How do I setup Face ID

Since you came here from a support document about problems with Face ID, so I'll guess you are having trouble.

If your Face ID is not working, see this, If Face ID isn't working on your iPhone or iPad Pro - Apple Support and this If an alert says Face ID has been disabled on your iPhone or iPad Pro - Apple Support. If neither help, then use the Get Support link at the top of the page here to contact Apple Support for service, or make a Genius Bar appointment at your nearest Apple Store. Genius Bar Reservation and Apple Support Options - Apple

If the link in blue above your name on this page does not help, you will need to make an appointment at the nearest Apple Store for a repair...

Apple Store - Find a Store - Apple

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