It happens with all m series phones. Parts used in these phones are really low quality. I faced this issue with M30. I removed the tempered glass and reinstalled it again so that the top bezel and the glass edge are aligned. Then it started working.
Be rest assured by following the given steps your issue will be resolved:- 1) Check device in safe mode :- Steps to enter into Safe Mode:- Press and hold the Power key, when Power off icon appears > hold power off icon. Exit safe Mode:- Restart device. Note:- If your device functions correctly in Safe Mode, it is most likely that the issue lies with a 3rd party application that can be uninstalled to resolve the problem.
3) Reset the device :- Setting > General Management > Reset settings. Note :- Kindly create data backup of your device via SMART switch mobile application.
If issue still persist or for further assistance, kindly register your concern in Samsung members app (Samsung Member > Get help > send feedback > Ask question/Error report)
while receive a call and device at ear screen goes off its fine, but while we complete our Talks and device remove from ear it continue screen black / off and we are not able to end call, on screen button,
i tried *#77692# and getting 2 sensors one of them is proximity sensor and other Light sensor,
i was off proximity sensor and observed behavior of screen off after complete call, but it is same as before,
now i just wish to ON my proximity sensor again, and tried to dial *#77692# but i am shocked to appear only light sensor and proximity sensor option not appear on screen as before to off it,
i just wish to appear for my control PROXIMITY SENSOR OPTION WHILE I DIAL *#77692#
