diff --git a/projects/ArchR/packages/hardware/quirks/devices/R36S Clone/001-device_config b/projects/ArchR/packages/hardware/quirks/devices/R36S Clone/001-device_config
index 4f7808b9af..2170dab502 100755
--- a/projects/ArchR/packages/hardware/quirks/devices/R36S Clone/001-device_config	
+++ b/projects/ArchR/packages/hardware/quirks/devices/R36S Clone/001-device_config	
@@ -5,8 +5,7 @@
 # Minimal per-device config: wire up the temperature sensors so System
 # Information (archr-info) and EmulationStation show CPU/GPU temps. The
 # quirks loader matches the folder name against /proc/device-tree/model
-# exactly, so this folder name MUST equal the DTS `model` string. Audio
-# routing and LED config are intentionally left to the working defaults.
+# exactly, so this folder name MUST equal the DTS `model` string.
 cat <<CONF >/storage/.config/profile.d/001-device_config
 # LED nodes use color+function (no label), so sysfs is blue:power.
 # Surfaces the DISABLE POWER LED switch in ES (the var is already in
@@ -14,6 +13,13 @@ cat <<CONF >/storage/.config/profile.d/001-device_config
 # invisible on every device).
 DEVICE_PWR_LED_CONTROL="true"
 DEVICE_POWER_LED="blue:power"
+# V20-era clone boards route the speaker through the external amp like
+# the Soysauce (the eeclone DTS ships the rk817-sound-amplified card),
+# so the playback mux and the jack input device must be wired up or the
+# speaker stays silent (Arch-R#35, config validated by reporters).
+DEVICE_PLAYBACK_PATH_SPK="SPK"
+DEVICE_PLAYBACK_PATH_HP="HP"
+DEVICE_HEADPHONE_DEV="/dev/input/by-path/platform-rk817-sound-amplified-event"
 DEVICE_TEMP_SENSOR="/sys/devices/virtual/thermal/thermal_zone0/temp"
 DEVICE_GPU_TEMP_SENSOR="/sys/devices/virtual/thermal/thermal_zone1/temp"
 CONF
diff --git a/projects/ArchR/packages/linux-drivers/RTL8188EUS/udev.d/99-rtl8188eus.rules b/projects/ArchR/packages/linux-drivers/RTL8188EUS/udev.d/99-rtl8188eus.rules
index 6be61e8de3..0732e25f17 100644
--- a/projects/ArchR/packages/linux-drivers/RTL8188EUS/udev.d/99-rtl8188eus.rules
+++ b/projects/ArchR/packages/linux-drivers/RTL8188EUS/udev.d/99-rtl8188eus.rules
@@ -1,11 +1,22 @@
 # Force the out-of-tree r8188eu driver for RTL8188EUS dongles, instead
 # of the in-tree rtl8xxxu (which scans but can't complete WPA2 4-way
-# handshake on this chip — see archr-linux/Arch-R#19).
+# handshake on this chip, see archr-linux/Arch-R#19).
 #
 # rtl8xxxu is loaded for many other RTL chips and we don't want to
 # blacklist it globally. Instead, this rule catches the 8188EUS USB
-# IDs at hotplug time, unbinds rtl8xxxu from the interface, and
-# (re)loads 8188eu.
+# IDs and moves the network interface over to 8188eu.
+#
+# The first shipped version of this rule matched the usb_device event
+# and echoed the device name (e.g. "1-1") into rtl8xxxu's unbind node.
+# That never worked: USB drivers bind to the *interface* ("1-1:1.0"),
+# and at usb_device add time no driver is bound yet anyway, while a
+# plain modprobe never rebinds an interface another driver already
+# claimed. Match the usb_interface event instead: by the time RUN
+# fires the kernel has finished its synchronous bind, so pulling the
+# interface off rtl8xxxu (a no-op when it lost the probe race) and
+# writing it into 8188eu's bind node is deterministic. %k is the
+# interface name, substituted by udev itself, so no shell expansion
+# or `$$` escaping is involved.
 #
 # Known RTL8188EUS USB IDs (vendor:product):
 #   0bda:0179  Realtek RTL8188EUS Wireless Adapter
@@ -16,25 +27,17 @@
 
 ACTION!="add", GOTO="rtl8188eus_end"
 SUBSYSTEM!="usb", GOTO="rtl8188eus_end"
-ENV{DEVTYPE}!="usb_device", GOTO="rtl8188eus_end"
+ENV{DEVTYPE}!="usb_interface", GOTO="rtl8188eus_end"
 
-ATTR{idVendor}=="0bda", ATTR{idProduct}=="0179", GOTO="rtl8188eus_swap"
-ATTR{idVendor}=="0bda", ATTR{idProduct}=="8179", GOTO="rtl8188eus_swap"
-ATTR{idVendor}=="0bda", ATTR{idProduct}=="8189", GOTO="rtl8188eus_swap"
-ATTR{idVendor}=="7392", ATTR{idProduct}=="7811", GOTO="rtl8188eus_swap"
-ATTR{idVendor}=="056e", ATTR{idProduct}=="4008", GOTO="rtl8188eus_swap"
+# ATTRS{} walks up to the parent usb_device for the vendor/product IDs.
+ATTRS{idVendor}=="0bda", ATTRS{idProduct}=="0179", GOTO="rtl8188eus_swap"
+ATTRS{idVendor}=="0bda", ATTRS{idProduct}=="8179", GOTO="rtl8188eus_swap"
+ATTRS{idVendor}=="0bda", ATTRS{idProduct}=="8189", GOTO="rtl8188eus_swap"
+ATTRS{idVendor}=="7392", ATTRS{idProduct}=="7811", GOTO="rtl8188eus_swap"
+ATTRS{idVendor}=="056e", ATTRS{idProduct}=="4008", GOTO="rtl8188eus_swap"
 GOTO="rtl8188eus_end"
 
