Ios update

Have you have an ios beta profile installed? Remove that first to see the upgrade to iOS 16

See this for the Face ID

If you receive an alert that FaceID is disabled on your iPhone or iPad Pro

It can occur that you will receive the following message on your iPhone or iPad Pro : " A problem was detected with the true depth camera, FaceID is disabled"

When you're getting this error message, Make sure that you're iPhone or iPad Pro is running the latest version of iOS or iPadOS. If your device is running the latest iOS or iPadOS and you're still getting this message and FaceID is not working:  contact Apple Support to get your device serviced.

When Face ID is not working on your iPhon… - Apple Community

i had the same problem and i js fixed it go to your settings search up profile press on vpn & device management then remove the beta you have. you’ll get the ios 16 update after that

i have the same problem i have an iphone 12 my face id stopped working and i didn’t get the update