Hey Guys-I'm new at this so I did the jailbreak on my 4S(Iphone) anyway I went to uninstall a program and now the cydia icon is gone and I'm trying to get it back. I tried running the greenp0ision jailbreak again abut I get an error code telling me the phone is already jailbroken. I'd judt like to reinstall cydia so I can get the icon back. Can someone please help me.