My mic does not respond after the newest Update.

I have done setting restart, multiple times switched off and on, made calls with speaker on and of, taken videos or snaps, I can not send voice messages or make voice records. Everything that I have done is unfortunate.. My videos remain silent and nobody hears me on the calls.. When I watch youtube, there is a sound. When I watch videos, there is no sound or whatsoever, and the sound icon is grey, as inactive.. Some apps, when I try to record voice, stopps working, or just closes.. I can use my Iphone 7 with headphones, what is wery frustrating..