Dears, My iPhone 12 Pro Max, Suddenly Face ID is not working, I have tried all the ways to fix it but to no avail. And FYI, my phone is still in warranty. What I can do? Best, Ayman,

Hi Ayman,

Welcome to the Apple Community.

Did you try Step 9 in the article ?

says: If you still can't enroll your face, take your device to an Apple Retail Store

or Apple Authorized Service Provider or contact Apple Support.

There is a also a "Get Support" link to Apple at top right on this discussion page.

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Options:

Visit an Apple Store, 

a Genius Bar reservation is recommended:

https://www.apple.com/retail/geniusbar/

or

From iOS device use the app to make a online Genius Bar appointment: 

https://itunes.apple.com/us/app/apple-support/id1130498044?mt=8

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OR

See a list of Apple phone numbers around the world.

https://support.apple.com/en-us/HT201232

If your country is not listed: 

Apple Assistance:

Choose your country or region:

https://support.apple.com/choose-country-region

All the best :-)