Hi there!
I just got my hands on a brand new Odroid C4.
I flashed Armbian Bullseye (tried Buster too as Bullseye is marked unstable) onto an SD card.
The Issue I'm now facing is, after any sort of kernel update the board will not properly soft reboot anymore.
I can restart the freshly installed system (which I generated the ix link with) as many times as I want using /sbin/reboot, but one apt upgrade later the board hangs in limbo when I issue a soft reboot.
I can see the system itself shutting down, the blue light stopping to heartbeat, and then nothing happens anymore, until I replug power, then the board boots up fine.
I have tried to run nand-sata-install as described on the C4's board page (If you face issues with rebooting run this as root) but it does not help, and I'm not even sure whether it even flashes a new U-Boot at all.
Obviously, I have trouble using the board as a server like this, as I'd have to come home and replug it if I ever need to reboot so hopefully this can get fixed
Should anyone require further data, I can always provide that.