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Q: iPhone 4S Error 29
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May 23, 2016 11:53 AMby Jason L,Howdy Dheeeraj,
Welcome to Apple Support Communities.
It appears that there was an issue updating your iPhone 4s to the latest version of iOS. The article below provides troubleshooting suggestions that should help you resolve the issue updating your iPhone.
Get help with iOS update and restore errors - Apple Support
Use these basic steps when you see this message: "The iPhone [device name] could not be restored. An unknown error occurred [error number]." If you still see the error message, find your error below to learn what to do.
Check for hardware issues
If you see error 53, learn what to do. If you see one of the errors below, you might have a hardware issue:
- 1, 3, 10, 11, 12, 13, 14, 16
- 20, 21, 23, 26, 27, 28, 29, 34, 35, 36, 37, 40, 56
- 1002, 1004, 1011, 1012, 1014, 1667 1669
Here's what to check:
- Make sure that you have the latest version of iTunes.
- Check for issues with third-party security software.
- Make sure that your USB cable, computer, and network are reliable. Then try twice more to restore your iPhone, iPad, or iPod.
- If you still see the error message, you can check for outdated or modified software or contact Apple Support.
Take care.
