Like many Jieli chips, the BR21 requires specific on Windows to enable:
Are you trying to with a Bluetooth dongle, or are you looking to reprogram/flash the chip? christian-kramer/JieLi-AC690X-Familiarization - GitHub jieli br21 driver link
Go back to Device Manager. Expand . You should see "Jieli BR21 Audio" or "Jieli USB Audio." Expand Universal Serial Bus devices . You should see "Jieli BR21 Composite Device." Like many Jieli chips, the BR21 requires specific
. It may appear in your system's sound settings rather than the Bluetooth menu. Manual Tools You should see "Jieli BR21 Audio" or "Jieli USB Audio
The Jieli BR21 driver is a software component designed to facilitate communication between the Jieli BR21 Bluetooth module and a computer's operating system. The Jieli BR21 is a popular Bluetooth module used in various devices, including wireless earbuds, headphones, and speakers. The driver enables these devices to connect to a computer, allowing users to stream audio, transfer files, and enjoy a seamless user experience.
Windows 11 requires digitally signed drivers. If you see "Third-party INF does not contain digital signature information," you must restart Windows into mode (Shift + Restart -> Troubleshoot -> Advanced Options -> Startup Settings -> Restart -> Press 7).