You can try this:
Use iPod Reset Utility to fix the following issues:
* iPod will not play music, and cannot be restored using iTunes.
* iPod is not recognized by iTunes, but is visible in My Computer or in Device Manager on a Windows PC, or in Apple System Profiler on a Mac.
* iPod shuffle (1st generation) is identified as a device in "Recovery mode." iPod shuffle (2nd generation) is identified as a "USB DFU device."