Jieli Br21 Driver !!top!! -

The Jieli BR21 is a highly integrated, low-power Bluetooth system-on-chip (SoC). It handles both the hardware processes and the software stack required to transmit audio data over Bluetooth.

It frequently acts as a "USB Sound Card" rather than a full-system Bluetooth adapter.

If identified as ID 4c4a:4155 Jieli Technology , it acts as a rather than a pure Bluetooth dongle. Jieli Br21 Driver

Unlike high-end chipsets from Qualcomm or Realtek, the Jieli BR21 is engineered as a multi-mode composite controller. Depending on how the manufacturer flashes the firmware, a single Jieli BR21 device can present itself to a computer as a generic , a USB Mass Storage Device , or a Human Interface Device (HID) —and occasionally, all three simultaneously. Understanding the Jieli BR21 Driver Architecture

Right-click the Windows Start menu and select . The Jieli BR21 is a highly integrated, low-power

If the driver isn't installed automatically, click on (under advanced options). Look for drivers labeled Jieli, Jerry, Audio, or Bluetooth and check the box to install them. Method 2: Manual Installation via Device Manager

) to enable the interface feature and allow the computer to "see" the driver. How to "Enable" the Driver If identified as ID 4c4a:4155 Jieli Technology ,

Go to your Sound Settings and ensure "JieLi BR17" or "JieLi BR21" is selected as your default Output and Input device.