I jailbroke my 2g iPod Touch about a week ago using Cyw00d's tethered jailbreak and it has been fine. Then yesterday it just turned black. i put it in DFU mode and fixed it. then when i unlocked it turned black again and it wont do anything. when i plug it in it says USB device not reconized and it wont go into DFU mode or anything. someone please help!!