- Try another cable. ( do no know what yo meant by "charger", cable or charging source)
- Try another charging source
- Inspect the dock connector on the iPod for bent or missing contacts, foreign material, corroded contacts, broken, missing or cracked plastic.
- Make an appointment at the Genius Bar of an Apple store.
Apple will exchange your iPod for a refurbished one $199 for 64 GB one and $99 for the others.. They do not fix yours.