Applicable Model

This information is for the following model(s):

  • HT-AN7 / BRAVIA Theatre U

Notice Before Updating

Read this section before starting the update.

This update uses the Sony | Sound Connect app. For information on downloading or updating the application, please refer to the Sony | Sound Connect app page, and for the update procedure, please refer to this page.

About This Download

Benefits and Improvements

  • Improves secure communication

System Requirements

  • An Android device (Ver. 11.0 or later) or an iPhone (iOS 16.0 or later)
  • An active Internet connection
  • The latest version of the Sony | Sound Connect app (Ver. 12.3.0 or later) must be installed
  • The speaker must be connected to your Android device or iPhone

File Info

  • Name: Firmware update 2900 for BRAVIA Theatre U
  • Version: 2900
  • Size: 11.6 MB (12 183 724 bytes)
  • Release Date: 12-05-2026

Preparation

Check the Firmware Version

If the firmware version is 2900, you do not need to perform the update. If you're not sure, it's easy to check which firmware version you have:

  1. Launch the Sony | Sound Connect app.
  2. Connect your speaker to the Sony | Sound Connect app.
  3. Scroll down the app, then tap All device settings → System in the red box of the app.
    Sony | Sound Connect app screens. The first image shows the [My Device] screen with [All device settings] displayed in the center. The second image shows the [System] menu with the software version displayed.
  4. Software version shown in the Menu. The version is shown only when the speaker is connected.
  5. Confirm the firmware version.

Important Notice

  • Do not charge the battery or turn off your speaker while downloading/installing the update or transferring data.
    Doing so may cause the speaker to stop working.
  • Do not perform the update in a location where the Wi-Fi signal is congested or inconsistent, such as on a train, near a microwave or cordless phone, or near any other devices that use the 2.4GHz radio frequency band.
  • Make sure both the Android/iPhone device and speaker are fully charged.
  • Disconnect all other Bluetooth devices such as smartwatches from your Android device or iPhone before starting the update.
  • To update your speaker after taking them off, go to the Auto Power Off function in the Sony | Sound Connect app and select Do not turn off.
    • If you select Off when speaker is taken off, your speaker will automatically turn off after approximately 15 minutes, and the data transfer of the update file will be interrupted. It will resume the next time your speaker turns on and the Bluetooth reconnects.
    • You can restore the settings after the update is complete.

Before You Upgrade

  • After updating, the firmware cannot return to an earlier version.
  • For Android devices, the update will take approximately 30 minutes to complete.
  • For iPhone devices, the update will take approximately 30 minutes to complete.
  • The update process may take longer depending on the radio wave environment and your Android/iPhone device.

Download & Install

Follow the steps below to update the speaker

  1. Download the data from the server to the Android/iPhone device.
  2. Transfer the data from the Android/iPhone device to the speaker.
  3. Complete the update with the speaker.

Step 1: Install the Update

  1. Launch the Sony | Sound Connect app.
  2. Connect your speaker to the Sony | Sound Connect app.
    • If you have never connected to the Sony | Sound Connect app before, follow the instructions on the screen to connect the speaker to your Android/iPhone device.
    • If you have connected to the Sony | Sound Connect app before, select your speaker from the options available.
  3. The Dashboard screen will appear when the connection has been established.
  4. If an update is available, “The latest audio device software is available.” message will appear. Press MORE INFO to continue.
    The message and [MORE INFO] button will be displayed at the bottom of the screen.
  5. Verify that Version 2900 is displayed, then press START to begin the update.
    The first image shows [LATER] and [START] buttons at the bottom right of the screen. The second image shows the software download progress.
  6. Once the download starts, the next screen will automatically appear after the download is complete.
    • For iPhone devices only: When the message “Bluetooth Pairing Request” is shown, press Pair. The update will resume.
  7. The transfer will start. The next screen will automatically appear after the download and transfer are complete.
    This will take approximately one minute.
    • Do not charge the battery or turn off your speaker while downloading/installing the update or transferring data. Doing so may cause the speaker to stop working.
    • If a “disconnection” message appears, wait until the speaker automatically reconnects.
  8. When the software update is complete, press OK.
    • If the “Software update complete.” screen does not appear, proceed to Step 2 below to check whether the version has been successfully upgraded.
    The message and [OK] button appears in the middle of the screen.

Step 2: Check the Update Was Successful

After the update, confirm the new version has been installed successfully by following the steps in the Check the Firmware Version section.

  • If the firmware version shown is 2900, the upgrade was successful.

Questions & Answers

An Update Error Message Appears

  1. Press OK.
  2. Restart the speaker (turn the power off and then on).
  3. Restart the Sony | Sound Connect app and try the update again.

Even though the update failed during the process, you can check the firmware version to confirm if the update was successful or not.

  • If the version shown is 2900, the firmware update was successful. If not, try the firmware update again.
  • You can check the current version in the settings of the Sony | Sound Connect app. Refer to the Check the Firmware Version section of this page for more details.

Sony Support

Firmware Update to Version 2900