Sony Walkman NWZ-ZX1 Help Manual page 29

Noise is generated.
Volume cannot be turned up, or the volume remains low when the playback volume is turned up.
Sound can only be heard from one side of the headphones.
Sound is interrupted or skips.
Power
Cannot charge the "WALKMAN."
I want to know the battery life of the built-in rechargeable battery.
The rechargeable battery needs to be replaced.
The battery duration is short.
I want to know the battery duration.
I want to know the charging time.
Connection to a Computer
The computer does not recognize your "WALKMAN."
Cannot install software to your computer.
The progress bar on the install screen does not proceed while installing the software. Or, the access lamp of the hard drive
does not light for several minutes.
Media Go does not start.
Your "WALKMAN" is not recognized by Media Go.
Data cannot be transferred from the computer to your "WALKMAN."
Only a small amount of data can be transferred to your "WALKMAN" (only a small amount of recording time available).
Your "WALKMAN" becomes unstable while it is connected to the computer.
Bluetooth
Cannot pair with a Bluetooth device (cannot register the device).
Cannot connect using the Bluetooth function.
The screen to enter the passkey appears when a Bluetooth connection is made.
Cannot hear sound from the connected Bluetooth audio device.
Cannot change the volume when a Bluetooth connection is made.
Sound is distorted or broken when a Bluetooth connection is made.
Sound enhancements are disabled when a device is connected by Bluetooth.
Noise is generated when a Bluetooth connection is made.
Video sound is delayed when a Bluetooth connection is made.
NFC
Cannot listen to music with one-touch.
Wi-Fi
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