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

Notice Before Updating

About This Download

Benefits and Improvements

• Improves secure communication

Previous Benefits and Improvements

The following benefits and improvements are also included in this update.

• Improves overall device compatibility and connectivity when using the Party Connect feature
  • Improves the connection with newly added Party Connect-compatible devices
  • Adds a new method for adding compatible devices to the Party Connect function via on-device operations
  • Improves connectivity when using the Party Connect function
  • Enhances custom Equalization (EQ) sound settings (SRS-XV500, SRS-XV800 for India model only)
• Fixes an issue where with a Bluetooth connection music plays at an unintended volume
• Improves connectivity and retention of the Sound settings

System Requirements

• An Android device (Ver. 9.0 or later) or an iPhone/iPad/iPod touch (iOS Ver. 15.0 or later)
• An active Internet connection
• The latest version of the Sony | Music Center app must be installed
• The speakers must be connected to your Android device or iPhone/iPad/iPod touch

File Info

• Name for SRS-XV900: Firmware update to 4000 for SRS-XV900
• Name for SRS-XV800: Firmware update to 4000 for SRS-XV800
• Name for SRS-XV500: Firmware update to 1600 for SRS-XV500
• Version for SRS-XV900: 4000
• Version for SRS-XV800: 4000
• Version for SRS-XV500: 1600
• Size for SRS-XV900: 1.48 MB (1 557 024 bytes)
• Size for SRS-XV800: 1.46 MB (1 536 992 bytes)
• Size for SRS-XV500: 1.44 MB (1 520 496 bytes)
• Release Date: 18-12-2025

Preparation

Check the Firmware Version

If the version displayed is 3900 or lower (SRS-XV900/SRS-XV800), or 1500 or lower (SRS-XV500), we strongly recommend that you update the firmware.
If you're not sure, it's easy to check which firmware version you currently have.
You can check the firmware version as follows:

1. Turn on the speaker.
2. Launch the Sony | Music Center app.
3. Connect your speaker to the Sony | Music Center app.
4. Select Settings.
   
5. Select System.
   
6. Confirm the firmware version.
   

Important Notice

• Do not turn off your speaker while downloading updates, transferring data, or updating the firmware. Doing so may cause the speaker to stop working.
• 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, or near a microwave, cordless phone, or any other devices that use the 2.4 GHz band frequency radio waves.
• Make sure both your Android device or iPhone/iPad/iPod touch and speaker are fully charged.
• Make sure your speaker is connected to a power outlet via the AC power cord before starting the update.
• Disconnect all other Bluetooth devices such as wearable devices or smartwatches from your Android device or iPhone/iPad/iPod touch before starting the update.

Before You Upgrade

• After updating, the firmware cannot be reverted to an earlier version.
• For Android devices, the update process will take approximately 5 minutes (SRS-XV900), 6 minutes (SRS-XV800), or 4 minutes (SRS-XV500) to complete.
• For iPhone/iPad/iPod touch, the update process will take approximately 11 minutes (SRS-XV900) or 10 minutes (SRS-XV800/SRS-XV500) to complete.
• Depending on the radio wave environment and your Android device or iPhone/iPad/iPod touch, it may take longer to complete.

Download & Install

To Update the Speaker, Follow the Procedure Below:

1. Download the data from the server to your Android device or iPhone/iPad/iPod touch.
2. Transfer the data from your Android device or iPhone/iPad/iPod touch to the speaker.
3. Complete the update using the speaker.

Step 1: Install the Update

1. Connect the speaker to an AC outlet using the supplied AC power cord.
   Note: The software update cannot be performed when using battery power only.
2. Turn on the speaker.
3. Launch the Sony | Music Center app.
4. Connect your speaker to the Sony | Music Center app.
5. The following screen will be shown when the connection has been established.
   If an update is applicable, an “Update the software of the speaker.” message will be displayed. Press More info to proceed.
   
6. Verify that version 4000 (SRS-XV900/SRS-XV800) or 1600 (SRS-XV500) is displayed, then press OK to start the update.
   
7. Once the download starts, the next screen will automatically appear after the download is completed.
8. Once the transfer starts, the next screen will automatically appear after the transfer is completed.
   Note: Do not turn off your speakers while downloading updates, transferring data, or updating the software. Otherwise, the speakers may stop working.
9. When the software update is completed, press OK.
   
10. If the screen is not displayed, check whether the version has been upgraded in the Step 2: Check the Update Was Successful section below.
11. The speaker automatically turns off when the software update ends.

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 4000 (SRS-XV900/SRS-XV800) or 1600 (SRS-XV500), the upgrade was successful.

Questions & Answers

An update error message appears.

Follow these steps:

1. Press OK.
2. Restart the speaker (turn the power off and then on).
3. After restarting the speaker, restart the Sony | Music Center app, then try the update again.

Even though the update failed during the process, check the firmware version. If the version shown is 4000 (SRS-XV900/SRS-XV800) or 1600 (SRS-XV500), the firmware update was successful. If not, try the firmware update again. You can check the version from the settings in the Sony | Music Center app. To find out how to check the version, go to the Check the Firmware Version section on this page.