2nd microphone not working

I did an LCD replacement on a phone I bought, I couldn't test before so no idea if it worked before but after finishing everything I noticed a small rip on the cable so I replaced it. I replaced it with another one and that didn't work either so I replaced it yet again and still nothing

The microphone in camera works and the microphone for google now

I am not sure if google now uses primary or secondary microphone (bottom microphone)

anybody have any ideas which is what or what the problem could be

thanks