IMPORTANT: This file is only for use with the models identified. Not all models are sold in all countries.

This information is for the following models:

  • NWZ-W273

About this download

Benefits and improvements

This utility updates the Walkman® player to firmware version 1.10 to provide support for the M3U (.m3u file extension) playlist format used to store multimedia playlists.

System Requirements

Operating Systems

  • Windows Vista®
  • Windows Vista® 64-bit
  • Windows® 7
  • Windows® 7 64-bit
  • Windows® 8
  • Windows® 8 64-bit
  • Windows® XP

File Info

File Name

  • NWZ-W270_V1_10.exe

File Version

  • 1.10

File Size

  • 16.30 MB

Release Date

  • 09-25-2013

Before You Start


Applicable Models

This firmware update is intended for the NWZ-W273 Walkman® players that have firmware version 1.00 installed. To check the model and firmware version of your player, please follow the steps below.

Note: This update is not necessary if your Walkman player has already been updated by the automatic firmware update function to version 1.10.

  1. Connect the Walkman player to your computer using the supplied USB cradle.
  2. On your computer, navigate to the "WALKMAN" folder.
  3. Locate and open the "information.txt" file to display the Walkman player model name, memory capacity, and the firmware version.

If the version number is 1.10 or higher, this update utility is not necessary.


Important Notes
  • It is strongly recommended that you transfer all tracks and data from the player to the computer before performing this update. Tracks and data that remain on the player may be damaged or deleted during the update process.
  • In order to install this update, there must be at least 50 MB of free space on the player.
    Please follow the steps below to check the amount of free space on the player:
    1. Connect the Walkman player to your computer using the supplied USB cradle.
    2. On your computer, navigate to the "WALKMAN" folder.
    3. Locate and open the "information.txt" file to display the Walkman player memory capacity. Ensure that at least 50 MB of free space is available. You may need to delete some songs, unnecessary data, or transfer some data or songs back to the computer to increase free space.
  • During the installation of this file, be sure that you are logged in as the Administrator or as a user with Administrative rights.
  • If you are using Windows 8, Windows 7 or Vista operating system, a User Account Control dialog box may be displayed. Click "Continue" or "Yes" to proceed.
  • To ensure that no other program interferes with the installation, save all work and close all other programs. The Taskbar should be clear of applications before proceeding.
  • It is highly recommended that you print out these instructions for use as a reference during the installation process.

Download & Install


Computer System Requirements

  • One of the following Microsoft® Windows® operating systems:
    • Windows 8
    • Windows 8 Pro
    • Windows 7 Ultimate
    • Windows 7 Business
    • Windows 7 Home Premium
    • Windows 7 Home Basic
    • Windows Vista® Home Basic (with Service Pack 2 or later)
    • Windows Vista Home Premium (with Service Pack 2 or later)
    • Windows Vista Business (with Service Pack 2 or later)
    • Windows Vista Ultimate (with Service Pack 2 or later)
    • Windows XP Home Edition (with Service Pack 3 or later)
    • Windows XP Professional (with Service Pack 3 or later)

    Note: 64 Bit versions of Windows XP operating system are not supported.

  • CPU: 1 GHz or higher
  • Memory (RAM): 32-bit (1 GB or more) Windows 8 64-bit (2 GB or more)

Download and Installation Instructions

  1. It is strongly recommended that you transfer all tracks and data from the player to the computer before performing this update. Tracks and data that remain on the player may be damaged or deleted during the update process.
  2. To ensure that no other program interferes with the installation on the computer, save all work and close all other programs. The Taskbar should be clear of applications before proceeding.
  3. Click "Download Now" to begin the download process.
  4. Read the Software Download License Agreement and, if you agree, click "Accept Agreement".
  5. Download the NWZ-W270_V1_10.exe file to a temporary or download directory (please note this directory for reference).
  6. Connect your Walkman player to your computer using the supplied USB cradle.
  7. Go to the directory where the file was downloaded and double-click the NWZ-W270_V1_10.exe file to begin the installation.
  8. Carefully follow the on-screen prompts to complete the installation.
    IMPORTANT: Do not disconnect the player from the computer while the update is in progress.
    Note: During the update process the USB connection is automatically controlled and the "Connecting" indication is off. The USB disconnect message may be displayed on the computer. This is normal.
  9. When the update complete message is displayed, click the "Finish" button.
  10. Disconnect the Walkman player from the USB cradle once the update is complete.
    Note: If you transfer a playlist after performing the update without first disconnecting the USB cradle, the playlist may become invalid. If your playlist becomes invalid, delete the playlist and perform the transfer again.
Confirm Successful Update (optional)
  1. Connect the Walkman player to your computer using the supplied USB cradle.
  2. On your computer, navigate to the "WALKMAN" folder.
  3. Locate and open the "information.txt" file.
  4. If the version number is 1.10, the update is successfully installed.

Questions & Answers


Possible Error During Update

ERROR: The update data file cannot be transferred because there is not enough available space in the device. RESOLUTION: Click "Finish" and retry the update procedure.
Note: Ensure that at least 50 MB of free space is available on the Walkman player. You may need to delete some songs, unnecessary data, or transfer some data or songs back to the computer to increase free space.