diff --git a/docs/variants/hardkernel_odroid_h4/building-manual.md b/docs/variants/hardkernel_odroid_h4/building-manual.md
index e89ae1cc..70f8e4e8 100644
--- a/docs/variants/hardkernel_odroid_h4/building-manual.md
+++ b/docs/variants/hardkernel_odroid_h4/building-manual.md
@@ -57,7 +57,7 @@ To build Dasharo (Slim Bootloader + UEFI) firmware image, first clone and enter
 Slim Bootloader repository:
 
 ```bash
-git clone https://github.com/Dasharo/slimbootloader.git -b odroid_h4_support
+git clone https://github.com/Dasharo/slimbootloader.git
 cd slimbootloader
 ```
 
@@ -76,41 +76,20 @@ then follow the steps below:
     git checkout hardkernel_odroid_h4_v0.9.0
     ```
 
-2. Checkout submodules:
-
-    ```bash
-    git submodule update --init --checkout --recursive
-    ```
-
-3. We need vendor image from which IDF and ME regions will be used when
-    stitching loader. You can use official Dasharo release binary if you have
-    access to it or you can download AMI BIOS from
-    <https://dn.odroid.com/ODROID-H4/bios/>. After downloading ZIP make sure to
-    extract needed binary to slimbootloader repository under `image.rom` name:
-
-    ```sh
-    unzip /path/to/ADLN-H4_B1.08.zip ADLN-H4_B1.08.bin
-    mv ADLN-H4_B1.08.bin image.rom
-    ```
-
-    In above commands replace `1.08` with BIOS version you downloaded.
-
-4. Build UEFI Payload and Slim BootLoader
+2. Build UEFI Payload and Slim BootLoader
 
     ```sh
     ./build.sh odroid_h4
     ```
 
-    You can also pass path to vendor image via `INPUT_IMAGE` variable
+!!! note
 
-    ```sh
-    INPUT_IMAGE=~/Downloads/hardkernel_odroid_h4_v0.9.0.rom ./build.sh odroid_h4
-    ```
+    If you wish to build Slim Bootloader with your own keys, run
+    `SBL_KEY_DIR=<path_to_keys> ./build.sh odroid_h4` instead, where the
+    `<path_to_keys>` is the path to the directory with keys generated with
+    `python BootloaderCorePkg\Tools\GenerateKeys.py -k <path_to_keys>` from the
+    clone Slim Bootloader directory. `<path_to_keys>` may be an absolute path
+    or path relative to Slim Bootloader repository directory.
 
-    The resulting Slim Bootloader image will be placed in the Slim Bootloader
-    directory as `Outputs/odroidh4/ifwi-release.bin`.
-
-    > The UEFI payload has almost no features enabled. Passing the following
-    > additional arguments: `-D VARIABLE_SUPPORT=SPI -D SECURE_BOOT_ENABLE=TRUE`
-    > `-D SMM_SUPPORT=TRUE -D CRYPTO_PROTOCOL_SUPPORT=TRUE` to enable variable
-    > and Secure Boot support results in a hang in the payload.
+The resulting Slim Bootloader image will be placed in the Slim Bootloader
+directory as `Outputs/odroid_h4/ifwi-release.bin`.