If you are a developer or need chip-level tools, the manufacturer provides resources through these channels: Official GitHub ZhuHai Jieli Technology
| Your Goal | What You Probably Bought | What to Do | | :--- | :--- | :--- | | | A small USB dongle or an MH-M38 audio module. | 1. Plug it in. 2. Check if it appears as JieLi BR21 Spker in Device Manager . 3. If so, select it as your audio output. No driver needed. | | Add full Bluetooth functionality (keyboard, mouse, file transfer) to a PC. | An inexpensive USB Bluetooth dongle (especially one with a JIE LI chip). | You have the wrong product. The BR21 chip is for audio only . Return it and buy a dongle with a well-supported Broadcom, Realtek, or Intel chipset. | | My device shows up as a storage drive or "USB Disk." | A USB dongle or module stuck in firmware mode. | Find the correct "force download" or "update" tool from the seller. Reprogramming the device is your only fix. | | I am a developer creating products. | Jieli development tools or evaluation modules. | Download the Jieli toolchain and SDK from the official developer documentation portal ( doc.zh-jieli.com ). |
Your current (e.g., Windows 10, Windows 11)
Jieli BR21 (often appearing as part of the BR17/BR21 series) is typically not a standard Bluetooth dongle requiring a dedicated Bluetooth driver; rather, it functions as a USB Composite Device USB Sound Card that uses generic system drivers. Ask Ubuntu Understanding the Driver Situation Plug-and-Play Nature jieli br21 driver link
Here’s a technical write-up on the — a term often searched by developers working with Jieli (Zhuhai Jieli Technology) Bluetooth audio chips, specifically the BR21 model.
device and found it's not working as expected, you’re not alone. Many users find that Windows or Linux identifies these devices as a or even a storage drive rather than a standard Bluetooth dongle.
For developers and advanced users working with Jieli BR21 development boards or custom flashing tools, open-source repositories often host the necessary toolchains and USB-to-UART drivers (such as the CH340 or CP210x drivers often paired with Jieli boards). Search GitHub for "Jieli AC69" or "BR21 toolchain" to find verified repository links. If you are a developer or need chip-level
Open , right-click the problematic Jieli device, and click Update driver . Choose Browse my computer for drivers .
: Most devices using this chip are designed to be recognized automatically by Windows, macOS, or Linux as a USB Audio Device Common Recognition Issue
Audio cuts out, crackles, or refuses to route through your wireless speakers. If so, select it as your audio output
: Ensure the downloaded driver matches your system (e.g., 32-bit vs. 64-bit).
Connecting smartphones to older car stereos or home speakers via AUX.
Finding the correct driver for JieLi (Jerry) microchips can be challenging because the manufacturer primarily operates as a business-to-business (B2B) supplier. If you are trying to connect a Bluetooth receiver, car audio adapter, or development board utilizing the JieLi BR21 chipset to your computer, this comprehensive guide will help you locate the software you need and get your device functioning properly. Understanding the JieLi BR21 Chipset
If you downloaded a driver from the Windows Update Catalog or a zip archive, it won't have an installer app. You must install it manually: Extract the downloaded folder to your desktop.