USB\VID_4C4A&PID_4155 (Jieli Technology USB Composite Device)
For those looking to reprogram or deeply update the firmware, the is the standard interface for flashing chips like the BR17, BR20, and BR21. Jieli BR21 Bluetooth dongle shown as storage device
If the Bluetooth button doesn't appear in Windows, the system may be treating the BR21 solely as an audio interface. Check the Sound Control Panel to ensure the "Jieli BR21" is set as the default playback/recording device. Advanced Tools for Developers jieli br21 driver full
If your device is not working, follow these steps to ensure the full driver set is active: Open Settings > Update & Security > Windows Update .
Right-click and select . Manufacturer Specific Drivers: Advanced Tools for Developers If your device is
BTHENUM\{0000110B-0000-1000-8000-00805F9B34FB}_VID&000105D6_PID&000A
For most modern operating systems, the Jieli BR21 is designed to be . This means Windows 10/11 and Linux should automatically install the necessary USB Composite Device and USB Audio Class (UAC) drivers without requiring a manual download. Driver Type: USB Audio Class / Bluetooth HID This means Windows 10/11 and Linux should automatically
If you are using a specific brand like (BR21 model), you may find targeted drivers on enthusiast sites like DriverIdentifier , though official manufacturer sites are safer for general use. Common Troubleshooting Issues