I tried to boot my Rockpi4B 4G 1.4 from nvme applying the procedure as in https://wiki.radxa.com/Rockpi4/Linux_system_runs_on_M.2_NVME_SSD
since then I am not able to boot other images from the uSD (like armbian)
I flash the images into the sd card with etcher, insert the uSD (and remove all other storage) and boot the board, but nothing happens (screen is off, blue led is off, green led is fixed on).
if i burn a radxa debian desktop image it works again.
Do i have to revert this spu bootloader somehow to use other images again? how?