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Error 35: Hardware Issue Detected
This error indicates a potential hardware issue with your iOS device that is preventing the update or restore process from completing successfully.
Before You Begin
- • On Mac with macOS Catalina 10.15 or later: Ensure your Mac is up to date
- • On Mac with macOS Mojave 10.14 or earlier: Ensure you have the latest version of iTunes
- • On PC: Ensure you have the latest version of iTunes or the Apple Devices app
Common Causes
- 1 Hardware malfunction in the device
- 2 Issues with the logic board
- 3 Faulty connection between device and computer
- 4 Incompatible or damaged USB cable
How to Fix Error 35
1
Restart iTunes/Finder
If iTunes is already open, quit and reopen it.
2
Check Security Software
Check your third-party security software.
3
Verify Connections
Make sure that your USB cable, computer, and network are reliable.
4
Retry Restore
Try again to restore your device.
5
Check for Modified Software
Check for outdated or modified software that might be causing conflicts.
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Still Need Help?
If you've tried all the steps above and still can't resolve the issue, you may need to contact Apple Support or visit an Apple Store. You can also compare your case against Apple's official iOS update and restore errors page.