I have an iPad with os ver. 3.2 i'm trying to upgrade the firmware and jailbreak. After doing some research i think that 4.3.3 is the best choice. I downloaded the firmware and went through the process of restoring with mac (pawnage and tiny umbrella) and when i tried to restore in iTunes i keep getting error 3604 and it doesn't work. So i went to my pc and used snow breeze and still get the same error. How do i upgrade to a firmware i can jailbreak and which firmware is the best choice????