Check and ensure "JieLi BR21" is set as both the Default Output and Default Input device. Official Resources
If the device is stuck in storage mode, you may need usb-modeswitch to force it into audio mode using: sudo usb_modeswitch -v 0xe5b7 -p 0x0811 -W .
Windows typically uses the Generic USB Audio Driver for Jieli chips. Plug the device into a USB 2.0 or 3.0 port. Open (Right-click Start > Device Manager). jieli br21 driver verified
The device often shows up in systems as ID 4c4a:4155 Jieli Technology USB Composite Device .
Look under . You should see "JieLi BR21" or "USB Audio Device" . Check and ensure "JieLi BR21" is set as
Jieli BR21 Driver: Verified Solutions and Installation Guide
If your BR21 is built into a digital mixer, ensure the or "PC" button on your hardware is pressed. Without this hardware toggle, the driver will not initialize correctly in your DAW or recording software. Troubleshooting Common Issues Potential Solution Device not seen by Windows Plug the device into a USB 2
If it appears with a yellow exclamation mark, right-click it, select , and choose Search automatically for drivers . 2. Linux / Ubuntu Verification Linux users can verify the device using the terminal: Run lsusb to see if the Jieli Technology ID appears.