Last updated: October 2023. Sony has confirmed End-of-Life (EOL) status for the NWZ-B180 series. No further maintenance updates will be released.
Often provides the most comprehensive legacy downloads for this specific model. sony walkman nwz-b183f firmware update
If it says , you have the launch version. If it says 1.10 , you have the updated version (congratulations, you are already current). Last updated: October 2023