Respuesta a "I poked my top microphone hole with a sim ejector tool what damage?"@flait111 thank you for indirectly helping. Your accidental poking of the microphone slot with the sim ejector tool helped me with my "muted" microphone problem. Apparently, it was being clogged by debris. Gently scooping 80%of it out w the sim ejector tool was more helpful than blowing into it as adviced by a lot of online note8 users, then following it up by gently brushing it w a soft bristle.