https://motherboard.vice.com/en_us/article/vbx8e4/iphone-stops-working-aftermarket-screen

Apple’s new update makes it hard for people to fix their phones. The iOS 11.3 update released at the end of March killed touch functionality in some iPhones repaired using aftermarket screens. Before the update, the phones worked fine. After the update, the users suddenly had a phone that would turn on but whose touchscreens didn’t work

It’s not the only problem with the iPhone 8 and iPhone X. A new video from Ohio-area iPhone repair shop iOutlet Michael Oberdick walks through several other issues that arise when trying to repair Apple’s latest line of smartphones.