Samsung phone screen doesn't turn off or on during calls

If you are holding the phone to your ear while on a call, the screen will turn off to prevent unintentional touches. A white light will blink at the top of the screen when the proximity sensor is active.

Turn on Accidental touch protection Since you probably keep your phone in your pocket or bag most of the time, you should turn on Accidental touch protection. This will prevent any accidental screen touches while your phone’s stashed away. From Settings, search for and select Accidental touch protection. Tap the switch next to Accidental touch prot

Accidentally calling someone or sending a message full of gibberish when your phone is in your pocket or bag can be embarrassing. Luckily, your Galaxy phone has a feature that prevents pocket dials. It’s called Accidental touch protection, and it keeps your screen inactive when the phone is in a dark place so no phone calls or messages are inadve

There are two main types of networks your phone carrier might use. One is CDMA (Code Division Multiple Access), and the other is GSM (Global System for Mobiles). Depending on which one you have, it can affect when you can use data.

There are several reasons why your phone screen may turn on, even if you didn't press the Power key or Side key. Some features that make the phone easier to wake up, may also cause the screen to turn on unexpectedly. Follow this guide to prevent your phone screen from turning on by itself.