Chosen Solution
SOLVED: I got my True Tone by using JC Repair Assistant. Apparently, the MtSN which 3utools provided was incorrect. Hello everyone, I have a problem to re-enable True Tone function on the iPhone XR despite copying the serial to the new screen. My young brother dropped his iPhone XR and made a crack on his front screen. I managed to get a pulled front screen and replaced it. I also transfered the cracked screen’s ear speaker with the attached sensors. After replacement, I turned on the iPhone XR and everything was working, screen, touch, Face ID and ear speaker. Only function that is missing - True Tone. I used the Qian Li’s iCopy Plus 2.x to copy the data, however my cracked screen’s cable broke. So I used 3uTools to copy the “Cover Board Number” and paste it in Qian Li computer software (“MtSN”). Qian Li software and Qian Li iCopy Plus device say they both read and wrote the data succesfully. I followed YouTube videos to do this repair. Unfortunately, it still does not work after writing the data 4 times. Does anyone else have experienced this problem before? Or did I do something wrong? Thanks in advance and thanks for your time
EDIT Nov 5 ‘22
QianLi iCopy Plus 2.x - MtSN read of the new screen
PC software 3utools reading of the iPhone XR Update (11/06/2022) I got my True Tone by using JC Repair Assistant. Apparently, the MtSN (cover board number) which 3utools provided was incorrect.
It might be because even though you tricked the phone into thinking its a real screen it might not support because of it being a third party screen
If you have an old LCD then only copy the data and write if you have programmers. Ear speaker flex must be the same as the previous old screen.
Hi Jason, What kind of replacement screen did you get? I can’t remember where I saw it (or even if it was specific to iCopy), but I read that one programmer specifically said it didn’t support the Incell LCDs. I’ll see if I can find that reference, but it’s a moot point if you bought an OLED replacement and not a cheap LCD. Having used device programmers for years, it’s possible you’re getting a false positive on the data being written. Can you read back the data written to the replacement screen and verify that it matches the MtSN you read from the phone?
