Before attempting an update, you must check which version your device is currently running. This prevents you from unnecessarily reinstalling the same software.
There is no official or functional firmware update available to add new features to the Sony Walkman NWZ-B172F walkman nwz-b172f firmware update
The NWZ-B172F was designed in an era where Windows was the dominant platform for media devices. Before attempting an update, you must check which