The latest Jaybird X3 firmware version is 1.4.0. This update has general bug fixes.

Step 1 - Download the app

Step 2 - Install the app

After the app has downloaded, double click the .exe file, and follow the prompts to install the app. If the download is blocked, you may need to temporarily disable Windows Defender or your anti-virus.

Step 3 - Run the app

Go to your Windows Start menu and run Jaybird X3 Update Assistant.

Step 4 - Follow the instructions

Follow the instructions provided within the app to connect and update your buds.


If you are having any issues with the update process, please contact Jaybird Support.


How do I know if my Jaybird X3 have the latest firmware?

There are two ways to check if your X3 have the latest firmware.

1. Jaybird App

Install the Jaybird app and connect your X4 buds

Android: Go to Menu → Support

iOS: Go to Headphones tab → Support

Your X3 firmware will display after the app build number.

The latest firmware is v1.4.0 If you have an earlier version download the Firmware Update Assistant and follow the instructions.

2. Firmware Update Assistant

Download the Firmware Update Assistant and follow the instructions. The Update Assistant will tell you if your X3 already have the latest firmware.

Please note: The Firmware Update Assistant will have a software version. This is different to the headphone firmware version.


If your buds are unresponsive after a successful update, put them back on the charger (connected to a power source) for a few seconds and then remove again. This will get them out of the unresponsive DFU mode after the update.

Don't Miss a Beat

Sign up to receive exclusive offers and updates.

Follow Us