Hi there,

After Jailbreaking my iPhone 3GS 4.2.1 with greenpois0n I installed Cydia and downloaded a Siri GUI, after Cydia installed Siri the iPhone did a re-boot then the touch screen stopped responding completely, now I can't get past the lock screen. I put my iphone into DFU to run the jailbreak again but the touch screen still doesn't work and now I cannot restore the device through iTunes becuase my computer is not connecting to the iPhone.

What can I do to? Thanks for any help.