Use of Proximity sensor in Samsung Galaxy Note2(GT-N7100)
Last Update date : Oct 13. 2020
A Proximity sensor in Samsung Smartphones is a sensor capable of detecting the presence of nearby objects without any physical contact. It enables your mobile to switch off lights during calls. It is located near the earpiece at the top of the phone.
It helps to save battery. It actually detects the distance to surfaces.
Furthermore you can know How to disable proximity sensor in your mobile
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