Chosen Solution

I have had my phone (LG Escape 3 (k373) 4G LTE) for awhile and it’s been without service for a month I just activated service again today on this phone had to get a new SIM card and everything it’s with Cricket anyways my phone has always worked when it came to calls however today a friend called me I could hear them crystal clear but they couldn’t hear me but what sounded like I was moving my phone around and it was beeping which I didn’t hear any beeping in my end but however when I put my phone on speaker phone they could hear me crystal clear so another friend called same issue. And I’ve never had this issue before today so what do I do? And no my ok Google isn’t on as I don’t use it not was my microphone muted either I’m at a loss…

Is your phone showing that the headphones are plugged in?

As you said it seems that the microphone on the bottom of your phone is not work.

It could be your microphone, phones usally have 2 for noise cancelling, one of these could be damaged and loudspeaker can use top microphone as normal call uses bottom mic

I have the same problem . Looks like SIM card issue for me . When I use a different sim it works - others r able to hear my voice without putting in speaker. When I use a particular sim , it doesn’t work unless I put on speaker. The problematic sim created same issue in a brand new iPhone 8 Plus when we tried at the stores….:) so try diff SIM cards and make sure the issue is with sim and not phone . I got a new sim - ported number from damaged one . Now everything works fine …..

I repaired my LG phone front Plastic shield with super glue and plastic like repairing a car windshield. you run glue along the crack - press it in with hard plastic like a credit card. then use a razor to scrape off the excess. I did not realize glue got into the ear mic . so i used a Q-tip with a little acetone and rubbed it back and forth and - presto clear as a bell. DUH!!!!!.. I guess I am sharing because a little alcohol or acetone on that little speaker may clear out any thing in the holes like oils from your skin or like mine

whe some one call me i have to put it in speaker beccause if i put in my ear with out the speaker i cant hear

why is that i can hear any sounds when i get vode chat on my phone on massage