This is my wife's phone and she let the newborn play with it for a few seconds. It looks like the head phone icon. When she makes a call she can't hear anyone and nobody can here her unless she has the earplugs in. It's like it's stuck on headphone mode. Thank you!
I think the baby drooled in the headphone jack. Try cleaning the jack with a qtip that has just a drop of alcohol on it. Not wet, barely moist.
Download the app Sound About from the play store. Seriously. I had the same issue on a couple phones. Appeared out of no where
