Depth camera issues
Face ID is disabled it says something about camera depth
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This iPhone User Guide describes setup and use of FaceID on supported models of iPhone:
Set up Face ID on iPhone - Apple Support
If FaceID has been disabled, you’ll need to follow this guidance:
If an alert says Face ID has been disabled on your iPhone or iPad Pro - Apple Support
If you unable to resolve a problem, you would be well advised to seek assistance directly from Apple Support:
You might also visit the Genius Bar at your local Apple Store or Apple Authorised Service Provider (AASP) - where the technicians will be able to test and assess your device:
