It will not power on, I plugged it into the computer, doesn't recognize it to charge the mp3 player. Even tried charging it with a dock and with another charger to no luck.

To charge the battery using your computer:
Connect iPod shuffle to a high-power USB port on your computer using the included iPod shuffle Dock. The computer must be turned on and not in sleep mode (some models of Macintosh can charge iPod shuffle while in sleep mode). When the battery is charging, the status light on iPod shuffle is orange. When the battery is fully charged, the status light turns green.
If you don't see the status light, iPod shuffle might not be connected to a high-power USB port. Try another USB port on your computer.

To charge the battery using an iPod USB Power Adapter If you do not have then you have to buy the same from Apple Store) 1 Connect the AC plug adapter to the power adapter (they might already be connected). 2 Plug the USB connector of the iPod shuffle Dock into the power adapter. 3 Plug the power adapter into a working electrical outlet. 4 Put iPod shuffle in the dock. You can disconnect and use iPod shuffle before it is fully charged.

You need to reset your ipod and then restore it. Try this.

http://www.fixya.com/support/r8645826-ipod_nano_video_touch_resetting

There may not be enough power from the docking station to power the nano. There are also rare times when it wont charge because the ipod doesn't recognize it and wont charge to protect itself. Try plugging it in directly into your laptop if possible.

Hold down the play pause button for 30 seconds to reset the ipod.

Have you tried to reset? The reset button is right by the lock switch. It's small so use a pin or something small like that.

Try going to the control panel - hardware and delete
the Zen [ make sure your Zen is unpluged ] once delete
plug your Zen back in and see if this does the trick

Doc
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Disabled it under device manager! So that it still draws power from the USB port without attempting to pair with the computer.

www.maplin.com has a DIY battery replacement kit.

I had that problem one time and the only way to get rid of that icon was to plug it into my Bose sound dock. You could also try another brand of sound dock to see if it works. Good luck

wiggle your usb cord - I had to wiggle mine a bit where it plugs into the usb port in the computer before it was recognized and listed as a device in 'my computer'. only then did it actually start charging; if your computer is not recognizing it is plugged in, it may not charge.. when i finally figured this out, the actual charging of my 4 gig audiophase mps only took 10 minutes- previously i was trying to charge it for hours without any luck.