To help find the exact driver package or workaround for your system, please share:
# Update usb_modeswitch sudo apt update && sudo apt install usb-modeswitch -y # Attempt to switch the device mode sudo usb_modeswitch -v 0xe5b7 -p 0x0811 -W Use code with caution.
Because Jieli Technology is a component manufacturer (B2B), they rarely provide direct consumer download portals on their official website. Instead, the driver is usually distributed in three ways: 1. Windows Update (Recommended)
: Facilitates high-quality A2DP wireless audio transmission. Jieli Br21 Driver
: Right-click the speaker icon in your system tray, open Sound settings , and ensure the Jieli BR21 device is selected as both the default Output and default Input device. Driver Specifications and Compatibility Specification Manufacturer Zhuhai Jieli Technology Co., Ltd. Supported OS Windows 7, 8, 10, 11 (32-bit & 64-bit), Linux kernel 4.x+ Interface USB 2.0 / USB 3.0 / UART Bluetooth Version
: It may appear in your device manager as a "Jieli Technology USB Composite Device" or "Borofone BR21 Stereo" . How to Install and Fix
Even with the correct driver, Bluetooth audio can be finicky. Here are solutions to the most common BR21 driver-related issues: To help find the exact driver package or
error, it often means Windows has corrupted the "UpperFilters" or "LowerFilters" for your USB audio class. This requires a registry edit (only recommended for advanced users) or a system restore to a point before the error occurred. Common Symptoms of Failure Constant Disconnection
Instead of searching for "Jieli" drivers, run a standard Windows Update with the device plugged in. Windows will usually pull the generic "Bluetooth Radio" or "USB Audio Class" driver automatically.
Jieli Technology is a major manufacturer of cost-effective Bluetooth audio solutions. The BR21 chipset is common in inexpensive Bluetooth dongles, "Stereo" Bluetooth adapters (like the Borofone BR21), and Bluetooth-enabled, lower-end audio mixers. Key Characteristics: Supported OS Windows 7, 8, 10, 11 (32-bit
: If the device shows up as a storage drive instead of a sound card, it may be stuck in mass storage mode. On Linux, tools like usb_modeswitch are sometimes used to force it into audio mode. Update Tool : For developers or advanced users, Jieli provides a USB Dongle 4.0 Update Tool
: Most JieLi chips are designed to be "Plug and Play." They rely on the standard Microsoft High Definition Audio Device
Jieli Technology does not offer a public consumer-facing support portal like Realtek or Broadcom. Instead, drivers are distributed through:
: Identifies the connected unit as a standard Bluetooth adapter or audio device. Do You Actually Need to Download a Driver?
Zhuhai Jieli Technology is a massive semiconductor manufacturer based in China. They specialize in integrated circuits (ICs) that handle Bluetooth, FM radio, USB storage, and audio decoding simultaneously on a single piece of silicon. Their chips (such as the AC690X, AC692X, and BR series) power millions of consumer electronics worldwide.