No more microphone after switching to speaker and back - G3 Q&A, Help & Troubleshooting

I have a strange thing on my G3:
When phoning everything works - I switch to Speaker and everything works - I switch back to Normal and my phonepartner cannot hear me anymore, Mic is not working.
Switching back to Speaker or redialing and everything works.

Thread closed as per OP request

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There is no sound from speaker

Hi guys. Untill today i was using my BA without no problem. I use WM 6.5-R5 when someone call me the phone ringing and i can hear the sound coming from the speaker, but when i answer it there is no sound from the speaker. when i try to play an mp3 there is no sound too. when i call someone there is no sound i can not hear the dial tone or the persons voice. the speaker works only when receiving a call and there is only ringing sound. it happens suddenly. it was working very normal untill today. i just flash the rom and there is no change still no sound. what is the problem? does anybody know?
1. check the system volume in the task bar, maybe the right bar is up and the left one is down, that would cause that the only sound you can hear is your ringtone, and nothing else
2. if that is the case try putting the left one up, if that works and there is still no sound, check again, maybe it lowered itself, in that case, re-flash your device (occured to me once)
3. if both points aren't applicable, look up the settings for sounds & notifications (very unlikely)
i personally believe it is no. 2, as i had that issue myself just a few weeks ago.
i checked everything about sound but nothing changed, then suddenly it come back to normal :S now there is no problem thanks anyway

[Q] headset volume kaput nor mic

After flashing a rom the headset spkr and mic do not work. Reverted back to original backup... still not working.
However while in call, using speaker phone works along with mic when phone is on speaker phone mode.

Calls on speaker stopped working

When I make calls with speaker on, I can hear the other person but they can't hear me. Just started doing this. Also, Bluetooth speaker has also stopped working, any ideas...?
gsw5700 said:
When I make calls with speaker on, I can hear the other person but they can't hear me. Just started doing this. Also, Bluetooth speaker has also stopped working, any ideas...?
Click to expand...
Click to collapse
I had the same problem with the speaker on and no one being able to hear me. Turned out to be a defective phone in my case. Apparently there must be a different mic used for speakerphone calls vs regular calls. Since you also have a bluetooth issue, maybe your problem is different than mine.
just tried hard reset and its still the same, will have to send it back under warranty, major hassle
Flashed 10g again, microphone now works

Microphone issue

Mi Max 32GB V8.1.4.0.MBCMIDI
The caller will not hear me, but when turn on the speakerphone, the caller hears me well. In the service menu microphone tests everything works.
When I record my voice recorder.app everything works well. NOT working only during a call, in Skype not working too. Maybe you know how to fix this problem. Maybe this is software bug ? or broke the microphone ?
p.s. Root installed
Still problem
Hello,
This may be because of Camera issue, there are two microphones in the phone, one is the upper one next to the Earphone Jack and one at the bottom next to Speaker. When we are making a movie from the camera in Landscape mode, phone is switching to the upper microphone, (this is a noise reduction microphone) and when we make a move in Portrait mode, this is switching back to the bottom mic, somehow, when are closing the camera from a Landscape mode, phone is not switching back the mic to the bottom one, and still set for the upper mic, causing a very low sound going out for the phone call, as we are speaking at the bottom and the mic is at the upper portion. When you are turning the speaker, the bottom microphone is turning on, hence the voice is clear at the other end. Try doing a little trick, switch on your camera, record a movie in PORTRAIT MODE for 2 to 3 second and close it. Now try again doing a call, to my understanding this will work, as this works for me. Please update if this works for you as well. Best Regards
Tariq Qayyum said:
Hello,
This may be because of Camera issue, there are two microphones in the phone, one is the upper one next to the Earphone Jack and one at the bottom next to Speaker. When we are making a movie from the camera in Landscape mode, phone is switching to the upper microphone, (this is a noise reduction microphone) and when we make a move in Portrait mode, this is switching back to the bottom mic, somehow, when are closing the camera from a Landscape mode, phone is not switching back the mic to the bottom one, and still set for the upper mic, causing a very low sound going out for the phone call, as we are speaking at the bottom and the mic is at the upper portion. When you are turning the speaker, the bottom microphone is turning on, hence the voice is clear at the other end. Try doing a little trick, switch on your camera, record a movie in PORTRAIT MODE for 2 to 3 second and close it. Now try again doing a call, to my understanding this will work, as this works for me. Please update if this works for you as well. Best Regards
Click to expand...
Click to collapse
THis landscape-portrait camera trick doesn't work on my phone.
My upper microphone works (noise reduction mic works in loudspeaker voice microphone mode). But bottom mic doesn't work. I replaced this mic, then i replaced bottom board and its flex. Nothing helps.
1.8V comes to the mic.

Having issues with 1 of the 2 mics

Hi,
I have the Canadian variant LG g3 running the latest fulmics rom. Everything runs smoothly but with 1 issue.
I believe the mic near IR blaster is broken. Whenever I use speaker or handsfree mode while calling, the person on the other line can't hear me but I can hear them. When I turn off speaker mode, and use it regularly like a phone, it works as normal.
If the top mic is broken, is there an app or a way to disable the top mic and make it use the bottom mic only when turning on speaker mode?
In addition, the app viber works when I turned on speaker/hands free mode. I use viber for long distance calls over WiFi.
Cooro said:
Hi,
I have the Canadian variant LG g3 running the latest fulmics rom. Everything runs smoothly but with 1 issue.
I believe the mic near IR blaster is broken. Whenever I use speaker or handsfree mode while calling, the person on the other line can't hear me but I can hear them. When I turn off speaker mode, and use it regularly like a phone, it works as normal.
If the top mic is broken, is there an app or a way to disable the top mic and make it use the bottom mic only when turning on speaker mode?
In addition, the app viber works when I turned on speaker/hands free mode. I use viber for long distance calls over WiFi.
Click to expand...
Click to collapse
Reinstall stock and then install fulmics again. Sometimes stock is needed to recalibrate the sensors. Don't know why g3's have that problem.

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