The "story" of the Jieli BR21 driver link a common troubleshooting tale in the tech community, stemming from the fact that many affordable Bluetooth dongles and audio mixers (like those from Pyle or Borofone) use the JieLi AC690X series of chips The "Mystery Device" Problem
In device manager, an undriven BR21 in download mode appears as: jieli br21 driver link
The "BR21" name frequently appears in Device Manager when a JieLi-based device (like a Bluetooth dongle or MP3 module) enters a specific recovery or programming mode: The "story" of the Jieli BR21 driver link
Mode 2: Standard Bluetooth Dongle: These require the "Borofone BR21" or generic Bluetooth stack drivers to enable the Windows Bluetooth toggle. Direct Driver Download Links Scan files for malware
Disclaimer: This article is for educational purposes. Always scan downloaded driver files with Windows Defender. The author is not affiliated with Jieli Technology.
Q: Is the Jieli BR21 driver compatible with macOS or Linux? A: macOS and Linux typically use native USB audio class drivers. You generally do not need a special driver for these operating systems. This guide is for Windows only.