Lumia 640 XL - LTE (4G) - Unable to View Screen After phone call.

[Windows Central Question]

I purchased thephone in India on 4.Feb.2016.

Settings done are :
a. Screen to go off has been set to One Minute,
b. Battery Saver in ON (Always).

When I make or receive calls, the screen goes off, sometimes even before a minute, and after I have finished talking, the screen does not come up for me to end the call.

The Screen does not come up for view even after I press once the Screen-On button on the side of the phone.
I have to press it a Second time to view the screen.

 

[ven07]

My solution for this issue.. Press the lock button as soon as you place the call and if you need to use the screen for whatever reason, just press the lock button again. This should stop the sensor from messing up.

Hope it works for you