First, recharge your myCharge until at least 1 or more of the LEDs is solid. Then connect your myCharge to your phone or tablet. Next, press (shake for the Razor & Energy Shot) the power button to initiate charging. If charging does not start automatically, make sure the charging cable is properly connected to both the myCharge and device. If all LEDs blink for 10 seconds, the device is pulling more power than the myCharge can give and you need a myCharge with a higher (2.0A) output. For more detailed instructions visit the common questions page that is specific to your model.