After charging for at least an hour I would try in order:
- Resetting the iPod:
Press and hold the On/Off Sleep/Wake button and the Home
button at the same time for at least ten seconds, until the Apple logo appears.
- Next try restoring the iPod via iTunes. You may have to place the iPod in recovery mode for iTunes to see the iPod. For recovery mode see:
- Making an appointment at the Genius Bar of an Apple store