Update firmware

Download and extract prebuilt firmware

If you do not want to build the firmware from source, you can also use our prebuilt firmwares.

Please first go to their latest release and find your product in the asset list:

Example release from https://github.com/radxa-pkg/u-boot-latest/releases/latest

You should then download the binary package from the supported release. In our example we will use u-boot-latest_2023.07.02-6-4257d241_arm64.deb as an example.

mkdir extract
cd extract
wget https://github.com/radxa-pkg/u-boot-latest/releases/download/2023.07.02-6/u-boot-latest_2023.07.02-6-4257d241_arm64.deb
ar vx *.deb
tar xvf data.tar.xz
ls usr/lib/u-boot/

You should see output similar to this:

[excalibur@yuntian extract]$ ls usr/lib/u-boot/
radxa-cm3-io          radxa-e23  radxa-zero       rock-3a  rock-4-core-io  rock-pi-4a       rock-pi-4b-plus  rock-pi-s
radxa-cm3-rpi-cm4-io  radxa-e25  radxa-zero-2pro  rock-3b  rock-4c-plus    rock-pi-4a-plus  rock-pi-4c
radxa-cm3-sodimm-io   radxa-e61  radxa-zero3      rock-3c  rock-4se        rock-pi-4b       rock-pi-n10

This means the firmware is extracted and is ready to use.

Update firmware existing system

To install the firmware to an existing system image (must be uncompressed raw image), or a block device (ex. microSD card), you can use the included setup.sh. With ROCK 4SE as an example:

sudo usr/lib/u-boot/rock-4se/setup.sh update_bootloader ~/system.img # Update a system image
# OR
sudo usr/lib/u-boot/rock-4se/setup.sh update_bootloader /dev/sdX # Update a block device

You can read more abour setup.sh from its own page.