Face recognition is a really handy feature of the iPhone X. But Face ID does not always recognize its owner. Situation: put the iPhone on the table, hands are busy, but you need to read the notification received. In this case, the smartphone is turned away from you and lies, as it were, “upside down.”
In iOS 12, the developers improved the Face ID recognition algorithm. Now, unlocking the iPhone X with a TrueDepth scanner can be done by two people.
One of the users of Reddit took this fact into service and decided the very problem of “flip-flop”.
The guy added two snapshots of the face in the Face ID menu: normal and inverted 180 degrees. Now the iPhone X can be unlocked from almost any position.