Sony Walkman NWZ-F804 Help Manual page 124

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NWZ-F804/F805/F806
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Troubleshooting
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Your Walkman cannot charge the battery.
The USB cable is not connected to a USB connector on your computer properly.
Disconnect the USB cable, and then reconnect it.
Use the supplied USB cable.
The battery is charged outside the temperature range of 5 °C to 35 °C.
Charge the battery in a temperature range of 5 °C to 35 °C.
The computer is not on.
Turn on the computer.
Your computer is in standby (sleep) or hibernation mode.
Exit from standby (sleep) or hibernation mode.
An AC adapter not compatible with your Walkman is being used.
Use an AC adapter (not supplied) compatible with your Walkman.
A USB hub is being used.
Your Walkman may not charge via a USB hub. Connect the Walkman directly to the
computer's USB port.
Your Walkman is connected to a computer running an operating system that is not
Contents list
supported.
Check the system requirements of your computer, and charge with a computer
running an operating system that is supported.
You have not used your Walkman for more than a year.
Depending on the conditions under which your Walkman is used, the battery may be
deteriorated. Consult your nearest Sony dealer.
If the problem still persists after performing the remedies above, press the RESET button
to reset your Walkman. [Details]
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