Face id is not working after screen replacement

If anyone other than Apple or an actual Apple Authorized Service Provider replaced the screen, Face ID will never work again. No one but Apple or Authorized Service Providers have access to authentic Apple Screens, or the tools and software to make Face ID work. If this is your situation, you can see if Apple itself would be willing to replace the screen on your iPhone, but they often refuse to touch phones which have been tampered with and have parts installed which are not authentic.

Try redoing the Face ID maybe? If it doesn't work, I don't know what else. After all, I did just get an iPhone 16 like… 2 or 2 1/2 weeks ago. I would say because my screen protecter broke once and I had to redo it and it works now (it was from a screen protector, not a screen, so probably wont work.)