If the remaining battery power is low, charge the battery.

When you use your Walkman for the first time, or if you have not used the Walkman for a long time, it may take a few minutes to be recognized by the computer. Check that the computer recognizes the Walkman after you have connected it to the computer for about 10 minutes.

Make sure that the USB connection to the computer is made properly and securely.

Your Walkman may not be recognized if connected via a USB hub. Connect the Walkman directly to the USB connector on your computer.

If the approaches listed above fail to resolve the issue, press the RESET button with a pen or a paper clip, etc. to reset your Walkman then try the USB connection again.