Applicable Models

This information is for the following models:
  • NWZ-A866
  • NWZ-A865
  • NWZ-A864

About this download

For owners of Walkman A series, we offer NWZ-A864/A865/A866 firmware update program to the latest version 1.04.
Please read carefully the following instructions.

Note: This update utility is not necessary if your Walkman has already been updated to firmware version 1.04 by the automatic firmware update function.

Contents of the update  
This utility updates the Walkman® player to firmware version 1.04 and provides the following benefits:

  • Improved stability when connecting with some Bluetooth devices of other companies.

Improvements provided by previous updates and included in version 1.04: 

  • Stability of the touch panel operation has been improved.

Applicable Models
NWZ-A860 Series (NWZ-A864/A865/A866) that have firmware version lower than 1.04.

Target owners
The owners of the target products whose firmware version should be 1.00.

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

  1. Press the HOME button until the Home menu appears.
  2. Tap (Settings), Common Settings, and Unit Information.

Confirm the Model and the Firmware version.

Target PC environments
* OS

  • 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)
  • Windows XP Professional (Service Pack 3 or later)\
  • Windows XP Home Edition (Service Pack 3 or later)
    (Not supported 64 bit version OS for Windows XP Professional.)

Hardware requirements

  • CPU
    Windows 8: 1 GHz or more
    Windows 7: Pentium Ⅲ 1GHz or higher
    Windows Vista: Pentium Ⅲ 800MHz or higher
    Windows XP: Pentium Ⅲ 500MHz or higher
  • Memory
    Windows 8: 1 GB or more (32bit) / 2 GB or more (64bit)
    Windows 7: 1GB or more (32bit version) / 2GB or more (64bit version)
    Windows Vista: 512MB or more
    Windows XP: 256MB or more
    Display: 800 x 600 dots or better (1024 x 768 dots or better is recommended)
    Display Color: High Color (16bit) or higher

Before 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 70 MB. Please confirm the size from the steps below.
    - Press the HOME button until the Home menu appears.
    - Tap  (Settings), Common Settings, and Unit Information.
    Confirm the “Free/Total Memory Space”.
  • When downloading the program and upgrading the firmware, log on to the computer with the administrator name or with any name which belongs to the administrator.
  • If you are 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.

File Info

File Name

  • NWZ-A860_V1_04.exe

File Version

  • 1.04

File Size

  • 51.1MB

Release Date

  • 2013-11-18

System Requirements

  • Windows 7
  • Windows 8
  • Windows Vista
  • Windows XP



Update procedure

  1. The update program download is started by clicking “Download” button on the bottom of this announcement.
    Following the displayed dialog box, save the “NWZ-A860_V1_04.exe” in your PC.
  2. After completion of the download, connect your Walkman to your PC by USB connection.
  3. Quit all software running on your PC.
  4. Double click the saved “NWZ-A860_V1_04.exe” file, and work by following displayed massages.
    * Please do not disconnect the unit from the PC during upgrading.
    * During upgrading, 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.

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 1.04 is shown on the screen.