Installing and configuring the Jieli BR21 driver is a straightforward process:
For developers or those fixing firmware issues, the Jieli USB Dongle 4.0 Update Tool is the primary utility used to flash or upgrade chips like the BR17, BR20, and BR21.
If the above methods fail, your best bet is to find the original manufacturer of the product. Look for a brand name or a model number printed on the device itself. Search for that manufacturer's support website to find the correct drivers.
The Bluetooth connection drops every few minutes.
Because it acts as a composite audio Class device, . Instead, it relies on generic operating system wrappers.
) is a versatile Bluetooth and audio system-on-chip (SoC) manufactured by JieLi Technology. It is widely used in budget-friendly Bluetooth dongles, USB audio transmitters, soundboards, mixing consoles, and wireless headphones.
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Most consumer-grade Jieli BR21 USB dongles do not require a proprietary, third-party software setup. Instead, force the operating system to apply generic Bluetooth adapter drivers.
If your earbuds are from a branded OEM (e.g., SoundPEATS, QCY, or MPOW), you can search the Microsoft Update Catalog for the specific hardware ID. To find your hardware ID: