can you hold a photo of the person in front of the iPhone to get access?
But, but, but... iPhone X is the bestest. Its 1 mm thinner and even got a whole entire half a gram lighter
No. It only works once. If some one else tries it, they have to enter the correct passcode. Which is apparently why the onstage Apple demo did not work on the first iPhone tried - someone else had used it before the demo and the phone automatically locked.
It only recognizances a 3-D image.
“can you hold a photo of the person in front of the iPhone to get access?”
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No, you’ll have to get a Microsoft, Samsung or other Android device with “facial recognition” if you want to do that trick.
No. . . nor will a video, or a sculpture work.