- Your battery may have gone flat. Please charge your player using the USB cable provided. * Check if your headphone plug has been inserted into the headphone jack of the unit completely * When you press the Play/Stop button, make sure that it is pressed and held for long enough until the display light up * Check if the volume is at an audible level. Increase the volume using the VOLUME + button. * If your player is in pause mode, press the button to resume playback If nothing works, recover your player as follows: