Error 53 is quite a headache for anyone who replaced their touch ID and updated their iOS to a superior version. At first Apple was reluctant to offer a fix and claimed this is a security measure to protect customers. iOS 9.2.1 build 13D20 will allow you to use your phone, but will NOT re-enable Touch ID. Therefore if you want to use your Touch ID get your home button replaced by Apple. A third party Touch ID will not work, no matter what.
Steps to fix your iPhone bricked by error 53 :
- Make sure that you have the latest version of iTunes.
- Force restart your device.
- Try to restore your device again.
- If you still see error 53 when you try to restore your device, contact Apple Support. If the restore won’t finish and you see a different error code, learn what to do.
Apple also created a support page, where you can find out about Error 53 and the steps you need to take to fix it.