Jieli Br21 Driver Link -

Jieli BR21 is a common Bluetooth chipset often found in budget USB dongles, microphones, and sound cards. It is frequently misidentified by operating systems as a storage device or a generic USB sound card rather than a Bluetooth adapter. Ask Ubuntu Driver Identification and Download

Because Jieli (Zhuhai Jieli Technology) primarily manufactures the internal chips rather than the final consumer products, they do not provide a direct "BR21 driver" download on their official website

. Instead, you must use generic drivers or drivers provided by the specific device brand (e.g., Borofone). 杰理科技 Windows 10/11 : Most Jieli BR21 devices use the Microsoft Generic Bluetooth Driver . If your device is not recognized, you can try the Borofone BR21 Stereo Driver available on DriverIdentifier which is known to be compatible with this chipset. : The device often shows up as ID 4c4a:4155 Jieli Technology USB Composite Device . If it is stuck in storage mode, you may need to use usb-modeswitch to force it into Bluetooth mode: sudo apt update && sudo apt install usb-modeswitch -y sudo usb_modeswitch -v 0xe5b7 -p 0x0811 -W Ask Ubuntu Troubleshooting Common Issues Appears as "Audio Device" Only

: This is common for the BR21 and its predecessor, the BR17. In many cases, these devices are designed only to

audio (like a wireless headset) and do not support full Bluetooth dongle features like file transfer or connecting other peripherals. No "Bluetooth" Toggle

: If the Bluetooth button does not appear in Windows Settings, the system hasn't loaded the radio driver. Right-click the device in Device Manager Update Driver jieli br21 driver link

, and choose "Browse my computer for drivers" to manually select a "Generic Bluetooth Adapter". Ask Ubuntu Are you trying to connect a specific device like headphones microphone using this adapter? Jieli BR21 Bluetooth dongle shown as storage device

I can confirm this works with Ubuntu 22.04. Using at terminal lsusb lists as: "ID 4c4a:4155 Jieli Technology USB Composite Device" Ask Ubuntu Jieli BR21 Bluetooth dongle shown as storage device

Direct Official Download (Manufacturer): Jieli Technology does not host public drivers on a pretty marketing page. However, the most stable driver package is distributed via their SDK partners. The safest, universally compatible version is maintained in the "JL-Link" toolset.

Currently, the most reliable Jieli BR21 driver link is available via the "Zadig" tool or the official "Actions" driver package from Github/WCH (as the BR21 uses a USB bridge similar to the CH340).

Safe Download Locations:

Cause: You downloaded a 32-bit driver for a 64-bit OS, or vice versa. Fix: Look for a folder labeled x64 (for 64-bit Windows) or x86 (for 32-bit). Modern BR21 drivers are primarily 64-bit.

The BR21 chip creates two audio profiles: Stereo (High quality) and Hands-Free (Low quality, but allows mic use).

If you have recently purchased a Bluetooth adapter, a USB sound card, or a DIY Bluetooth receiver module, chances are high that it is built around the Jieli (JL) BR21 chip. This highly integrated Bluetooth audio SoC (System on Chip) is popular for its low cost, stable A2DP (music streaming) support, and HFP (hands-free calling) capabilities. Jieli BR21 is a common Bluetooth chipset often

However, a recurring frustration among Windows users (especially those on Windows 10 and 11) is that the device does not work "plug and play." Instead of seeing a new Bluetooth adapter in their system tray, they see an "Unknown USB Device" error or a device showing up under "Other devices" with a yellow exclamation mark.

This is where the Jieli BR21 driver becomes essential. Unlike standard CSR or Broadcom chips that use native Microsoft drivers, the Jieli BR21 often requires a specific USB driver to function as a standard Bluetooth radio.

Warning: The internet is full of fake driver sites. Do not download from "driver-haven" or similar pop-up-laden websites. This guide points you to the safest sources, including the official manufacturer links and trusted open-source repositories.

Many users assume that Windows Update will automatically fetch the driver. Unfortunately, due to the BR21 often being used in generic, unbranded dongles, Microsoft’s database rarely recognizes the hardware ID.

Without the correct driver:

The correct driver essentially tells Windows how to talk to the BR21’s USB-to-UART bridge and Bluetooth stack.

Right-click the JL_BR21_Driver.zip and select "Extract All." You should see files like JL_USB.inf, JL_USB.sys, and setup.exe.