These are some common tools used to work on this device. You might not need every tool for every procedure.
A1199 2GB, A1199 4GB, A1199 8GB
Track down a number of hardware problems using the iPod Nano 2nd Generation Troubleshooting Guide.
Identification and Background
Released in September 2006, the second iPod nano was the first nano to receive an anodized aluminum case offered in various shades of color. It came in 2, 4, and 8 GB versions and is slightly thinner than the first generation nano.
Use the iPod identification system to help you identify your iPod. They tend to look very similar, and it's important to know which one you have before ordering any replacement parts.