[Noel Tony]

Over a month my Samsung A5 have been having repetitive black screens. I tried doing a reset of the phone but still not working. All the keys and buttons are working and so is the sound but the screen doesn't turn on. Occasionally i try to repeat pressing the power button and the home button one by one in sequence and works but turns off after another 5 - 10 minutes.

I also forgot i updated my software too to android 5.0 then only this has been happening...