Bluetooth mic not working on stock - Xiaomi Mi 9 Questions & Answers

Have anyone experienced that the Bluetooth mic is extremely low during calls or could point me in the right direction of troubleshooting?
I am running stock, my Skull candy Crushers are working (I checked them on another device).
If I reset the phone they'll work for a while and then replicate the error which lets me believe that it is update related. I haven't been able to find an answer.
It is also not making a difference unpairing and repairing them.

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No incoming or outgoing audio. Anyone ? Anyone ?

Hello. I've been relentlessly searching everywhere for a solution to my plight.
My Diamond touch works fine for the first few incoming and outgoing calls but then all of a sudden there is no incoming or outgoing audio when I make or receive a call. I.E. the call connects but I can't hear the caller and they can't hear me. The phone still rings and caller display still works. Likewise I can still place a call in the normal way. Just no audio in either direction. Soft reset sometimes restores normal operation but sometimes a hard reset is required.
The phone was originally on UK Orange network but is now unlocked and running on UK O2.
I got to grips with flashing quickly enough and I have now tried upteen combinations of roms and radios but nothing seems to help.
Has anyone else had this problem ? Or better still managed to cure it ?
Any help or suggestions would be so so so appreciated.
Oh yeah just in case it's relevent.. The phone seems to work perfectly in every other way. wifi, bluetooth, 3G, gps etc. Battery life is a wee bit pants but I'm not too concerned about that.
Thanks in advance guys !
brianbelfast said:
Hello. I've been relentlessly searching everywhere for a solution to my plight.
My Diamond touch works fine for the first few incoming and outgoing calls but then all of a sudden there is no incoming or outgoing audio when I make or receive a call. I.E. the call connects but I can't hear the caller and they can't hear me. The phone still rings and caller display still works. Likewise I can still place a call in the normal way. Just no audio in either direction. Soft reset sometimes restores normal operation but sometimes a hard reset is required.
The phone was originally on UK Orange network but is now unlocked and running on UK O2.
I got to grips with flashing quickly enough and I have now tried upteen combinations of roms and radios but nothing seems to help.
Has anyone else had this problem ? Or better still managed to cure it ?
Any help or suggestions would be so so so appreciated.
Oh yeah just in case it's relevent.. The phone seems to work perfectly in every other way. wifi, bluetooth, 3G, gps etc. Battery life is a wee bit pants but I'm not too concerned about that.
Thanks in advance guys !
Click to expand...
Click to collapse
M8. I don't think you're on your own on this one. I have the same problem ...or similar. My phone pairs OK but drops the blue tooth connection usually on audio but quite often altogether. Re-pairing is a pain in the A$$. It's definitely a phone issue as I have the older qtek and a nokia that work with my kenwood system without a hitch but pair up the diamond and I'm pulling my hair out after 5 minutes.
I've tried the latest stable radio, setting pin code to 0000 & also turning off security but it still drops connection after an outgoing or incoming call.
Does anyone have a fix for this?
...and jetware 1.3 doesn't solve this either. Installed it the other day and pretty much the same ...audio is fine until a call is terminated and then it drops A2DP but sometimes stays connected on telephone. Other times both drop off!
bt stack
In my case it looks like the BT stack on the diamond is not compatible with the Kenwood DNX8220BT stack. I see quotes that HTC implemented their own stack for the Diamond so could someone put me out of my misery and tell me if it's possible to change the stack to something like that on the wizard as that works flawlessly with my Kenwood satnav?
ADD+
My phone does that weird thing too where I couldnt hear the other person on line. I have manage to found a quick fix for it tho.
Solution 1: During the call (when you notice you cant hear the other person), press the middle circle button (which will activate the screen if dimmed out), then press the speaker icon. This allows you to continue the conversation on speaker with the other person on line without having to soft/hard reset.
Solution 2 (works sometimes): During the call, reduce the volumn, wait a secnd or two, then raise it again.
Bt3030 - Shb6100/7100
Have the same problem with Philips shb7100 and shb6100. i also have tried the Jabra BT3030.
I used and test them on a Tyten and wizard no problem at all.
I had same problem before...found out is hardware problem...sent to htc care and after tat everything ok.
ADD+ said:
In my case it looks like the BT stack on the diamond is not compatible with the Kenwood DNX8220BT stack. I see quotes that HTC implemented their own stack for the Diamond so could someone put me out of my misery and tell me if it's possible to change the stack to something like that on the wizard as that works flawlessly with my Kenwood satnav?
ADD+
Click to expand...
Click to collapse
I have the exact same model (kenwood dnx8220bt and XDA ignito (diamond), same problem where everything is okay but when you go into the contacts menu and try to make a call, BT connection either drops or nothing happens when you try to make the call.... this is a joke.... how can my old HTC P3300 work with it without a problem and this newer Diamond flop like a fish...
any updates or news??
I've the same problem. No Sound after some call or others sounds play. When this happens and if I receive a call the others not listen my voice. This means that when audio disappear, speaker and also microphone not work, like the system can't comunicate with them. The volume control not resolve my problem. I've done HR and with nothing installed in my phone the problem come back again after few minutes. So it's not a problem of third part bad software, but htc orginal software or hardware problem.
Anyone solve it o have idea?
Thanks!
I join the list - having problems with my xcarlink which used to work with my P3300
Tried using A2DP Toggle which helped on the artemis but seems to have NO effect at all on Diamond
The Diamond does connect flawlessly to my jabra earpiece and my Sony ericsson bluetooth speaker
ninja_pimp said:
I had same problem before...found out is hardware problem...sent to htc care and after tat everything ok.
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I have the same problem. Sent my HTC back twice for repair but still no solution. The first time they didn't found the problem, the second time they replaced the speaker.
What did they do with your phone to fix it?
According to this thread http://forum.xda-developers.com/showthread.php?t=431826 it is a hardware issue. The phone needs to go back to the supplier as it is faulty.

