Replacing Touch ID
I need my screen replaced (Because it has a crack) the Touch ID doesn't work, how will I make it functional if I do somehow get it replaced and how do I get it replaced, because I'm planning to get it fixed with my dad's friend who fixes phones and he claims to have an original display. Would I be able to replace and retrieve the function of the Touch ID again? If so, can he do it?
iPhone 8 Plus, iOS 16