It's usually straightforward to recover data from an unencrypted corrupt iTunes backup.
Trying - and failing - to restore the backup using iTunes is another indicator. If iPhone Backup Extractor doesn't recognise the backup, labels it incomplete, shows no available data, or suggest the backup was created a very long time ago - like ! - then it's likely there's a problem with the backup. It'll show your backup's status: if it says 'Complete and encrypted' or 'Complete and unencrypted' that's a good sign. The easiest way is to install the free version of iPhone Backup Extractor, and load your backup in it. How to tell if your iTunes backup is corrupt You've got a great chance of recovering corrupt backups automatically with iPhone Backup Extractor. Recovering data from a corrupt iTunes backup is difficult but not impossible, and messages like 'backup is corrupt or not compatible with your iPhone that is being restored' don't mean your data is 'irreversibly lost'.
