Originally Posted by
Creeto If you lock and unlock for a bit does it brighten then go back dim after a bit? Or always dim?
The problem phone is the one on the right. It is always at full brightness.
Originally Posted by
Prakeern98_lumia520 Try to clear any dust in front of the sensor.
Maybe works.
The phone is pristine. And dust on the sensor wouldn't explain why the lighting is totally uneven. Look at the sky on the phone on the right.
Disturbingly the phone is running warm. It is noticeably warmer than the phone on the left.