I have an ipod touch 2g stuck on apple logo. It was jailbroken and i wanted to restore it to factory settings and all so i pressed "reset all". Well it just got stuck on the apple logo screen, its been on there for days, the battery died and I charged it for a while then the apple logo pops up again and just stays there.

It wont turn off if i hold down the power and home and so i cant get it to enter dfu mode??? Im wondering what to do from here. I have held the power and home button down for more then 3 minutes so i dont think i didnt hold it down long enough.
Any help would be much appreciated