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[Q] Defy+ proximity sensor issue

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Join Date: Dec 2013
Question [Q] Defy+ proximity sensor issue

My defy+ proximity sensor is not working.
As soon as I make a call, the phone screen goes black. The call goes thru fine, but the screen goes black.
No, I don''t have my finger or face near the proximity sensor.
No mods on the phone OS.

I did some debugging-
Cleaned the back of the phone by blowing air.
Tried the screw loosening like in the youtube video
Changed brightness settings from auto to manual.
Changed display turn off from 1min to never.
Finally, I downloded a sensor app and checked for change in the value of the proximity sensor when put by finger in the sensor area. The value was stuck at 3%, no matter what I did.
I was playing around and when I pressed the speaker area near the proximity sensor, the sensor value jumped to 100%
So I think the glass is blocking the sensor (or acting as a reflector).
Just to make sure the glass was the issue, I made a call by keeping the speaker area pressed. It worked as expected - no screen blanking after call. It does go black if I put my finger in the proximity sensor area.

I have no idea how to fix it.The screen & sensor need to be pressed closer.
Only thing I have tried is tighten the screws in the back. But no use.
Any help?
Junior Member
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Posts: 24
Join Date: Aug 2013
Location: New Delhi
Since you don't have mods, it's probably broken, go to customer care.
Or you can maybe try factory reset
cyrusct82's Avatar
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Join Date: Aug 2010
Location: Constanţa
Do you have a screen protector?
Out yes remove it.
If not your sensor is broken.

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