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Applicable Models

This information is for the following models:
  • NWZ-ZX1

About this download

  • Name:Firmware update 1.13 for NWZ-ZX1
  • Date released:29-10-2014
  • Do I need to download it?This update utility is not necessary if your Walkman has already been updated to firmware version 1.13 by the automatic firmware update function.
    If you're not sure, it's easy to check which version of firmware you have:
    1. In the Home screen, tap , and then tap [Settings]
    2. Confirm the Model number and firmware version
  • Benefits and improvements:
    • Improves WAV file playback

System Requirements

Operating Systems

The latest version of the firmware update iscompatible with most commonly used versions of Macintosh:

  • Mac OS X 10.6, 10.7, OS X 10.8, 10.9, 10.10, 10.11, macOS 10.12
Computer hardware

The latest version of the firmware update iscompatible with the following hardware:

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


Before you update

When upgrading, the unit is needed to have a free space about 350 MB. Please confirm the size from the steps below.

  1. In the Home screen, tap
  2. , and then tap [Settings]
  3. Confirm the available USB STORAGE

Please transfer all tracks and data from the unit to the computer in advance, since the tracks and 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.


  1. Disconnect your Walkman from the computer
  2. Prepare for this update by the following steps
    1. In the Home screen, tap , and then tap [Settings] - [Storage]
    2. Tap , then tap [USB computer connection]
    3. Tap [USB storage] to be checked
    4. Tap [Connection settings], then tap [USB auto connection] to be unchecked
  3. The update program download is started by clickingDownloadbutton on the bottom of this announcement.
    Following the displayed dialog box, save theNWZ-ZX1_V1_13_002.dmgin your PC
  4. Quit all software running on your PC
  5. Double click the savedNWZ-ZX1_V1_13_002.dmgfile, and work by following displayed massages
    • Connect your Walkman to PC, when "Connect the device to update the software." appears
    • Then tap [Turn on USB Storage](*1) on Walkman screen. The message appears, then tap [OK]
      Note: If (*1) does not appear, swipe the status bar, tap "USB connected" on the notification panel, tap "Turn on USB storage", and then tap "OK"
      • 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
  6. When the message of completing upgrading is displayed, clickFinishbutton
  7. When lock screen appears on Walkman, then drag (key mark) from left to right
  8. Return [USB auto connection] enabled by the following steps.
    1. In the Home screen, tap , and then tap [Settings] - [Storage]
    2. Tap , then tap [USB computer connection]
    3. Tap [Connection settings], and tap [USB auto connection] to be checked
After the update

Please confirm the version when the update program is installed successfully with following The update program installation is succeeded when1.13is shown on the screen.

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