AndreasKaram wrote:
If you have seen any videos, the problem isn’t wether the screen is genuine or not, but its not linked to the motherboard. Some repair shops have transfered an original screen from and iphone 13 pro to another and it didnt work
That is correct. Transferring a screen from one iPhone to another still makes Face ID inoperable.
Here is a link which you can look for Apple Authorized Service providers worldwide. If the provider you want to use is not listed, they are NOT Apple Authorized. If they are NOT Apple Authorized, they won't have access to Authentic Apple parts:
Apple - Find Locations - Location Selector