Hey, I was using a jailbroken iPod Touch running on 1.1.4 and I decided to update to 2.0 using Pwnage Tool on a mac. iTunes was saying it was updating and everything, and when it was finish, it turned itself off like normal. A few seconds later, it turned itself back on, but starts restart. I only see the booting logo in 4 sec before it restart again. And it hasn't stopped restarting. iTunes does have enough time to recognize it and I can't turn it off or start DFU mode. What can I do?