on off problem

[newoo]

was using my i phone 4 and suddenly it turned off and that's it I pluged in but nothing cause I thougt it was the battery but nothing could you help me?

 

[Thomasjtsi]

Jailbroken, iOS version, what were you doing when it turned off, last things downloaded and/or installed?

 

[eddieg]

Hard reset.

 

[newoo]

Jailbroken, iOS version, what were you doing when it turned off, last things downloaded and/or installed?

Was talking by phone and that's it, lately I just installed an upgrade for the ios