Ok, after search, NPU is not integrate in the kernel. So ... It need patched kernel recompilation. I will try that later.

https://drive.google.com/file/d/1vyQGR8kgzhCzmwuXhb8q5j707U9IXFob/view?usp=sharing The file in this shared link is the image file provided by the manufacturer for my Android device. I hope it will be useful, and thank you for your help! I can't compile a custom Armbian image and hope to get help from the community.@Hqnicolas

Just for posterity. fluster-run-odroid-m2-summary

You can ask for other users to publish they ROM images, but, the ideal way is to compile your own images, since this is a custom driver, I think it's a safe way to go. You can share some pictures images from the board, so we can confirm your WiFi board and lan chip.

Did you also install the dtb that belongs to that kernel version? You could check if the dtbo is compatible with your dtb with: fdtoverlay -v -i /boot/dtb/current.dtb -o /tmp/test.dtb your-overlay.dtbo It would be better to compile the dts with armbian-add-overlay your-overlay.dts so it will automatically install it to /boot/overlay-user and added to your armbianEnv.txt. In this way it also won't get overwritten when you update the dtb. And of course like Werner said, check the debug serial console, you'll see much more detailed information. And check if the symlinks are correctly linked to your kernel version. ls -l /boot