Overview
If you’re having the screen on your iPhone 11 series model (11, 11 Pro or 11 Pro Max) replaced, there’s something you ought to know.
When you have the screen replaced by a non-Apple technician, you’ll get the following warning:-
Here you can see our technician installing the latest version of MacOS on a MacBook, the final part of refurbishment before it gets checked and goes on display. This is just one of the next batch of MacBook and Windows-based laptops that will be going on sale soon.
(Note; when we talk about “original” screens below, we use “original” to mean those which contain an Apple-manufactured panel rather than a “copy” screen, including unofficially-refurbished ones. This isn’t necessarily the original screen that came with the phone.)
About six months ago, we discussed a problem affected the iPhone 8, 8 Plus and X’s ALS (Ambient Light Sensor) if the screen had been replaced. To cut a long story short, if the replacement screen hadn’t been paired with the phone (i.e. its serial number and calibration data transferred from the original screen), then the screen’s automatic brightness adjustment stopped working under iOS 11, due to the ALS- required to measure how bright the surrounding light is- having been disabled.
