I was upgrading my currently jailbroken an unlocked iphone 4 firmware to 4.1 with the Pwnage Tool that the Dev Team just released and everything was going good until it finished installing the firmware. It said iTunes has finished upgrading your device please wait for your device to turned back on. When the phone turned back on it stayed on the Apple Logo screen and I can't get it to change. I tried putting it in DFU mode and reinstalling the firmware but it gives me a (3002) error! Any advise on what I can do? 