Why does my Galaxy S4 screen turn off?

Liko Kim

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Apr 18, 2015
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Galaxy S4 Screen turning off

Hi, it's been almost two years since I got this phone. I changed the LCD probably 2 times because I dropped my phone so many times. Recently, when I turn on any apps that uses data (Such as facebook, youtubes and playstores) or when T-mobile logo comes out when I first turn on my phone, the screen just goes off but I still can turn it back on. I always have to press home button to get out of that app otherwise the screen gets turned off again. I already tried hard reset but i couldn't see any luck.
Please help me guys, this is just making my phone useless. I am sorry for bad english. English is my second language.
 
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