iOS 13.1 and Apple iPhone 11 Models
Starting with iOS 13.1 and iPhone 11 models (the 11, Pro, and Pro Max), your phone will report if it has a third-party screen: “Unable to verify this iPhone has a genuine Apple display.” iPhone Repair Base are here to help with this issue.
It starts as a persistent message on your lock screen, lasting for four days. After that, the warning lodges itself in the Settings for 15 days, and then in Settings > General > About after that. It’s also added to your “device information,” so that Apple staff can see it.