Iphone 6 53 error

Hey sygomide,

Welcome to Apple Support Communities.

From what I gather, when you try to update your iPhone 6 to the latest version of iOS an error is displayed in iTunes. The article below provides information and troubleshooting tips that should help you resolve the issue.

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.

1. Check that your security software and settings aren't blocking your device from communicating with the Apple update server.
2. Then try to restore your iOS device two more times while connected with a cable, computer, and network you know are good.
3. Make sure that your security software and settings are allowing communication between your device and update servers.
4. 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If you still see the error message, check for outdated or modified software.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.

That's a hardware failure. Specifically, it indicates a failure in the Touch ID system or a mismatch between the logic board and the touch ID hardware.

If you had your screen and/or home button repaired or replaced by anyone other than Apple at any point in the past, your phone is now a brick. Apple won't touch it.