Hello, Got a MBP 13 from 2015. 256GB SSD, 16 GB RAM. I was doing some work, when the computer suddenly rebooted (probably because I had postponed the latest OS update by an hour). However, the update failed because it could not find some system files. Tried to reboot again, but was still stuck there. I Cmd-R:ed to restore with time machine. Restarted, but now I get the "no parking sign" on boot. Disk utilities show the disk as grayed out, uninitialized. Can't put it back "on the desktop". Can't reinstall the system, because it doesn't find any drives. Ran diagnostics (D on boot) that tells me there might be a problem with a memory module, and that I should take the computer to support. Is this a separate problem or does it include SSD-memory? Tried to mount through terminal, but says the drive might be locked. When I try to unlock it, it says it's unencrypted (true). In any case, I don't manage to reinitialize the drive. The SSD had been kind of sluggish since the month I got it. Programs took forever to start and file transfers were slow. Is the SSD bust? A memory module? Can I do something about it? Data backup? Or should I just bring it to Apple?