Hello, I need some help here if you folks don't mind. I have an iPhone 3GS running 3.1.2. I jailbroke the phone with Blackra1n and it worked perfectly. Downloaded Cydia and Rock from the Blackra1n app. Those worked fine. Well, then I decided to install Sn0w and it installed and went back to my springboard but could not find service. So.... I restarted the phone and now, it's just the black screen with the silver apple and it won't do anything else. Tried plugging it back into the computer and the computer doesnt even recognize that the iPhone is plugged into it. I have done a soft reboot and it's still the same thing. Anyway, PLEASE help me! Thank you so much!