Try plugging it in with a firewire to 30pin connecter, those things have brought back countless iPods from the dead
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Try plugging it in with a [link|https://www.ebay.ca/itm/113045557878?hash=item1a520a5276:g:H2EAAOSwBeJbdGBV|firewire to 30pin connecter], those things have brought back countless iPods from the dead