Apple devices are not recognized for ease of "unofficial" repairs, many of the components being hard to replace, but that does not stop phone service from providing simpler operations for iPhone. Apple does not yet agree with these practices, despite the fact that several states in America have proposed laws that guarantee "the right to repairs." Following the 11.3 update of previous weeks, several iPhone 8 devices with changed display have stopped working
The affected iPhone 8 models seem to be among those who had the screen changed with an unofficial model. The display still shows information, and the phone starts, but the touch screen no longer takes any command. The reason why Apple can recognize a screen changed by an unauthorized service is an integrated microchip in the display, which most likely includes an Apple digital signature. If it is not found, the component does not work. Since the repair of the display was an operation that worked in previous iOS versions, even in the case of iPhone 8, it is clear that Apple decided to disable the devices deliberately
Some of the unauthorized service has already managed to overturn the problem by replacing the chip, but this operation still needs some intervention on the phone. Incidentally, this is not the first time Apple disables features from home-repaired devices. For iPhone 6 and 6S, the company chose to stop Touch ID functionality if the button was replaced
The reason many iPhone users are turning to unofficial solutions is the very high price for repairs made to Apple's authorized service. In the case of the new iPhone, a display can reach 320 euros for the iPhone X and 611 euros for the change of the case.