Use Decipher Backup Repair, BEST $30 I have spent! I was SICK thinking i lost all of my notes, and text messages (I backed up my photos separately) All apple said is "You wont be able to use this backup, if that message comes up"!!! What kind of an answer is that!? This is AFTER i already relinquished my phone at the genius bar for a cracked screen! They asked, did you backup your phone, and i said yes, having done this the night before. HAVING NO IDEA it was corrupted, as Itunes said nothing of the sort when it made the backup! Again Decipher backup saved my butt! (my backup was not encrypted though, dunno if it works with encrypted backups.) Also, i believe my backup was corrupted because windows 10 defender detected the backup as a virus, blocking it in the middle of the backup. I Disabled auto protect, and the backup completed without error, but it could have still affected the backup somehow.