4 ms·
This part of that support article is pretty damning: WARNING: Back up your data before you restore the firmware on your Mac. When you restore the firmware on a
by bobbylarrybobby 6y ago
This part of that support article is pretty damning:
WARNING: Back up your data before you restore the firmware on your Mac. When you restore the firmware on a Mac that contains an Apple T2 Security Chip, you are restoring the firmware on the T2 chip and on any volumes on your internal SSD storage. When this process is complete, any data on any SSD volumes is unrecoverable.
So this means that a firmware issue can lead to total data loss? Of course you should always have a backup, but nevertheless...
- selectodude 6y agoThe T2 is the SSD controller, which also transparently encrypts all the data on the SSD. So yeah, a firmware issue will nuke your data by design.
- owenwil 6y agoThe ironic thing about that suggestion is that if you’re reading that article, your Mac is already non-functional anyway, so good luck doing a backup :)
- atoav 6y agoJust take out the SSD and ... Oh.
- raverbashing 6y agoEven if you could, SSD encryption keys are kept in T2
- azinman2 6y agoOnly if you turn on FileVault, AFAIK. And if so, then that’s the sensible encryption story.
- stefan_ 6y agoI thought this part was more damning: In very rare circumstances, such as a power failure during a macOS upgrade, a Mac that has the Apple T2 Security Chip may become unresponsive The chip that has the keys for your system in its hands does not have redundant firmware images, like every cheap ass Android?
- neurostimulant 6y agoEven some high end Android devices has dual system partitions to allow rolling back in the event of botched upgrades
- pram 6y agoTo be clear there are two options: Revive and Restore. Revive just reinstalls the T2 firmware and reboots the system. Restore basically clears the entire system as stated.