Sony Overseas Models Support & Information

NW-A25 Firmware Update Program Download Service

Oct./22/2015

Sony Corporation
Sony Marketing (Japan) Inc.
Sony Customer Service (Japan) Inc.

For owners of Walkman A series, we offer NW-A25 firmware update program to the latest version 1.10.
Please read carefully the following instructions.

[Contents of the update]

A menu to exclusively display high resolution content is added.

[Applicable Models]

NW-A25 that have firmware version lower than 1.10.

[How to confirm the Model and the Firmware version]

Please confirm the Model and the Firmware version from the steps below.

  • Press and hold the BACK/HOME button until the Home menu appears.
  • Select up-down (Settings), [Common Settings], and [Unit Information].

Confirm the Model and the Firmware version.

[Target PC environments]
* OS

- Windows 10 Home / 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)
- Mac OS X v10.6 - v10.10

* Hardware requirements

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

[Important Notes]

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

Please backup all data from the unit to the computer in advance, since the data may be lost when updating 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 updating, the unit is needed to have a free space about 85 MB. Please confirm the size from the steps below.

  • Press and hold the BACK/HOME button until the Home menu appears.
  • Select up-down (Settings), [Common Settings], and [Unit Information].
Confirm the “Free/Total Memory Space”. And, please select [Location for USB Transfer] to [System Storage].
  • Press and hold the BACK/HOME button until the Home menu appears.
  • Select SD Card (SD Card Settings), [Storage for File Transfer], [Location for USB Transfer].
  • Set to [System Storage].

When downloading the program and updating the firmware, log on to the computer with the administrator name or with any name which belongs to the administrator.

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.

[Update procedure]

  • The update program download is started by clicking “Download” button on the bottom of this announcement.
  • After completion of the download, connect your Walkman to your PC by USB connection.
  • Quit all software running on your PC.
  • Double click the saved file, and work by following displayed massages.
    * Please do not disconnect the unit from the PC during updating.
    * 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.
  • When the message of completing updating is displayed, click [Finish] button.

[After update]

Please confirm the version when the update program is installed successfully with following [How to confirm the Model and the Firmware version] steps.
The update program installation is succeeded when “1.10” is shown on the screen.

- for Windows -

Click here for downloading the software.
File name : NW-A20_V1_10.exe
File size : 58.2 MB (61,073,320 byte)
Version after Update : Ver. 1.10

- for Mac -

Click here for downloading the software.
File name : NW-A20_V1_10.dmg
File size : 58.1 MB (60,968,451 byte)
Version after Update : Ver. 1.10

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