https://wccftech.com/ios-14-4-will-warn-users-on-iphones-with-a-non-genuine-camera/

Apple seeded the second beta of iOS 14.4 to developers this week and there is something really interesting discovered in the build. The latest beta build suggests that iOS 14.4 will introduce a warning on iPhone models regarding a non-genuine camera. This will ultimately make the user understand if the repairer has fixed the device with a genuine part or not. The addition is not only oriented towards the camera but a non-genuine display as well.

As mentioned earlier, iOS 14.4 will notify users if their iPhone has been repaired with a non-genuine part (via MacRumors), either the camera or the display. The message will appear through the Settings app > General > About. In addition to this, the message will also be displayed on the lock screen as a notification. If you're interested, here's what the message would read: