How do I lock my screen when I answer the phone?

[AC Question]

I can't seem to figure out how to lock my screen when I answer my phone so my cheek isn't constantly hitting the buttons. It's a Samsung Note 4. It doesn't always do this it's pretty random.

 

[nahoku]

There's no setting for this. The proximity sensor located near the top of the phone senses when the phone is near your ear/head while on a call. Sometimes the sensor goes bad, but it could also be the phone is dirty/grimy in that area, or hair might be getting in the way. Always make sure the phone is held close to your ear while you're talking.

 

[zocster]

Yeah my note 4 don't do that..