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Jan 14, 2016 1:57 PM in response to dawnandtonyby judysings,Hello dawnandtony,
If you are unable to update the operating system on your iPhone, take a look at the troubleshooting steps outlined in the resource below.
If you can‘t update or restore your iPhone, iPad, or iPod touch
Here is some specific information regarding the error message you are seeing:
Get help with iOS update and restore errors
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If you still see the error message, check for outdated or modified software.
Take care,
