70mai A800 Sound recording issues (firmware 1.0.9)

[eugenr]

Hello everybody,

I bought a 70mai A800 camera from Aliexpress in February 2021. As of 2 months ago, the sound is no longer good. I attached the details of the camera and one link to youtube with a sample. Has anyone else encountered something like this? Where can the problem come from?

 

[Kevin613]

had the same exact issue, and the mic is now dead