The iPad could not be restored.An Unknown error occurred(11)
how to fix error 11
iPad Air 2 WiFi, Cellular, iOS 8.4.1
User profile for user:
Jason L
User level:
Community Specialist
Hi Duma1978,
Welcome to Apple Support Communities.
The information in the article below can help you resolve the "unknown error 11" alert that you're seeing when attempting to restore your iPad with iTunes.
Get help with iOS update and restore errors - Apple Support
Check for hardware issues
Errors: 1, 3, 11, 12, 13, 14, 16, 20, 21, 23, 26, 27, 28, 29, 34, 35, 36, 37, 40, 53, 56, 1002, 1004, 1011, 1012, 1014, 1667, or 1669.
Your device or computer might have a hardware issue that stops the update or restore from completing.
- Check that your security software and settings aren't blocking your device from communicating with the Apple update server.
- Then try to restore your iOS device two more times while connected with a cable, computer, and network you know are good.
- Make sure that your security software and settings are allowing communication between your device and update servers.
- If you still see the error message when you update or restore, contact Apple support.
If you still see the error message, check for outdated or modified software.
Ciao.