I bought a galaxy s4 last week, but it keeps turning off by itself. Need help please?

[AC Question]

I bought a galaxy s4 last week, but it keeps turning off by itself.Need help please? Is there any app that i can use to fix it or is there something that i should do with the battery or something?

 

[belodion]

It may be a loose connection related to the power button or the battery, or it may be that the battery is failing.

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