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Apple Face ID: what is it and how does it work?

How your iPhone or iPad knows what your face looks like - here's the ultimate guide to Apple's face recognition tech ...

I used 14 secret codes to unlock menus of settings on my iPhone and Android - how it works

ZDNET's key takeaways Use these codes to forward calls, pay your bill, check balances, etc.Some of the codes work only on certain carriers or devices.One of the codes also might erase your data, so ...