Sony NW-ZX2 Manual page 157

[138] Troubleshooting
The computer does not recognize your Walkman.
[139] Troubleshooting
The computer does not recognize a microSD card inserted
in your Walkman.
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Q&A
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.
Use the supplied USB cable.
Your Walkman may not be recognized if connected via a USB hub. Connect the
Walkman directly to the USB connector on your computer.
Make sure that the USB connection is not turned off. Swipe the status bar down
and then tap [Turn on USB storage] on the notification panel followed by [Turn on
USB storage] then [OK].
If the approaches listed above fail to resolve the issue, press and hold the
button for about 8 seconds to reset your Walkman, and then try the USB
connection again.
Q&A
Connection to a Computer
Connection to a Computer