10-02-2021, 04:55 PM 
		
	
	
		I've identified the file you used as the following
https://github.com/sigmaris/u-boot/releases
rockpro64 u-boot v2021.04-rockpro64-ci
When rebooting, can you interrupt the boot sequence by holding down the KeyBoard(USB) "Back Space" key?
Check it out.
	
	
	
	
https://github.com/sigmaris/u-boot/releases
rockpro64 u-boot v2021.04-rockpro64-ci
When rebooting, can you interrupt the boot sequence by holding down the KeyBoard(USB) "Back Space" key?
Check it out.

 Vanilla mainline Debian 11 (Bullseye) on the RockPro64
 Vanilla mainline Debian 11 (Bullseye) on the RockPro64
				
