I was just downloading appcake from cydia (im jailbroken) and then when i clicked the return to spring board i got stuck on the frozen spinning circle! Its not spinning though its just stuck. The back drop of the wheel is black when the background should be white. I don't kow how to fix it and I don't want to spend money all because of that one download from cydia. All the screens it shows are the apple logo, frozen circle, and low battery. I tried hard reseting, regular reseting but they all lead back to the same frozen circle.