My ip4 is running 5.1.1. It has started to act really buggy and laggy. So I am wanting to restore and then rejailbreak. But I cant restore. I have tried every way that I can think of and I have even googled ways. If i click restore in settings it just spins, if I try it through itunes i get an error, Ive tried tu. Does anyone know a way that I can use?