Whenever i try to jailbreak my iphone 4 with 5.0.1 it just hangs at waiting for reboot, i tried using all the tip everyone else suggested, pointing towards the ipsw, trying different computer, trying different usb port. I don't think im doing anything wrong becuase i did the exact same thing with my ipod touch with the same stats and it worked flawlessly. ANd with my other iphone i jailbroke it tethered because it had 5.0 firmware, so i tried to restore and update so i can do it untethered, but cydia is still there, it just won't work, and it didn't update, what should i do for either of my problems? i'm pretty desperate.