Face-id not working, non-original screen, no visible damage
Hello, I recently got an iPhone 12 pro max off eBay with a horrible quality aftermarket display. This meant iOS 16 wasn't working so the seller sold it to me as broken. I reverted it back to iOS 15.6 to get the screen working again but now the face-id says it's unavailable.
The seller swears it was working for him on iOS 15. The ambient light sensor works, 3utools says the front camera is original and I can see the ir light when trying to take a portrait selfie. However this also does not detect my face (keeps saying move further away). I am not sure if the ear piece was replaced but this seems unlikely since you buy a display without it normally? Could it still show the ir light even with a replaced ear-piece? Any way to fix face-id? I tried resetting restoring and everything. Face-id was also not working on iOS 16.3 (used voiceover to confirm that).
Is this a good question?
I've found out by now that it's the dot projector not working, but both it's flex cable and the projector itself look virtually perfect
by Yves Lauwereyns
Never believe sellers, all they want is to sell the item. It probably wasn't working when the seller had it.