https://www.techradar.com/news/bad-touch-ios-113-is-bricking-third-party-iphone-8-screen-repairs

What a bad string of luck for people with broken iPhone screens who thought they were able to fix them on the cheap. Apple's problem-fixing iOS 11.3 update is now disabling some touchscreens replaced by third-party means.

The iPhone 8, in particular, is susceptible to this new iOS 11.3 problem, according to Motherboard, and it's happening whether the screens were fixed by non-Apple repair shops and were a self-repair at home.