 LABEL="rtl8188eus_swap"
-# Unbind apenas a interface USB específica do rtl8xxxu (não tira o
-# módulo do kernel — outros dongles RTL podem estar conectados ao
-# mesmo tempo); depois carrega 8188eu, que vai bindar pela alias
-# table. ${BUSNUM} e ${DEVNUM} são fornecidos por udev e identificam
-# o device USB sem ambiguidade.
-# udev parses `$` in RUN as its own specifier prefix, so shell variables
-# must be doubled (`$$` -> literal `$`). The previous single-`$` form made
-# udev reject the whole rule ("invalid substitution type"), so the rebind
-# never ran and the dongle was left on rtl8xxxu by luck of probe order.
-RUN+="/usr/bin/sh -c 'busid=$$(basename %p); for drv in /sys/bus/usb/drivers/rtl8xxxu; do [ -e \"$$drv/$$busid\" ] && echo \"$$busid\" > \"$$drv/unbind\" 2>/dev/null; done; modprobe 8188eu 2>/dev/null'"
+RUN+="/usr/bin/sh -c 'modprobe 8188eu; echo %k > /sys/bus/usb/drivers/rtl8xxxu/unbind 2>/dev/null; echo %k > /sys/bus/usb/drivers/8188eu/bind 2>/dev/null; exit 0'"
 
 LABEL="rtl8188eus_end"
diff --git a/projects/ArchR/packages/sysutils/system-utils/sources/scripts/headphone_sense b/projects/ArchR/packages/sysutils/system-utils/sources/scripts/headphone_sense
index 47009f00b6..9c6fd784a5 100755
--- a/projects/ArchR/packages/sysutils/system-utils/sources/scripts/headphone_sense
+++ b/projects/ArchR/packages/sysutils/system-utils/sources/scripts/headphone_sense
@@ -11,8 +11,15 @@ if [[ ${AUDIO_MANAGEMENT} == "UCM" ]]; then
     exit 0
 fi
 
-# Switch to headphones if we have them already connected at boot
-GPIO=$(cat /sys/class/gpio/gpio${DEVICE_JACK}/value)
+# Switch to headphones if we have them already connected at boot.
+# DEVICE_JACK is a legacy gpio sysfs number; mainline kernels don't
+# expose /sys/class/gpio, so only trust it when the node really exists
+# and otherwise start from the speaker path.
+if [ -n "${DEVICE_JACK}" ] && [ -e "/sys/class/gpio/gpio${DEVICE_JACK}/value" ]; then
+  GPIO=$(cat /sys/class/gpio/gpio${DEVICE_JACK}/value)
+else
+  GPIO=1
+fi
 [[ "$GPIO" == "0" ]] && set_setting "audio.device" "headphone" || set_setting "audio.device" "speakers"
 
 ### Set the default audio path, needed for some devices
@@ -24,10 +31,10 @@ fi
 STARTUP_DEVICE=$(get_setting "audio.device")
 case "${2}" in
     "headphone")
-        amixer -c 0 -M cset name=${DEVICE_PLAYBACK_PATH} ${DEVICE_PLAYBACK_PATH_HP}
+        amixer -c 0 -M cset "name=${DEVICE_PLAYBACK_PATH}" "${DEVICE_PLAYBACK_PATH_HP}"
     ;;
     "auto"|"speakers"|*)
-        amixer -c 0 -M cset name=${DEVICE_PLAYBACK_PATH} ${DEVICE_PLAYBACK_PATH_SPK}
+        amixer -c 0 -M cset "name=${DEVICE_PLAYBACK_PATH}" "${DEVICE_PLAYBACK_PATH_SPK}"
     ;;
 esac
 
@@ -42,11 +49,11 @@ HP_OFF='*(SW_HEADPHONE_INSERT), value 1*'
 evtest "${DEVICE}" | while read line; do
     case $line in
 	(${HP_ON})
-	amixer -c 0 cset name=${DEVICE_PLAYBACK_PATH} ${DEVICE_PLAYBACK_PATH_HP}
+	amixer -c 0 cset "name=${DEVICE_PLAYBACK_PATH}" "${DEVICE_PLAYBACK_PATH_HP}"
 	set_setting "audio.device" "headphone"
 	;;
 	(${HP_OFF})
-	amixer -c 0 cset name=${DEVICE_PLAYBACK_PATH} ${DEVICE_PLAYBACK_PATH_SPK}
+	amixer -c 0 cset "name=${DEVICE_PLAYBACK_PATH}" "${DEVICE_PLAYBACK_PATH_SPK}"
 	set_setting "audio.device" "speakers"
 	;;
     esac