Applicable Models

This information is for the following models:

  • WH-H900N
  • WF-SP700N
  • WI-SP600N
  • WI-C600N

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

  • Adds support for Amazon Alexa
  • Adds support for the Voice Guidance language selection feature (WI-C600N only)

Note:
In order to use Amazon Alexa or the Voice Guidance language selection feature (WI-C600N only), the Sony | Headphones Connect application, version 5.0.0 or later, will need to be installed.

Previous Benefits and Improvements

  • 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 (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 4.2.0 for WH-H900N / WF-SP700N / WI-SP600N / WI-C600N

File Version

  • Version 4.2.0

Release Date

  • 04-06-2019

Preparation

Check the firmware version

If the firmware of your WH-H900N / WF-SP700N / WI-SP600N / WI-C600N is version "4.2.0" 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 WH-H900N / WF-SP700N / WI-SP600N / WI-C600N 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 WH-H900N / WF-SP700N / WI-SP600N / WI-C600N firmware version.

Important notice

DO NOT "Charge the battery" or "Power off" while downloading/transferring data or 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 WH-H900N / WF-SP700N / WI-SP600N / WI-C600N) 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.

  • WH-H900N
    For Android devices, the update process will take approximately 25 minutes to complete. (The file size is about 3.3 MB)
    For iOS devices, the update process will take approximately 35 minutes to complete. (The file size is about 3.3 MB)
  • WF-SP700N
    For Android devices, the update process will take approximately 60 minutes to complete. (The file size is about 1.4 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. (The file size is about 1.4 MB)
  • Google and Android are trademarks of Google LLC.

  • WI-SP600N
    For Android devices, the update process will take approximately 20 minutes to complete. (The file size is about 2.1 MB)
    For iOS devices, the update process will take approximately 15 minutes to complete. (The file size is about 2.1 MB)
  • WI-C600N
    For Android devices, the update process will take approximately 20 minutes to complete. (The file size is about 2.0 MB (1.7 MB for CN version))
    For iOS devices, the update process will take approximately 15 minutes to complete. (The file size is about 2.0 MB (1.7 MB for CN version))

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 WH-H900N / WF-SP700N / WI-SP600N / WI-C600N 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".
    For WF-SP700N, 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 4.2.0" 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

  • WH-H900N / WI-SP600N / WI-C600N
    After the update, confirm that the new version has been installed successfully by following the steps in the [Check the firmware version] section.
  • WF-SP700N
    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 "4.2.0", the upgrade was successful.

Questions & Answers

An update error message appears.

  1. Press "OK".
  2. Restart (turn the power off then on) the WH-H900N / WF-SP700N / WI-SP600N / WI-C600N.
  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 4.2.0, 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.