Infrared rear camera flashing

Yes , that's draining battery life , it has to have some reason behind .... it's all the time ? Even when you leave phone facing down for 1h ?

Questionsnoabswers wrote:

Now I know that infrared light flashes are used for mapping your face

My knowledge says it is the display light which facilitates capturing FaceID in the dark.

Try to unlock your device using FaceID with a completely dimmed display in the dark, it won't work.

Good question i need to check it out , maybe is trying to detect your hand coming to pick up phone i quess or lidar is going to scan your face to help unlock faster maybe ?