If your SSD has died in your MacBook, Can you please tell us approx how much free available space was your drive, The Size of your Drive, and The brand.
Another good question to ask if they applied the apple firmware update for Toshiba SSDs that came out a few months ago.
I first started experiencing problems when my 128 TS SSD was nearly full. I trashed some things to make more space, but it still died on me.
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This update will show up in the App Store updates right? If so I updated, but still had my SSD fail on me.