iMessage unsuccessful
My imessage on my iphone wouldnt work this morning so i decided to turn it off and then to turn it back on. But now it wont activate, its just saying waiting for activation. I dont want to reset my phone, unless theres a free way of saving all of my text messages. (I DONT WANT TO DO SCREEN CAPTURES). If anyone could please help me, it would be very appreciated! Thanks
iPhone 4S, iOS 5.1.1