[kanesmith41]

Hi, just bought my son the s5 and every now and then it'll power off and back on. Everything else seems fine except that. Any suggestions would be greatly appreciated.

USMC97

[B. Diddy]

It actually powers completely off, then powers back on, going through the whole boot sequence? Or is it only the screen that turns off, then turns on again?

[kanesmith41]

It's just the screen. I did a battery pull and so far it's working fine.

USMC97

[kanesmith41]

I done that yesterday and it's only done it once so far.

USMC97

[B. Diddy]

One thing that can make the screen suddenly turn off is a magnet--if it gets close enough to the smartcover sensor (which is often located somewhere at the left bezel for a tablet, but might be in a different location for a phone), it might activate it, which causes the screen to go to sleep. This is how those smartcovers cause a device to sleep as soon as you close the cover, and to wake when you open the cover. Is it possible that there's a magnet getting too close to the phone's sensor? Is it in a case?

[kanesmith41]

Yes, it's in a otter box defender.

USMC97

[B. Diddy]

I don't know too much about Otterboxes. Could it be exerting too much pressure on the Power button at times, causing the screen to shut off?