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Q: 5c cannot restore error (-1)
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Oct 11, 2015 11:44 AMby Ingo2711,HelpfulHere's what this error can be about:
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If you still see the error message, check for outdated or modified software.
copied from: Get help with iOS update and restore errors
