: Scroll down to the bottom of the sub-menu and click on Unit Information .
Select to display the current firmware on the screen. 2. Official Maintenance Methods sony walkman nwz-b183f firmware update
directly into your computer's USB port. Avoid multi-port USB hubs, extension cords, or keyboard pass-through ports, which can drop data connections. Step 3: Downloading and Running the Firmware Update Method A: Using Official Sony Regional Support : Scroll down to the bottom of the