Applicable Models

This information is for the following models:

  • WF-1000X

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

About this download

Benefits and improvements from the latest update

  • Optimises the headphones for Google Assistant
Installing this firmware will only make your headphones compatible with the Google Assistant.
The Google Assistant itself was activated by Google in the course of 2018. Activation may vary, depending on your country.

Google and Android are trademarks of Google LLC.

Previous Benefits and Improvements

  • Pre-update for supporting Google Assistant
  • Other function improvements
  • Improves connection stability and reduces sound skipping
  • WF-1000X no longer turns off automatically when you change the "Sound Quality Mode" using the "Sony | Headphones Connect" application on iOS devices

System Requirements

  • An Android device (V5.0 or later) or an iOS device (iOS 11.0 or later)
  • An active Internet connection
  • The latest version of the "Sony | Headphones Connect (v5.0.0 or higher)" application must be installed.
  • The headphones must be connected to your Android or iOS device

File Info

File Name

  • Firmware update 3.1.4 for WF-1000X

File Version

  • Version 3.1.4

Release Date

  • 12-03-2019


Check the firmware version

If the firmware of your WF-1000X is version "3.1.4" or above, you do not need to perform the update.
If you're not sure, it's easy to check which version of firmware you have:

  1. Launch the "Sony | Headphones Connect" application.
  2. Connect your WF-1000X to the "Sony | Headphones Connect" application.
  3. Tap the three dots (menu button) in the upper right corner.
  4. Select the Version of your device shown in the Menu. This item is shown only when the device is connected.
  5. Confirm the WF-1000X firmware version.

Important notice

DO NOT "insert the main unit into the battery charger" or "Power off" while downloading/transferring data/updating, otherwise the headphones may become unusable.

DO NOT perform the update in a location where the Wi-Fi signal is inconsistent, such as:
- on a train/in a place where Wi-Fi signals become congested
- near a microwave, cordless phone or any other devices that use the 2.4 GHz band frequency radio waves

Make sure both devices (Android/iOS device and WF-1000X) are fully charged.

Disconnect all other Bluetooth devices such as wearable devices or smart watches from your Android/iOS device before starting the update.

Before you upgrade

  • After updating, the firmware cannot be reverted to an earlier version.
  • For WF-1000X, the update process will take approximately 60 minutes (Android devices) or 60 minutes (iOS devices) to complete. (The file size is about 2.0 MB)
  • Depending on the radio wave environment and your Android/iOS device, it may take longer to complete.

Download & Install

To update these headphones, follow the procedure below:
  • Download data from the server to the iOS device or the Android device.
  • Transfer data from the iOS device or the Android device to the headphones.
  • Execute update with the headphones.

Step 1: Install the update

  1. Launch the "Sony | Headphones Connect" application.
  2. Connect your WF-1000X to the "Sony | Headphones Connect" application.
    • If you have never connected to the "Sony | Headphones Connect" application before, follow the instructions on the screen to connect the headphones to your Android device.
    • If you have connected to the "Sony | Headphones Connect" application before, select your headphones.
  3. The following screen will be shown when the connection has been established.
  4. If an update is applicable, "Headphone update available" will be displayed and you can press "More Info".
    Make sure that the right and left headphones are connected to each other. To confirm the connection, please press a button on the right-hand side and check that the blue light flashes every 5 seconds. If there is no flash or the flash appears every 1 second, please put the product into the case and try again from the beginning.
  5. Verify that "Version 3.1.4" is displayed and press "OK" to start the update.
  6. Once the download starts, it will automatically move to the next screen after the download is completed.
    When the message [Bluetooth Pairing Request] is displayed, press "Pair". The update will resume. (Only for iOS devices.)
  7. The transfer starts. It will automatically move to the next screen after the download has been completed.
  8. Once the transfer starts, it will automatically move to the next screen after the transfer has been completed. This will take approximately one minute.
    Do not charge the battery or turn off your headphones while downloading updates, transferring data or updating, otherwise the headphones may become unusable.
    If a disconnection message is displayed, wait until it automatically reconnects.
  9. When the software update is completed, press "OK".
    If the screen is not displayed, check whether the version has been upgraded in the following step.

Step 2: Check the update was successful

After the update, store the headphones into the battery charger and then remove the headphones from the battery charger, and confirm that the new version has been successfully installed by following the steps in the [Check the firmware version] section.

If the firmware version shown is "3.1.4", the upgrade was successful.

Questions & Answers

An update error message appears.

  1. Press "OK".
  2. Restart (turn the power off then on) the WF-1000X.
  3. After that, restart "Sony | Headphones Connect" and update again

Even though the update failed during the process, check the firmware version. If the Version is shown as 3.1.4, the firmware update was successful. If not, try the firmware update again. You can check the Version from the setting in the "Sony | Headphones Connect" application. To find out how to check the version, go to the "Check the firmware version" on this page.

You may find some related information on the following page.
Sound cuts out in the right unit of the WF-1000X earphones