i have the same problem, latest firmware. windows 10, and i'm very savy with these kinds of things.
so when i say the mic is too quiet, it means you should not buy these, and i'm returning mine since this problem is at least months old. i wanted to give you guys a chance but pepole can't hear me, i can't hear me in voice recordings, and so on.
returning these first chance i get, shame because i got them for $90