Last week, Apple announced that it was going to release a software update for the iPhone 13 that would make it easier to replace screens without breaking Face ID, but it didn't specify when the update might be available. Fortunately, we won't have to wait long, as repair experts claim to have successfully completed a simpler screen replacement on iPhone 13 phones running the beta version of iOS 15.2.
Before the update, it also required transferring the microcontroller from the original phone to the new one to make Face ID work after replacing the screen. It's a complicated process, and having to do this for every iPhone 13 that needs a new screen could significantly complicate the work of repair shops. But according to iCorrect, on the iPhone 13 with iOS 15.2 beta Face ID works fine after replacing the screen and without the need to port the microcontroller.
While Face ID still works, an "Important Display Message" warning appears on the replaced iPhone 13 screen that the device cannot verify whether the screen is a "genuine Apple part" - although iCorrect claims that the screen is indeed a genuine part. However, this is nothing out of the ordinary for Apple, which shows similar warnings on some iPhones after replacing the battery at unauthorized repair shops.
Source: YouTube, theverge