Go to the tab and change the Property dropdown to Hardware Ids . Copy the string (it will look like USB\VID_xxxx&PID_xxxx ).
A: This is rare, but can happen with poorly configured USB drivers. Try the device on a different computer. If it works there, the issue is likely your USB controller drivers rather than the JieLi device itself.
Want a guide on how to check if your device actually uses BR21 and how to access its hidden USB mode?
: Ensure the downloaded driver matches your system (e.g., 32-bit vs. 64-bit).
Drivers play a crucial role in enabling communication between the Jieli BR21 device and the operating system. They facilitate the exchange of data, allowing users to harness the device's capabilities and optimize its performance. Without the correct drivers, the device may not function as intended, leading to compatibility issues, errors, or even complete malfunction. jieli br21 driver link
A: Insert the BR21 dongle into a USB 2.0 port (not USB 3.0, as some BR21 chips have compatibility issues with blue ports). Then run the installer again.
Open Sound Control Panel ( mmsys.cpl ), right-click the Jieli device, and select . Developers and Firmware Updates
JieLi Technology (often spelled Jerry or Jeili) produces low-cost, highly integrated Bluetooth audio SoCs (System on Chips). The BR21 series is widely used in unbranded or budget-friendly consumer electronics, including: USB Bluetooth dongles and transmitters FM modulators and car Bluetooth adapters Portable wireless speakers and headphones PC wireless audio receivers
To download the Jieli BR21 driver, users can visit the following sources: Go to the tab and change the Property
of the device appearing in Device Manager?
: Try a different USB port (preferably a USB 2.0 port if you are having connection stability issues).
JieLi provides official tools for developers to modify the Bluetooth name and address of the device:
: This is common for the BR21 and its predecessor, the BR17. In many cases, these devices are designed only to Try the device on a different computer
: The BR21 is part of the Jieli AC69 series, which are low-cost all-in-one Bluetooth chips. Common Use
: Sometimes labeled as "PC-T7" or "USB Composite Device".
When searching for a specific term like , the search results are often flooded with automated websites offering tools like "DriverPack," "Driver Booster," or generic setup files.
Some Jieli chips can accidentally enter a "Mass Storage" mode for firmware updates. If this happens, the computer sees it as a drive instead of an audio device.