Yesterday I updated the kernel of my Reform to 5.19-reform2 and something broke. I could not start the machine anymore, the screen would just say:
Waking up LPC... 0% No response from LPC
and then go blank. When I got home, I booted off of the sdcard with the rescue image (which is just a normal reform-system-v3 image) and used the following commands to overwrite the borked kernel with a slightly older, working one:
reform-flash-rescue # answer "y" twice reform-boot-config --emmc nvme
I got the command from https://community.mnt.re/t/trouble-booting-from-emmc/915/4, where it is used to setup and NVME and the internal EMMC storage.
Apart from that, I also found this issue that improves the Reform Operator Handbook with documentation about this and other commands: