Restoration of True Tone after screen replacement (iPhone 14 Pro Max)

As far as I am aware, there are no programmers yet which support the iPhone 14 series. This is bound to change at some point. But for the time being, the only way to restore True Tone would be to transfer the chips which store this data from the old screen to the new screen.

Transferring these components is not something most folks have the skills to do. But it can be done. It requires the ability to solder BGA chips in a temperature sensitive environment (too much heat and you damage the display). Other than that, you’ll need to wait for a programmer, or take it to Apple to get your True Tone back.

You'd need the old screen and to find a shop with the very latest programming tool.

Currently, after replacing the screen of iPhone series 13 and series 14, there is no option to copy truetone except for genuine screen replacement from Apple.

However, now there is a type of screen that seems to be a genuine apple screen, when replacing, you don't need to put the old screen IC but just install a new screen and run it again, then there will be a message "genuine parts" same as in apple store but cost more than external monitor.

I have the same issue. My screen fell on the road, it got shattered, and I replaced it at a 3rd party repair shop. The replacement screen I got from him is a genuine iPhone 14 Pro Max screen. After replacing the screen, everything works perfectly except for TruTone and automatic brightness. Both stopped functioning.