zguby, I think admin and tadad1 are right. You have to set the button to ON for a nano clone. If you are using the Power adaptor check to see the charging lights. Mine has to leds one green and the other red. The red displays power is on, and the green that the Nano is charging.
Also sometimes the USB cable doesn't is a bit faulty like I have to bend it a bit so that a proper connection is established. Also some players take quite a while to charge. Mine takes somewhere around 2-3 hours and I've found out that it charges faster on the power adaptor than on the PC.
