Hello, I bought a Sony Xperia E c1505 about a week ago. There was not any problem at first but at last days there is a problem with the screen light. After I disuse the phone for many time, and when I touch the power button the light is not turning on ! I tried to shake it and I found the solution by hitting to the back side of the phone and it turns on again. This problem disturbs me. Please tell me a permanent solution to fix this trouble. Thank You
