Look under "Bluetooth" or "Other Devices". If there is a yellow warning triangle, right-click it. Select -> Search automatically for drivers . Option 2: Using Specific Manufacturer Drivers
The effective range is typically 10 meters (33 feet) in open space, but this can be reduced by walls, interference, and the capabilities of the connected device.
: Even when it's tucked inside a Borofone case, the BR21 identifies itself with pride to those who know where to look in the system logs. Jieli Br21 Driver
The is a high-performance, low-power Bluetooth System on a Chip (SoC). It is specifically designed for Bluetooth audio applications, focusing on low latency, stable connections, and integrated audio processing.
Open > Update & Security (or Windows Update on Windows 11). Click Check for updates . Look under "Bluetooth" or "Other Devices"
Right-click the Windows Start menu and select .
This is the most frequent issue. As discussed earlier, the driver is often stored on an internal storage partition. After successful installation, the device should cease to appear as a storage drive and function as a Bluetooth audio device. Option 2: Using Specific Manufacturer Drivers The effective
In most modern operating systems, you do not need to download a third-party driver manually. Plug-and-Play (PnP) Support
: Many dongles based on the Jieli BR21 use the Cambridge Silicon Radio (CSR) or Realtek driver stack. You can try the CSR Harmony driver or Realtek Bluetooth driver as a fallback—these often work.