Why does my iPhone 4S suddenly go to a black screen with apple logo?

[iMore Question]

I will be using my phone when it suddenly switches to a black screen with the apple logo. When I press the home button I am brought back to the start up screen, which I need to swipe to get back to the home screen. I get back into the app, and within about 3 minutes, it happens all over again. Help!

 

[kch50428]

Re: Why does my iPhone 4s suddenly go to a black screen with apple logo?

Connect to iTunes an restore the iOS.