Sony Support

Firmware Update to Version 4.5.2 for WF-1000X / WF-SP700N

Improves the stability while using the Advanced Audio Coding (AAC) audio setting

    Applicable Models
    About this download
    System Requirements
    File Info
    Preparation
    Download&Install
    Questions & Answers

    Applicable Models

    This information is for the following models:

    • WF-1000X
    • WF-SP700N

    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

    • Improves the stability while using the Advanced Audio Coding (AAC) audio setting
    • Enhances the security features of the system software
    • Improves general performance of the headphones

    Previous Benefits and Improvements

    WF-1000X

    • Adds support for Amazon Alexa
      Note:
      In order to use Amazon Alexa with this product, you will need version 5.0.0 (or later) of the "Sony | Headphones Connect" application.
    • Optimises the headphones for Google Assistant
    • 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

    WF-SP700N

    • Adds support for Amazon Alexa
      Note:
      In order to use Amazon Alexa with this product, you will need version 5.0.0 (or later) of the "Sony | Headphones Connect" application.
    • Optimises the headphones for Google Assistant

    IMPORTANT:
    Installing this firmware will only make your headphones compatible with the Google Assistant.
    The Google Assistant itself will be activated by Google in the course of 2018. Depending on your country, activation might vary.

    Note: Google and Android are trademarks of Google LLC.

    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" application must be installed
    • The headphones must be connected to your Android or iOS device

    File Info

    File Name

    • Firmware update 4.5.2 for WF-1000X / WF-SP700N

    File Version

    • Version 4.5.2

    Release Date

    • 28-05-2020

    Preparation

    Check the firmware version

    If the firmware of your WF-1000X / WF-SP700N is version "4.5.2" 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 / WF-SP700N 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 / WF-SP700N 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 / WF-SP700N) 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

    • Once updated, the firmware cannot be reverted to an earlier version.
    • The update process will take approximately 60 minutes to complete for Android/iOS devices (the file sizes for WF-1000X/WF-SP700N are about 2.2 MB).
      For iOS devices, make sure to turn off the "Google Assistant" function prior to the update. The update process will take approximately 60 minutes to complete.
    • Depending on the radio wave environment and your Android/iOS device, it may take longer to complete.
    • 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.

    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 / WF-SP700N 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 4.5.2" 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.
      NOTE:
      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.
      NOTE:
      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 "4.5.2", 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 / WF-SP700N.
    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 4.5.2, 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