[Abdul Quddus1]

My proximity sensor in my L820 doesnot work often . The light doesn't go off while on call which annoys me a lot . It again works only when i restart my phone. Again after few calls it doesn't work . Is the same thing happening to u also guys . Plz reply .

[alv3st3r]

The light doesn't go off while on call which annoys me a lot .

The light is NOT supposed to go off when you're on call. Its purpose is to turn the screen off when you bring the phone close to your ear.

[pankaj981]

By light, I believe he meant the screen backlight turning off. To the OP: do you have a screen protector which might be causing this?

[alv3st3r]

By light, I believe he meant the screen backlight turning off.

Well in that case, nevermind then.

[edwardtkl]

This problem happened to my 820 before, the problem is that there are too much dust in front of the proximity sensor.
I disassembled my 820 and clear up the dust to get the problem solved.