light screen problem. - Galaxy S 4 Q&A, Help & Troubleshooting

Hi,
My screen is always dark with light automatic or manual... And my screen stays black during/after a call.
I have to put the light manual with high level to have a readable screen.
Which sensor is in cause? Light sensor or proximity sensor?
Thanks.

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[Q] Light sensor

Hi!
I have a Samsung B7610.
I also have O2Compass, but I didn't know that the app includes more features then just the compass - it has also metal detector, spirit level and light sensor.
All of them work except light sensor, it always show 0.
Why is that?
Hi,
The metal detector is a trick from compass.
For the light sensor, check in your settings if you did not set the screen light to a manual value.
You're right, I did have screen brightness to manual, however I did set it to Automatic, but still the light sensor shows 0 lux, I tried to use *#0*# Light Sensor Test, but it shows light presence.

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That should be handled by the light sensor. In my case, the lights are off when there's light in the room, or I'm outside, and are on when there's not much ambient light.

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I have problem with my light sensor on P8. Time to time, when I've light my display it doesn't switch automatic brightness, stay on minimum illumination. Wen I turn off display and light up again, there is normal brightness??? Does someone know what can be done?

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Ansar:
I m using maxpro m2 4gb varient.Recently, my phone has been having a problem with the proximity sensor during calls. When I finish a call, or want to look at my screen, the screen does not turn on by itself so I need to put my finger at proximity sensor then screen to light up or else the screen still goes black. This is very annoying! When i turn off ADAPTIVE BRIGHTNESS feature in Display options my problem resolved.what is this problem?? Am i only facing??
I also tested my sensors it is working and also my display is not covered with tampered glass etc..

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