Visit the support page of the specific brand printed on your device (e.g., F998) to find specialized firmware tools. www.m-vave.com 3. Setup & Troubleshooting If the device is not recognized after an update: MV USB AUDIO Drivers Download

If the device isn't showing up, it might be disabled by your firewall. Check your Sound Settings under System to ensure "B1 USB Audio" is selected for both Input and Output.

If you have recently purchased an affordable USB sound card, a virtual 7.1 channel headset adapter, or an external DAC dongle, you may have noticed a strange name appear in your Windows Device Manager: .

: Resolving issues where the device might be disabled by system settings or firewalls. Functionality