Well, it works now with some of the older SD cards i tried, they work as usual.
But the internal nvme (M.2) drive doesn't boot. When i start without any SD card, nothing happens, black screen, status light red not blinking.
So, i guess i need to start Armbian from SD card which works, and go to armbian-config... Well, i think this is where i messed up last time...
What exactly i need to do?
I'd like to boot from any SD card inserted, also from older ones, and from internal nvme drive when no card is in.