I try to install optee on the hikey Kirin 620 board. (following this instruction: https://github.com/OP-TEE/build/blob/master/docs/hikey.md)
Everything works like described until the last point flashing the linux update on the board.
After i reboot as described (Reboot with GUI) the board somehow stuck while booting up. I can’t see any log messages or errors just black screen and LED1 (heartbeat) lights up and LED4 (CPU) flashing.
I tried installing different versions of optee but i think the last instruction will “kill” the board ($ dpkg --force-all -i /tmp/linux-image-*arm64.deb).
do you have any tips on how i can install optee on the board or debug the error ?