Proximity sensor isn't working properly
I'm 100% stock. Android: 4.4, Sense: 5.5. Software number: 4.06.1540.3.
During the call either the screen remain on -no matter how I cover the proximity sensor, or it remain off -even if the phone in my hands. I tried using the "Calibrate G Sensor" option, it works sometimes for one call and then back again.
How can I fix this? I remember using an app years ago with an old phone that had better calibration and it worked.
I'd appreciate any help. Thanks in advance!