I was on safari on my iphone 4, and it froze, pressing the home button or turn off button did nothing so I held them together to reboot, and now it is stuck on the apple logo, I've tried it again and not working, tried connecting it to my laptop and itunes doesnt recognise my iphone it hasnt popped up in the side bar or anything. I dont know what to do! help! I need it urgently because my dad is in hospital, so essential in communication at the moment.