Thousands of iPhone 6 owners have faced an
unpleasant glitch in recent months: after updating the system to iOS 9, Error 53 appeared (Error 53), after which it was impossible to continue using the phone.

As it turned out, the device reacted to the presence of a non-original Home button with a Touch ID fingerprint sensor. If the user changed it not in the corporate center, but somewhere else on the cheap, the phone turns into a “brick”. At the same time in the company center repair can cost hundreds of dollars.
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It turns out that the company deliberately makes its device inoperable - a rather unusual case in the computer industry, to say the least - unique. This decision Apple has caused a
stormy outrage of users. The company is forced to make excuses.
An Apple
spokesman said the following : “We take the security of our users very seriously and Error 53 is the result of a security check designed to protect users. IOS verifies that the Touch ID sensor on your iPhone or iPad exactly matches the other components of the device. If iOS finds a mismatch, the check fails and the Touch ID, including the Apple Pay service, is disabled. This security measure is necessary to protect your device and to prevent the use of fraudulent Touch ID sensors. If a user encounters Error 53, we recommend that they contact Apple Support for technical support. ”
The problem is that some users encounter Error 53
even if their phone has not been repaired at all . This happened even with previous OS upgrades (for example, when installing version 8.3).
Apparently, the company considers such a “security measure” to be quite normal. At the same time, some users
say that Apple should have openly described such, to put it mildly, unusual functionality and even before selling the phone, openly stating that “repair in an unauthorized center could lead to the phone’s failure” - then it could still be considered "Features", but not a malicious glitch.