Jieli Br21 Driver [exclusive] Jun 2026
For developers or those trying to unbrick a device, Jieli uses specific update tools. Update Tool Jieli USB Dongle 4.0 Update Tool is used to flash or upgrade the BR21 firmware. DIP Switch Settings
# Update usb_modeswitch sudo apt update && sudo apt install usb-modeswitch -y # Attempt to switch the device mode sudo usb_modeswitch -v 0xe5b7 -p 0x0811 -W Use code with caution. Jieli Br21 Driver
