Link __link__ - Jieli Br21 Driver

: Some users report volume fluctuations (jumping to 96%) with Jieli-based headsets. This is often fixed by rolling back to a "Generic Bluetooth" driver provided by Windows.

Finding the correct can be tricky because JieLi (ZhuHai Jieli Technology) often produces chips for "driverless" USB composite devices. These are frequently recognized by modern operating systems like Windows 10 and 11 as standard USB Audio or HID devices without needing third-party software. Direct Driver Resources jieli br21 driver link

: The official developer portal for JieLi is hosted on GitHub (Jieli-Tech) , where they provide update tools and documentation for various chip series including BR17, BR21, and BR22. : Some users report volume fluctuations (jumping to

: If the dongle appears as a mass storage device (like a thumb drive), it may be in "Update Mode" or requires a mode-switch. On Linux, tools like usb-modeswitch are often used to force it into the correct state. These are frequently recognized by modern operating systems

: For firmware-level issues or specialized "update mode" access, refer to the Jieli USB Dongle Update Tool Manual .