What does it mean if the 'Unknown Error Occurred 4013' appears after restoring my iPhone 11 from a backup?

Question

Grade: Education Subject: Support
What does it mean if the 'Unknown Error Occurred 4013' appears after restoring my iPhone 11 from a backup?
Asked by:
106 Viewed 106 Answers

Answer (106)

Best Answer
(320)
If the error appears after a restore, the backup might be corrupted or incompatible with the current iOS version. This can happen if the backup was created on a different iOS version or if the backup process was interrupted. Try restoring from an older backup, if available, or perform a fresh restore from a new backup.