I have an ipod touch 4th gen on a tethered ios 6.0.1 jailbreak with sn0wbreeze. My ipod went flat so I charged it. It's been charging for about an hour now and it won't turn on it just shows the red battery charging. I tried to boot tethered and put it in DFU and it won't work. It doesn't show up on itunes either. Any help?