Chosen Solution
I put an iPhone X Logic Board with its Face ID Components into another Original iPhone X Case. So i put the Logic Board and Face ID components from the nee case out ans put my Parts in. Everything works except True Tone. What do i have take from the old case to the new one to get it to work? I used the SAME Screen as I used before and True Tone was working. And there is no damage. Or my question will be answered if you know which parts in a phone have to from the Same phone to get True Tone to work? (Same serial etc…like with Face ID Or Touch ID) I dont find anything in the Internet, except the screen issue. Thanks
iPhone are fragile when it comes to stuff like this, even when apple replace the screen they sometime mess up true tone. So it could be any part that gives you this problem.
What you can do is use an eeprom reader to reprogram the screen with another original and it should come back. If you dont have this machine and dont want to invest in one you should hit up a local repair store, they should have one of these machines and might be able to help you
