+				if [[ -n "$DIALOG" ]]; then
+					if $DIALOG --yesno "Remove all downloaded Armbian images in:\n\n$IMAGES_BASE\n\nThe index file (all-images.json) will be kept." 12 70; then
+						find "$IMAGES_BASE" -maxdepth 1 -type f ! -name 'all-images.json' -delete
+					fi
+				else
+					read -rp "Remove all downloaded images (keep all-images.json) in $IMAGES_BASE? [y/N]: " ans
+					if [[ "$ans" =~ ^[Yy]$ ]]; then
+						find "$IMAGES_BASE" -maxdepth 1 -type f ! -name 'all-images.json' -delete
+					fi
+				fi
+			fi
+		;;
+		"${commands[2]}")  # purge = remove everything
+			if [[ -d "$IMAGES_BASE" ]]; then
+				if [[ -n "$DIALOG" ]]; then
+					if $DIALOG --yesno "Completely purge the images cache directory?\n\n$IMAGES_BASE\n\nIndex and all downloaded images will be removed." 12 70; then
+						rm -rf "$IMAGES_BASE"
+					fi
+				else
+					read -rp "Purge $IMAGES_BASE (remove everything)? [y/N]: " ans
+					if [[ "$ans" =~ ^[Yy]$ ]]; then
+						rm -rf "$IMAGES_BASE"
+					fi
+				fi
+			fi
+		;;
+		"${commands[3]}")  # status
+			ensure_board_slug || return 1
+			if refresh_images_json; then
+				local count promoted_count
+				if ! count=$(jq -r --arg board "$BOARD_SLUG" '
+					def norm(s): (s | ascii_downcase | gsub("[^a-z0-9]+"; "-"));
+					[
+					.. | objects
+					| select(.board_slug? != null)
+					| select((.file_extension? // "") | test("\\.(asc|torrent|sha)"; "i") | not)
+					| select(norm(.board_slug) == norm($board))
+					]
+					| length
+				' "$IMAGES_JSON_PATH" 2>/dev/null); then
+					echo "Images index: FAILED (parse error in $IMAGES_JSON_PATH)"
+					return 1
+				fi
+
+				promoted_count=$(jq -r --arg board "$BOARD_SLUG" '
+					def norm(s): (s | ascii_downcase | gsub("[^a-z0-9]+"; "-"));
+					[
+					.. | objects
+					| select(.board_slug? != null)
+					| select((.file_extension? // "") | test("\\.(asc|torrent|sha)"; "i") | not)
+					| select(norm(.board_slug) == norm($board))
+					| select(.promoted=="true")
+					]
+					| length
+				' "$IMAGES_JSON_PATH" 2>/dev/null)
+
+				echo "Images index: OK"
+				echo "Board slug:        $BOARD_SLUG"
+				echo "Images available:  $count"
+				echo "Promoted images:   $promoted_count"
+				[[ -d "$IMAGES_BASE" ]] && echo "Cache directory:   $IMAGES_BASE"
+				[[ -n "$(command -v pv)" ]] && echo "Progress helper:   pv (enabled)" || echo "Progress helper:   pv (not installed)"
+
+				# --- NEW: count flashable block devices (excluding system disks) ---
+				local blockdev_count=0
+				local raw_devices line dev bytes
+				local rootdev bootdev bootefidev
+				local rootdisk="" bootdisk="" bootefidisk=""
+
+				# Find devices backing /, /boot, /boot/efi
+				rootdev=$(findmnt -n -o SOURCE / 2>/dev/null || echo "")
+				bootdev=$(findmnt -n -o SOURCE /boot 2>/dev/null || echo "")
+				bootefidev=$(findmnt -n -o SOURCE /boot/efi 2>/dev/null || echo "")
+
+				# Resolve to parent disks
+				if [[ -n "$rootdev" ]]; then
+					local rd
+					rd=$(lsblk -no PKNAME "$rootdev" 2>/dev/null || true)
+					rootdisk=${rd:+/dev/$rd}
+					[[ -z "$rd" ]] && rootdisk="$rootdev"
+				fi
+
+				if [[ -n "$bootdev" ]]; then
+					local bd
+					bd=$(lsblk -no PKNAME "$bootdev" 2>/dev/null || true)
+					bootdisk=${bd:+/dev/$bd}
+					[[ -z "$bd" ]] && bootdisk="$bootdev"
+				fi
+
+				if [[ -n "$bootefidev" ]]; then
+					local ed
+					ed=$(lsblk -no PKNAME "$bootefidev" 2>/dev/null || true)
+					bootefidisk=${ed:+/dev/$ed}
+					[[ -z "$ed" ]] && bootefidisk="$bootefidev"
+				fi
+
+				# List candidate devices
+				raw_devices=$(lsblk -dpno NAME | grep -E '/dev/(sd|hd|vd|nvme|mmcblk)' || true)
+
+				if [[ -n "$raw_devices" ]]; then
+					while IFS= read -r dev; do
+						bytes=$(lsblk -bdno SIZE "$dev" 2>/dev/null || echo 0)
+						(( bytes <= 0 )) && continue
+
+						# Skip system disks
+						[[ "$dev" == "$rootdisk" ]]     && continue
+						[[ "$dev" == "$bootdisk" ]]     && continue
+						[[ "$dev" == "$bootefidisk" ]]  && continue
+
+						(( blockdev_count++ ))
+					done <<< "$raw_devices"
+				fi
+
+				echo "Flashable devices: $blockdev_count"
+
+				# If none available → fail status
+				if (( blockdev_count < 1 )); then
+					echo "No flashable block devices detected."
+					return 1
+				fi
+				# --- END NEW ---
+			else
+				echo "Images index: FAILED (could not fetch $ALL_IMAGES_JSON_URL)"
+				return 1
+			fi
+		;;
+		"${commands[4]}")  # help
+			echo -e "\nUsage: ${module_options["module_images,feature"]} <command> [board_slug]"
+			echo -e "Commands:  ${module_options["module_images,example"]}"
+			echo "Available commands:"
+			echo -e "\tinstall\t- Interactive: filter by preinstalled app + stability + kernel + variant, select image, flash to device."
+			echo -e "\tremove\t- Remove downloaded image files (keep the index all-images.json)."
+			echo -e "\tpurge\t- Remove the entire images cache directory (index + images)."
+			echo -e "\tstatus\t- Show images index status and counts for the current board."
+			echo -e "\thelp\t- Show this help message."
+			echo
+			echo "Notes:"
+			echo "- Board slug defaults to \$BOARD if not given explicitly."
+			echo "- Image list is taken from: $ALL_IMAGES_JSON_URL"
+			echo "- Only records with real image file_extension are considered; entries whose"
+			echo "  file_extension contains .asc, .torrent or .sha* are ignored."
+			echo "- You can filter images by:"
+			echo "    * preinstalled_application: ALL / STABLE / barebone / specific (OMV, HA, OpenHAB, ...)"
+			echo "      - STABLE = download_repository == \"archive\""
+			echo "    * kernel_branch"
+			echo "    * image_variant"
+			echo "- Image selector columns: version | kernel | variant | size (MB) | {preinstalled}."
+			echo "- Menu marks promoted images with a leading '★'."
+			echo "- Board matching is case- and separator-insensitive (uefi-x86, UEFI_X86, uefi x86, etc.)."
+			echo
+		;;
+		"cache-status")  # internal: exit 0 if cache has any images, else 1
+			images_cache_has_content
+		;;
+		*)
+			${module_options["module_images,feature"]} ${commands[4]}
+		;;
+	esac
+}