Hi there, I was trying to unlock a friends iPhone 3GS we managed to jailbreak and install cydia. Tried to unlock it by installing Ultrasn0w and when it asked to restart it got stuck at the apple logo. I then googled the stuck at apple logo issue, and attempted to do a restore. This failed and now the image of connect to itunes keeps coming up on the phone when i switch it on, plus windows cant recognize the device anymore. Its an iPhone 3GS with firmware 4.2.1 and baseband 6.15. How do i fix this? Thanks in advance!