I recently purchased a second hand iPod classic, after restoring it to its factory settings my computer cannot find the device when I connect it to my computer. Also the iPod, although it has full charge of battery, comes up with a symbol as if it needs to be charged? Have I ruined the iPod by restoring it? Is it too old to do anything about? It must be one of the early iPods as it's quite chunky. I would appreciate some advice please? Many thanks