SM-J710MN Bluetooth Snafu - Samsung Galaxy J7 Questions & Answers

I have a 2016 Chevy Trax. No issues whatsoever pairing the Bluetooth with my J7. Listen to music from the phone, take calls, messages get notified through car speaker etc.
Then I noticed about a week ago...the phone connection stopped working. I discovered it was not only my car, but Bluetooth headset too.
I can pair my phone. Music will play. If I get a message I can hear it. If I have Google Maps on I can hear the voice.
However, if the phone rings, I can not hear it. If someone is on the other end. They say they can hear me. I hear nothing.
If I press "Speaker" on my phone, I can hear the person through the phone and they can hear me. However as soon as I turn the Bluetooth back on...I lose them. In my car it says going to Private Mode....and I can hear through the phone. But as soon as I reconnect to the Bluetooth....I hear nothing.
I have tried everything...to no avail. Took out the battery for soft reset. Found all the Bluetooth apps in the "system apps" setting. Deleted all the caches. Disabled "Ok Google". Only thing I have not done is a factory reset. Last resort.
My wife has the exact same phone. Hers acts the same. Leads me to believe it is from the last update which happened a week or so ago.
I hope this makes sense and I hope someone can help!
Mike

I am having the exact same issue. Appears the call sound and mic aren't working. This update was to Samsung Experience 9.5

Same here. Bluetooth calls in my car stop working after last android update. No sound on call from both sides.
I'd tryed some suggestions from post on the web but nothing seems to work.
Waiting for a solutions from Google or Samsung.

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[Q] Dialtone issue for Outgoing call on bluetooth -Android 5.0

Hi all,
As the title suggests, everytime when I am making a call on blueooth (car), the ring\dial tone will stay silent for the rest of the process until the call is connected. I have also looked into the settings menu under sounds but with no help, tried deleting and repairing the devices and no luck. Is anybody else experiencing this problem and better yet, found a solution for this?
My friend is also experiencing same issue and we are using Ford car Bluetooth connection.
Also happens on my Nexus 4 newly upgraded to lollopop.
Fine for incoming calls but silent for outgoing. Switching to speakerphone on the device then back to bluetooth seems to manually make it route the call through the bluetooth handsfree but is obviously very unsafe.
Suprised more people havent mentioned this issue!
Managed to find a fix? 5.0.1 doesnt sort it sadly.
Finally I see someone acknowledging the issue.
Nope, could not find any fix and surprisingly no one is mentioning this issue anywhere. Experts in this forum should help us with some solution.
Got the workaround
MTIH1992 said:
Also happens on my Nexus 4 newly upgraded to lollopop.
Fine for incoming calls but silent for outgoing. Switching to speakerphone on the device then back to bluetooth seems to manually make it route the call through the bluetooth handsfree but is obviously very unsafe.
Suprised more people havent mentioned this issue!
Managed to find a fix? 5.0.1 doesnt sort it sadly.
Click to expand...
Click to collapse
You can put the source of the audio system to Bluetooth audio and you should be able to hear the dialtone. Afcoure your call end buttons on audio system will not work while on dialtone. After the phone is picked-up the buttons start working

Problem with one of the microphones - P20, EML-L29 4GB, 128GB.

Hello guys! I have EML-L29.
I have strange problem with one of the mics - the one which is closer to the earpiece, top of the phone. So the problem is that the mic is very quiet - i think its responsible for when you change to loudspeaker, when you have phone call or viber, whatsup etc call, video call on loudspeaker. So i have to speak very close and quite loudly so that the person can hear me.
The strange thing is that it works normally when i say OK Google and Hey google. If I say this things, no matter how loud, i can tell them very quetly and the mic still pick up the voice, then i can ask Assistant what i want and again the mic picks everything how it should. But when i try manully to voice search, or manully to ask Assistant something, againt the mic brokes and can't pick up my voice normally, i have to be very close to it and speak very loudly.
I had this problem with EMUI9, updated to EMUI10, stil got it, fully factory reseted it, still no change.
For what i searched on the net i saw that the top mic is part of the motherboard, so its pretty much no point of changing it.. the bottom mic is on its own board, so its easy job.
Still i dont know if its hardware or software issue. Its very strange, normally it dont work, but when voice call the Google Assistant it starts working as it should.
I will be very grateful if someone knows anything about this or some tips on how i can deal with it
Thank you!

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I should have clarified, I'm wondering both who does and who doesn't have this issue. Please comment even if yours works perfectly.
Samsung support seemed to suggest it was a software issue thar might be able to be fixed in a future update but I'm not sure if its an issue for anyone other than me.
Maybe you should take a look at this topic https://forum.xda-developers.com/t/...hange-default-behavior.4369423/#post-86031957

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