of iOS 9.2.1 to fix the “Error 53” issue
which was faced by many users. The “Error
53” could brick the device and make it useless. This problem was mainly
caused by an unauthorized Touch ID sensor replacement.
with the build number 13D15 whereas the new iOS 9.2.1 came with the build
number 13D20. There is no any extra features on this iOS except the “Error 53” bug fixes.
using iTunes if they’ve bricked their device by an unauthorized TouchID replacement. The new updated
version of iOS 9.2.1 is not available on OTA (over the air). That means you
need to manually update your device via iTunes using your PC.
drawback that you will ever like. If you have an “Error 53” issue, your device will get a life by this new update
again. But you will never be able to use your TouchID to unlock your device,
downloading apps etc. Your home button will work but not the Touch ID censor
which is a big thing to worry about. But you can still use a passcode to unlock
your device and install the app by manually entering the Apple ID password. You
will need to replace your Touch ID censor from an authorized Apple care in-order
make your TouchID work again.
following devices running 64 bit processor.