unmute

when I answer a call , I can hear them perfectly but they can not hear me at all .

While watching TV, A bold black and white mute icon popped up (different from he normal one, one Ive never seen before, and Ive been using this TV for over four years). Ive completely lost all sound, Ive tried to use all three of my remotes (my cable remote, my TV remote, and my audio converter...

I have no idea what happened, and all of a sudden everything on my LG lollipop phone is on mute even my ringtone! Even if I set my profile as outdoor! PLEASE HELP!