Hello my samsung s4 turns off it self how can i fix that

[AC Question]

even i tried to restart with volume down button it no helps. First it was turning off when i entered to applications. But now i can't even turn on my phone because it turns off when i am turning on my phone

 

[belodion]

Is the battery good?

 

[briley92691]

I having the same problem, started last week. Did you install any new apps?