Thanks - I got it working now - BUT…as soon as I move the / (root) partition to the NVME SSD according to this forum post, I get black screen no input:
When applying above procedure to move partion to NVME in combination with updating the kernel with above link from Jack - my Rock Pi black screens / won´t boot - what the heck is happening?
When moving root partition before above mentioned updates, everything works, but in combination if fails during boot (black screen - no input)
I believe i am at my 10th re-install of Rock Pi within a couple of days 