A lot of Apple iPhone users are furious after finding that their smartphone has been turned into a useless “brick.”

It’s happening because they are using third-party repair services, which causes the dreaded “Error 53” that Apple has installed in the iOS operating system to prevent Touch ID-related security problems, according to a Top Tech News report.

Rumors about Error 53 had been circulating for a while, but Apple has only just now confirmed them. One user wrote about his iPhone 6 Plus dying after disabling the Touch ID because he was having problems using it. When he eventually upgraded to iOS 8.3, he got the following message: “An unknown error occurred (53)”

Now, other iPhone users have come out of the woodwork to say they’ve gotten the same problem.

A support page on the Apple site that was posted on December 21 advised iPhone owners who had the problem to reach out to Apple Support to resolve it.

“If your iOS device has Touch ID (pictured above), iOS checks that the Touch ID sensor matches your device’s other components during an update or restore,” the website stated. “When iOS finds an unidentified or unexpected Touch ID module, the check fails. For example, an unauthorized or faulty screen replacement could cause the check to fail.”

Meanwhile, anticipation of iPhone 7 continues to build, as news of more features leaks out. The latest smartphone from Apple could be the most features-packed edition yet.

The phone will feature wireless and solar-powered charging, meaning the phone will powerup whenever you’re in the sun. It will also be waterproof, and have software that will enable you to take underwater photography.