My ipad 1 is on 5.1.1, I updated the cydia files and now it wont open so I tried to do a restore DFU mode by installing the same firmware. I tried several times but iTunes wont recongnize my ipad at all, it says cant found ipad. My usb cable is fine because I tested it with my iphone and itunes opened up. Is there anything else I could try before calling it quits? thanks