Perhaps I was being dramatic, the old M.2 just stopped working. No smoke or anything.
The Bios update instructions say "do NOT recomend updating the BIOS if Pinnacle, Raven, Summit or Bristol Ridge"
Its in the Top One. I did not know their was two M.2 on the motherboard, the bottom is well hidden. I will certainly give this a go! Thank you. Can you point to me how you know this compatability issue? Would like to avoid in future.