HT201954: Unauthorized modification of iOS can cause security vulnerabilities, instability, shortened battery life, and other issues
Learn about Unauthorized modification of iOS can cause security vulnerabilities, instability, shortened battery life, and other issues
Close
Q: how do i restore my iphone with error 1015
-
Apr 19, 2012 5:13 AMby b j t,Error 1015: This error is typically caused by attempts to downgrade the iPhone, iPad, or iPod touch's software. This can occur when you attempt to restore using an older .ipsw file. Downgrading to a previous version is not supported. To resolve this issue, attempt to restore with the latest iPhone, iPad, or iPod touch software available from Apple. This error can also occur when an unauthorized modification of the iOS has occurred and you are now trying to restore to an authorized, default state. Very rarely this error is caused by a hardware issue and requires service.
iTunes: Specific update-and-restore error messages and advanced troubleshooting
