Quote:
Originally Posted by MikeFromMesa
Of course I could do a full copy of the file system but I don't think it would allow me to copy those back to OS portions of the tablet while it was running.
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So that's why you don't do it when it's running.
If you put your device in EDL mode, nothing is mounted, nothing is being changed.
If you've got the storage room on PC or disks or NAS or cloud it makes sense to make a full, raw backup.
Bricked your device? Just restore in one step.
Upgraded to a new version OS, hate it and there's no rollback? Just restore in one step.
The one caveat is:
Never "Wipe user data" even if you have a full backup.
Because this will erase your encryption keys and the userdata in your backup will be unreadable.
Does this work? Yeah, I've done it multiple times, including changing my reader to Chinese and back.