Skip to Content

Applicable Models

This information is for the following models:
  • NW-A25/A25HN
  • NW-A26/A26HN
  • NW-A27/A27HN

About this download

  • Name: Firmware update 1.11 for NW-A25(HN)/NW-A26(HN)/NW-A27(HN)
  • Date released: 05-11-2015
  • Do I need to download it?
    This update utility is not necessary if your Walkman has already been updated to firmware version 1.11 by the automatic firmware update function.
    If you're not sure, it's easy to check which version of firmware you have:
    1. Press and hold the BACK/HOME button until the Home menu appears
    2. Select [Settings], [Common Settings], and [Unit Information].
    3. Confirm the Model number and firmware version
  • Benefits and improvements:
    • Addressed the issue where the WALKMAN may not display some cover art
    • Addressed the issue where the WALKMAN may not properly operate during play back or may restart unintentionally

System Requirements

Operating Systems

The latest version of the firmware update is compatible with most commonly used versions of Microsoft Windows:

  • Windows 10 / Windows 10 Pro
  • Windows 8.1 / Windows 8.1 Pro
  • Windows 8 / Windows 8 Pro
  • Windows 7 Ultimate (Service Pack 1 or later)
  • Windows 7 Professional (Service Pack 1 or later)
  • Windows 7 Home Premium (Service Pack 1 or later)
  • Windows 7 Home Basic (Service Pack 1 or later)
  • Windows 7 Starter (Service Pack 1 or later)
  • Windows Vista Ultimate (Service Pack 2 or later)
  • Windows Vista Business (Service Pack 2 or later)
  • Windows Vista Home Premium (Service Pack 2 or later)
  • Windows Vista Home Basic (Service Pack 2 or later)

Computer hardware

The latest version of the firmware update is compatible with the following hardware:

  • CPU:
    • 1 GHz or more
  • Memory:
    • 1 GB or more (32bit) / 2 GB or more (64bit)

Download

Before you update

After updating, the firmware cannot be reinstated an earlier version.

Please transfer all data from the unit to the computer in advance, since the data may be lost when upgrading as they are remained on the unit.
We cannot guarantee in case the tracks and the data are damaged or deleted by this update.

When upgrading, the unit is needed to have a free space about 85 MB. Please confirm the size from the steps below.

  1. Press and hold the BACK/HOME button until the Home menu appears.
  2. Select [Settings], [Common Settings], and [Unit Information].
  3. Confirm the “Free/Total Memory Space”.

Select "System Storage" as location for USB Transfer.

  1. Press and hold the BACK/HOME button until the Home menu appears.
  2. Select (SD Card Settings), [Storage for File Transfer], [Location for USB Transfer].
  3. Set to [System Storage].

Install

Make sure to logon as Administrator to your computer

If you are Windows 10 user, Windows 8 user, Windows 7 user or Windows Vista user, “Windows needs your permission to continue” message appears in the User Account Control dialog box. Click [Continue] to proceed, and follow the announcements.

  1. The update program download is started by clicking “Download” button on the bottom of this announcement.
  2. After completion of the download, connect your Walkman to your computer by USB connection.
  3. Quit all software running on your computer
  4. Double click the saved file (NW-A20_V1_11.exe, 58.2 MB / 61,083,560 bytes), and work by following displayed massages.
      Please do not disconnect the unit from the computer during upgrading.
      During updating, USB connection is automatically controlled and “Connecting USB” indication is off with the control.
      Also, the USB disconnect message may appear on some computers.
  5. When the message of completing upgrading is displayed, click [Finish] button.