Herobook Air N4020 does not unmute, no camera, and no working microphone

SN: ZHerBAAY1H211101688

Bought at Laptop Factory

Bought on May 25, 2023

I attempted to have a Messenger call and a Google Meet a week ago, only to find out that neither the camera nor the microphone was working. Back then, the audio still worked. However, a few days ago, the sound itself was muted completely.

I’ve tried several things such as Fn, soundbar, going to settings, win+R services.msc to restartindows audio and windows audio endpoint builder, win+X to update driver, checking volume mixer, checking output and input devices, and restarting my laptop. I am almost out of things to try. Please help.