Today Apple released iOS 9.2.1 updated version build 13D20 for Touch ID enabled iOS devices new models including iPhone 6, iPhone 6 Plus, iPhone 6s, iPhone 6s Plus, iPad Air 2 and iPad mini 3 and 4. This new update is released to fix the iPhone unknown error 53, which bricks these latest iOS devices whenever a 3rd party Touch ID repair is carried out on these devices.
This today released of iOS 9.2.1 carries the build number 13D20 as compared to iOS 9.2.1 earlier build 13D15 released for public last month.
Beside issuing this new updated iOS 9.2.1 version, Apple also has submitted a new support page on its website with some information on this new iPhone error 53 and the way to start fixing the problem.
iPhone Unknown Error 53 Here’s Quick Fix
The given steps on Apple support page is given as follows:
- 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.
One thing is important to note that the OTA or iTunes update of this new build is not available for every iOS device. Only those devices should need to get this new 13D20 build of iOS 9.2.1 which are effected by iPhone error 53. So it is not a regular iOS update.
If your device is also getting the same error the download iOS 9.2.1 build 13D20 here:
- iPhone 6s
- iPhone 6s Plus
- iPhone 6
- iPhone 6 Plus
- iPad Pro (GSM + Wi-Fi)
- iPad Pro (Wi-Fi)
- iPad Air 2 (GSM+Wi-Fi)
- iPad Air 2 (Wi-Fi)
- iPad mini 4 (GSM + Wi-Fi)
- iPad mini 4 (Wi-Fi)
- iPad mini 3 (China)
- iPad mini 3 (GSM + Wi-Fi)
- iPad mini 3 (Wi-Fi)
(source: Apple)
Since Apple is extremely cautious about the security and has some checks in place while booting up the Touch ID enabled iPhone, iPad. Apple in fact make use of a co-processor to keep the Touch-ID keys separately. When the device is start its booting the iOS 9 performs a couple of checks for the Touch ID integrity which is not intact after an unauthorized repair of Touch ID. But no matter this new iOS 9.2.1 build 13D20 will fix this iPhone error 53.
