I bought Asus zenfone 6z a couple of months back . I'm suddenly facing this microphone issue where the other person on the call can't hear my voice . They can hear it only when i turn on speaker phone . I have also attached few screenshots of my board mic test , which shows one of the mic is not working properly . I don't whether it's a software/hardware issue . Please address me with this issue like , what's the problem or what i have to do next . Thanks in advance