Face ID not working

Hello ~ If working back through the steps in the article you came from doesn’t help you may need to have your iPhone checked…

Genius Bar Reservation and Apple Support Options

Also you may go to lower left and click on Support.

If Face ID isn't working on your iPhone or iPad Pro - Apple Support

~Katana-San~

What was the result when you followed the guidance in the Related Article above your name on this page, that you were reading just before you posted here? If the Related Article doesn't answer your question please post back with more details about the issue and another user in this user-to-user forum will try to help.

Note, as the article says, that your phone may have a hardware problem, and there is a link in it to contact Apple to arrange for repair.