1) Try to use a different USB cable....believe it or not, but a lot of USB cables are just not working.
2) Try a different USB port on your Laptop/PC
3) Once you power up the WooKong and than connect it to the USB port (under Windows) you should hear a sound (make sure your speakers are on). You also should be able to see any attached hardware via USB in your Windows device manager. Open your device manager and watch if the device manager "refreshes" once you plug in the WooKong. If you can mange to see your devicet, than you either get a message that the driver is not installed correctly (than install driver package), or it's just working. If you cant't get to the point that you hear a sound by plugging the WK, the problem is most likely your PC.
I had once connected my Wookong to a wrong-soldered LiPo which created a quick short. Everything looked fine afterwards, but it looked like I had fried something inside the Flight Control Unit......could connect it to the PC, got the sound but always got the message that the device was not recognized.....so even a faulty unit should connect to the PC (exept it's completely dead.
4) If all doesn't help, call the Ghost-Busters.....:tennis:
Chris