This is the hint I got from AI 🙂 I changed the repositories from beta to stable and installed: sudo sed -i 's|beta.armbian.com|apt.armbian.com|g' /etc/apt/sources.list.d/armbian.list and sudo apt download armbian-bsp-cli-orangepi3-lts-current sudo dpkg --install --ignore-depends=base-files armbian-bsp-cli-orangepi3-lts-current_25.8.2_arm64.deb Now it's OK....but is this the right approach?

How did you determine this without holding the board in your hands? Without connecting the uart? It's so clear!)))) . The chips are located on both sides of the board. Assuming that h5anag8najr-wmc is a fake label and that the chip is 1Gbx8, the u-boot output on the uart should be Row=17 CS=2, not ROW=16 CS=1. Or am I wrong? If the board allows you to work with two ranks and the CS-1, A14, and A16 tracks are separated, then u-boot should display ROW=17, CS=2 Size=4096MB. https://github.com/hqnicolas/Rockchip-Library/tree/main/RK356x/rkbin - It is not possible to build rk356x_spl_loader_v1.xxx.bin, also known as the miniloader, using this link. There is no tools directory in this section.

@erebus041 @Nick AOne small detail: I've used etchdroid and drofus to burn my sd card.

Well, the source code is still on github so you could try building it. I can't find that tag in `armbian/build`, but did find `v24.11.0-trunk.303` It does build [I guessed at jammy, maybe it should be noble] time ./compile.sh build BOARD=jetson-nano BRANCH=current BUILD_DESKTOP=no BUILD_MINIMAL=yes RELEASE=jammy KERNEL_CONFIGURE=no KERNEL_GIT=full ARTIFACT_IGNORE_CACHE=yes [🐳|🌱] Fast-moving file to output/images [ -> Armbian-unofficial_24.11.0-trunk_Jetson-nano_jammy_current_6.6.116_minimal.img (4.07GiB) ] [🐳|🌱] Fast-moving file to output/images [ -> Armbian-unofficial_24.11.0-trunk_Jetson-nano_jammy_current_6.6.116_minimal.img.sha (202.00B) ] [🐳|🌱] Fast-moving file to output/images [ -> Armbian-unofficial_24.11.0-trunk_Jetson-nano_jammy_current_6.6.116_minimal.img.txt (19.29KiB) ]

@erebus041can you please provide the link of Yuzuki Chameleon images?