iTunes either sync

Problem Restoring iPhone From Backup

A lot of people seem to be running into a problem when they try to restore their iPhone from a backup. They get an error message that says “The iPhone “X” could not be restored. An unknown error occurred (1015).” 

This problem seems to be caused by a conflict between two different backup files. One is a backup of the data on your phone, and the other is a backup of the settings for your phone. 

To fix this problem, …