Hi I have a 16GB iPhone 3G, and it won't start up. I was trying to jailbreak to iOS 4.1 using Sn0wbreeze jailbroken firmware, and then iTunes said Error 1064! Then my iPhone just went blank, and now will not turn on even when I connect it to the PC and Mains! As the iPhone cannot turn on, the computer can't recognise it, and to top it all off my Sleep button doesn't work! Btw before this it was jailbroken on 3.1.3 by Spirit. Please help! Many thanks!