⚠️Please include the test result when resorting to email support.
Is "Fifine Microphone" seen by your Windows or Mac, or is it recognized as an unknown device?
If your FiFine A6T microphone is recognized, do you hear the voice play through your computer speaker?
(Please refer to "It's recognized, but I didn't hear any sound coming out of my Windows when I spoke" part).
If the computer sees it as an unknown device, have you tested out on a different computer? Or have you tried to update and reinstall the unknown driver a few times on the same computer?
(Please refer to "My Windows is not recognizing the microphone" part).