Sound and microphone work in apps but not in call - One (M7) Q&A, Help & Troubleshooting

I cannot hear anyone when i make or receive a call. They also cannot hear me. Bluetooth is also affected. Does anyone know what causes this?

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WowSRSHD need help

So I did the regi edit and installed it and it works great with my bluetooth headphones but the only problem is when I get incoming and outgoing calls I cant talk. I can hear the person calling me but they cant hear me and when I uninstalled it. Everything was back to normal anyway to fix this?

[Q] cant hear other line

when i make or receive a call i cannot hear the person on the other line unless i put it on speaker or use headphones. Does anyone know how to fix this?

No sound on call, mic not working for receiving end.

I'm having an issue with my Galaxy S6 920A on T-Mobile. If I originate a call in an area of weak signal many times the receiver cannot hear me, as if the mic is not working. Happens about 50% of the time. No problems with the mic, sound recorder is fine, I can make wifi calls and works every time. Incoming calls work most of the time (occasionally, maybe about one out of 10 calls has same issue). The outgoing channel is working because I can send DTMF tones using the keypad and the receiver will hear those, just not any voice from the mic. This is happening on two phones, one with Android 7.0 and one with Android 5.0.1. Also doesn't matter if I use a bluetooth headset, same issue. Can't have a phone where I have a 50/50 chance of my recipient hearing me. Any help would be appreciated.
Can anyone help on this? I'm trying to figure out if I have a physical problem with the phone or if they all work like this. Seems unusual that I would have two phones bought at different stores with different color and they both have this issue. Thanks.
krogalsky said:
I'm having an issue with my Galaxy S6 920A on T-Mobile. If I originate a call in an area of weak signal many times the receiver cannot hear me, as if the mic is not working. Happens about 50% of the time. No problems with the mic, sound recorder is fine, I can make wifi calls and works every time. Incoming calls work most of the time (occasionally, maybe about one out of 10 calls has same issue). The outgoing channel is working because I can send DTMF tones using the keypad and the receiver will hear those, just not any voice from the mic. This is happening on two phones, one with Android 7.0 and one with Android 5.0.1. Also doesn't matter if I use a bluetooth headset, same issue. Can't have a phone where I have a 50/50 chance of my recipient hearing me. Any help would be appreciated.
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Caller cannot hear me when I use Speakerphone

Literally as the title says, if i call or receive a call to/from someone and hit Speakerphone for hands-free, they cannot hear me. It's as if i'm muted to them but I can still hear everything. Does anyone know of this bug or if there's a fix?
Thanks!
I would try factory reset first to see if it is software related.

Question microphone issue during whatsapp video call

Hi all
Has anyone of you noticed problems with the microphone during Whatsapp video calls? I mean, I often make calls with my parents who distinctly hear only my voice but hear the voices of my daughters very badly. I tried using other phones convinced that the problem was in the speaker of the phone I was calling, but instead the voices are heard very well.
Is there any setting I can change?
Thanks!

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