ok so stupidly i installed iOS 7 on my phone as a beta and i am not a developer, i know i souldnt have but i couldnt wait to have it, now that iOS is fully released i decided to do a clean install, so I restored my iPhone and now i can't install iOS7 the phone wont activate so i cant even get past the introduction screen, is there any way to fix this or have i screwed my phone?