Note: When you click the links below to download the firmware, it indicates that you have already read and agreed to the Open source licenses.

How to upgrade the FW3: Click here

Updated at 2023-09-28

FW3 v1.1 download link: Click here

The following changes and improvements have been made to the V1.1:

1. Changed the default volume to 27.

2. Fixed the issue when connecting to some mobile phones via aptX adaptive, the earbuds will have a modified tone after automatically reconnecting to the phone.

3. Added the function of responding to the song switching button even when not playing music.

4. Optimized the charging logic.

Updated at 2023-06-27

FW3 v0.5 download link: Click here

The following changes and improvements have been made to the V0.5:

1. Added support for LDAC;

2. Improved the connecting speed on the iOS app;

3. Optimized connecting stability with some mobile phones in aptX Adaptive;

4. Changed the default volume to 20 levels when making phone calls.