Chosen Solution
So today I repaired a customers IPhone X screen. The customer had a screen burn with the keyboard being the location of the burn. Due to this being an AMOLED screen I am familiar with this issue. However after putting on multiple different screens, the screen burn was still there. Any ideas?
Are you copying the screen data to the new screen? If so I have seen this happen a few times where the burn gets transferred as well as the data. I don’t think there is much you can do except delete the data off the screen and lose true tone.
It could possibly be a problem with the screen’s connector on the logic board. Depending on the color and intensity of the burn in, a pin on the motherboard could possibly be burnt or have another problem with it. It could also possibly be a capacitor however I would expect it to be a pin on the connector. Hope this helps!