about an hour ago my i-phone 4 started vibering and the screen is all black-i tried to switch it off but its not working...please help as soon as possible cause i;m on a trip and really need it
about an hour ago my i-phone 4 started vibering and the screen is all black-i tried to switch it off but its not working...please help as soon as possible cause i;m on a trip and really need it
Like they have said in the post before me, try doing the hard reset and if this doesnt help and the phone is new enough you might want to return it for a new one.