Hi!
I have a rMBP mid-2014, and I've been facing a problem for a few days: the SSD (
m.2 nvme Kingston NV1 500GB) is not recognized by the machine.
When I open the installer's Disk Utility (either through Internet Recovery or from the thumb drive), the disk does not appear. I go to the Terminal and give the "diskutil list", and nothing appears there either.
I bought two adapters that are very popular and recommended by other consumers. Because of the problem, I returned the first one thinking it was a problem with him and got another one, from another model, from another seller. It didn't work either.
With this second adapter (which is what I have now), I took another SSD (m.2 SATA WD Green) that has Windows installed and put it on to see if it recognized it. Unsuccessfully.
I read that it could be outdated NVME SSD firmware, and as I was booting from it in Internet Recovery, there was no way to update it. I put the OS on the flash drive, and still nothing changed.
Considering that (1) I changed the adapter twice and (2) I put in two different SSDs (I couldn't test NVME on another machine, but I bought brand new from an authorized seller; SATA works), I think the problem can only be in the my machine.
I reset the SMC and NVRAM every time, and nothing changed. Today I have Big Sur installed (ie the Boot ROM is up to date (System Firmware Version: 432.60.3.0.0)).
Any idea what should I do?