I will have to leave it to others to comment on the feasibility of physically moving a chip in order to keep the screen data, as I don't know the answer to that myself. I assume it can be done, but as far as which chip or chips need to be moved I haven't a clue.
As far as any drawbacks to not reprogramming the screen, the only one I'm aware of is that the True Tone function will no longer work. I know that newer phones have started putting out a message that the screen may not be genuine (even if it is a genuine Apple screen), but I'm not sure exactly which model started with that warning; I know it doesn't happen on the iPhone X, but I have no information on the XS Max. Those warnings, however, only appear as pop-ups temporarily and do not affect the operation of the screen whatsoever.
Keep in mind, however, that the reprogramming of the screen can be done at any time; you just have to remove the screen from the phone in order to program it. Although the simplest way is to copy the number from the old screen, it is also possible to retrieve the needed data directly from the phone itself, so it can still be done even if the original screen has been destroyed or discarded.
Cette réponse est-elle utile ?