iphone4
my iphone4 just shut off and when i go to plug it in it turn on to a screen that says IOS. Once i slide to unlock, it shows a gray screen saying that i need to plug into itunes. If i plug it into itunes, it just hows the apple, like when you turn on your phone, several times, Please answer!!!!!! i need help!!!!!!
iPhone 4, iOS 6.1.3