What I can do to fix my iPhone Face ID?

This is generally a hardware issue. If the unit's on an OS version older than 16.5.1, you might be able to fix it by updating it from a computer or the Software Update function in Settings; otherwise, contact Apple Support.

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What can I do to fix my faceID

I am having the same issue. My phone won’t let me set up Faceid. Ii can’t get into my bank either. I have a feeling my phone has been hacked.

Hello ~ See the two posts by*Niel*

~Katana-San~