When I make a call or a call comes comes in. I hear the ppl talking just fine. But sometimes they have a hard time hearing me or they don’t hear me period. It doesn’t mater if I am using the internal mic or a plug in headset with boom mic. Now sometimes if I take the phone and wack it hard on the desk. The internal mic or on the headset, ppl will now hear me crystal clear. From my knowledge of fixing 2 way radios, tv’s and early vcr’s. This sounds like a bad wire or a bad solder joint. I also assuming that this is something beyond my scope to be able to fix. BTW the internet and texting are not affected by this problem, they still work 100%.
This is on a LG Aristo 4 + model LM-X320MA phone, Android version 9.