What is Error 53? Well, it basically turns your iPhone into a
brick. Why? Well it all ties into the Touch ID sensor on your
The problem occurs when an unauthorized repair center replaces a
home button. At first, the phone might work — with everything,
including Touch ID, seeming perfectly fine.
But as soon as you go to update to a newer version of iOS (or you
attempt to restore your phone from a backup), the software checks
to make sure the Touch ID sensor matches the rest of the hardware.
If it finds that there isn’t a match, your phone is basically
It seems very reasonable to me that iOS should check for a trusted Touch ID sensor. But, if the sensor can’t be trusted, clearly the whole phone should not be bricked — it should simply disable Touch ID and Apple Pay. And, obviously, it should inform the user why. Putting up an alert that just says “Error 53” is almost comically bad.