Nokia lumia black screen when calling

Solved: Lumia 920 screen turns dark when calling

11-21-2012, 08:54 PM #1

First of all, I like my white Lumia 920, which i ordered from ATT four days ago. I have been using it. Everything is excellent: browsing internet, camera, nokia drive, etc. until today when I was making a phone call, the screen turned dark. The call was still on, but I just could not get the screen back on. After five minutes, the other end hanged up and my screen re-appeared. It happened several times this afternoon and was very frustrating. So, I decided to exchange to another one--tomorrow is Thanksgiving and I want to make phone call!

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Nokia lumia black screen when calling

Before I went to ATT store to change my phone, I checked my phone again at home. The problem remained. However, when the sale rep asked me to show him what was the problem in store. Everything is fine--the screen did NOT turn dark. I tried several times, no problem at all. Very embarrassing. During the way back, I started to suspect that the problem is about the light or sensor because the light in ATT store is very stong while the light at my home was dark. After I got home and browsed the internet, I found many people had the same problem and they traced the problem to the Proximity sensor, the lense at the upper position of Nokia sign.

So, I did some research: when the light is dark or when I use the hand to cover the senor, the screen turns dark. This senor is supposed to turn the screen dark when you make the phone call--your face will cover the senor. I suppose it can save battery of your phone--an smart idea. But this is exactly where the problem is. My wife and I even make a movie about it and were ready to show the sale rep at ATT next time. Accidently, I used the function of camera once. After the use of the camera, the screen did NOT turn dark anymore when I made the phone calls. Please note that the front camera uses the Proximity senor.

Now, everything is fine. My guess is that the Proximity senor needs to be re-set to solve the problem. One of the ways--at least worked for me--is to use the front camera once or twice to re-set the Proximity camera. I am not sure whether this sensor thing is necessary at. At least Nokia should give us option to turn this function off. Nonetheless, Lumia 920 is a great phone and I want to see more good phones from Nokia in the future.

Nokia lumia black screen when calling

I hope you find this post useful and enjoy your Lumia 920.

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