How do I re-enable Face ID on my iPhone?
Face ID disabled
[Re-Titled by Moderator]
iPhone 12 Pro
Question marked as
There is most likely something wrong with your TrueDepth Camera, which is the hardware behind Face ID. That usually is the case when Face ID fails. That is the hardware behind it. Please review the following support articles.
If Face ID isn't working on your iPhone or iPad Pro - Apple Support
If an alert says Face ID has an issue on your iPhone or iPad Pro - Apple Support
If the above doesn’t help, please make a reservation at your nearest Apple Store’s Genius Bar or Apple Authorized Service Provider for diagnostics and service options.