Hey guys,
About a year ago I installed the Crucial P2 with the
short Sintech adapter in a friend's MacBook Air 2014 running Catalina (Boot Rom: 474.0.0.0...
...Now the Mac is barely usable for any productive workflows as my friend's scared of losing the data. What can I do?
Any other ideas? Is this a known issue? Thanks in advance!
Your friend is scared of losing his data but hasn't got a full backup? That would be the first step.
I haven't got any experience of the P2 but have read a couple of anecdotes recently about it. In short, it's a QLC drive and doesn't have great endurance. Someone complained that his died well before the TBW had been reached. YMMV as ever.
You might have got some OS corruption on updates. I would first get that backup sorted. Two if possible, if you think that drive is going to get ditched.
DriveDx has a trial period. You should check the drive to see if it does have hardware issues. Firmware updates aren't a panacea. If the drive doesn't have a known showstopper bug on a particular firmware revision, then updating it is unlikely to make a huge amount of difference. Those are usually for small tweaks to garbage collection etc. You did say the drive had been working fine up until Big Sur, so it seems more likely to be a software issue.
You can try installing a combo update on your drive then and see if that fixes the problem. It isn't unknown for something to go wrong on delta updates and this could be the easiest fix. Otherwise, get those backups done, preferably cloning your drive to an external drive and checking that you can boot from that drive. Once done, wipe your internal drive, install Big Sur cleanly and migrate your apps and data back. It's a pain and a chore to do but better than fretting over an unreliable MacBook Air.