Hi,

My LG G3 has this issue with the USB in which every time I plug it in it goes silent and my alarms, music, ringtone and notifications won't sound. I haven't dropped this phone or anything, but it just started doing this one week ago right out of the blue.

I'm not sure if it's related but my mic stopped working for a few days when this started, but then got fixed up all by itself. (my phone has not been wet either).