4.2.8 (often used for legacy Windows support).
to build apps that interface with these chips via Bluetooth. 2. Why does it show up as a Removable Disk?
Use USB Device Viewer (USBDeview) to confirm the Vendor ID (VID) and Product ID (PID). The Jieli BR21 typically uses VID_2E3C and PID_BR21 . If your device shows a generic Microsoft driver, proceed. jieli br21 driver exclusive
: Supports "UBOOT" status for direct on-chip flash operations via a USB JTAG interface.
If you need a driver update, Windows Update usually handles it. Avoid "exclusive" third-party download sites which often bundle malware; the official hardware uses Windows' own stack Why does it show up as a Removable Disk
When modders release "Exclusive" drivers for the BR21, they are usually unlocking features hidden by the factory to cut costs. Here is what you typically find in these exclusive packs:
Once the is active, the control suite becomes your command center. If your device shows a generic Microsoft driver, proceed
I can confirm this works with Ubuntu 22.04. Using at terminal lsusb lists as: "ID 4c4a:4155 Jieli Technology USB Composite Device" Ask Ubuntu Jieli BR21 Bluetooth dongle shown as storage device