Can't hear phone calls (only speakerphone)

Hi.
The problem is that when making or receiving phone calls, no audio can be heard (audio is sent fine) - unless the speakerphone is enabled.
This problem appeared randomly at some point after it had been running a custom WM6.5 build for some time.
The exact same problem is now persisting under ANDROID.
Is this most likely a broken speaker or a software fixable issue?
I'm using the latest available radio and HARD SPL.
Anyone know a way to enable the speakerphone mode by default under ANDROID?
BUMP
I've read in some threads that certain HTC phones have a problem where the USB port thinks that a USB headphone is plugged in and then disables the regular audio, seems the only remedy is jiggling the port which hasn't helped for me..
Is this the problem with my Kaiser?
Any fix or workaround, or at least software hack in Android to make the speakerphone default then
bump!
..........​
Have you hard reset or reflash?
I have hard reset and flashed different OS -
The problem 'appeared' after it was running fine for a long period of time though (with no configuration changes) - so I think that perhaps the problem lies with the mini usb jack as noted in post #2 - but i may be wrong?
aznphatb0i said:
Hi.
The problem is that when making or receiving phone calls, no audio can be heard (audio is sent fine) - unless the speakerphone is enabled.
This problem appeared randomly at some point after it had been running a custom WM6.5 build for some time.
The exact same problem is now persisting under ANDROID.
Is this most likely a broken speaker or a software fixable issue?
I'm using the latest available radio and HARD SPL.
Anyone know a way to enable the speakerphone mode by default under ANDROID?
Click to expand...
Click to collapse
I have same problem which makes very MAD Did you fixed that already? any tips how to solve or even tutorial?
Up.
The same problem with HTC Desire HD on a stock Android ROM 2.3.5 (no custom ROMS tried on this phone yet). Any idea? Any help?

Weird problem with speakers and mic

I have a problem with my unrooted Xperia Z with a locked bootloader. My main speaker does not work for any media like music games or videos, but works fine for loudspeaker calls. Also the earpiece speaker doesnt work at all. Another problem i found was that my microphone would not work at all unless it was in a call and i was using loudspeaker. The final problem is that when ever i plug in my earphones, google now pops up and sometimes my phone starts playing music automatically throught the earphones, when i remove the earphones, instea of stopping the music continues but the speakers dont work so it just keeps playing them silently. If anyone knows the soultion to this, please respond as ive searched everywhere and i have not found one solution yet.
UPDATE: i used the application soundabout to reroute the audio and the calls are now fine, the only problem is that when i plug in my earphones the google now problem persists. If i plug in earphones with a mic, i dont get any of these problems and everytime i want to use my internal speaker for media, i have to manually re-route the audio to them. Anybody know a solution to these 2 problems?
I do have the exact same problem, I tried different ROMs and Audio Mods (at the moment I've got a stock ROM) without any change.
Did you somehow fix it?
Exact same problem, i run stock android 5.1.1 build 10.7.A.0.222 locked boot loader. Problem suddenly came up last week during vacation, quite some time after I did OTA upgrade to 5.1.1 - so this is not related to ROM updates.
After installing soundabout (thanks for the hint) the rerouting did not work immediately - i had to set phone to earpiece and media to speaker in the app and reboot for it have an effect.
I think the root cause is, the phone thinks there are headphones connected, when there really aren't. If I use the UKW radio app, it starts and shows headphones as output-icon right away - it should actually complain that there is no reception without phones because the antenna (headphone cable) is missing. Since it doesn't complain I guess that's the culprit.
Any hints how to fix that, without using a rerouting app? (kinda stupid, using bluetooth speakers and so on now needs a manual setting change in soundabout).
I have that phone for more than 2 years now and used headphones maybe twice with it, so a busted headphone-jack is out of the question too.
Guys give it a try.
Thanks Ess Arr, that really works!

[SOLVED] [Q] Lollipop call audio issues (+ is safestrap compatible with LP?)

Had this issue on all Lollipop ROMs I've tried. My earpiece (+headphone jack) is faulty, so I set all my calls to the loudspeaker. Worked fine on KK and on my first days of Lollipop, but then even speaker stopped working. Being unable to make calls, reverted back to KK, working fine (considering I have de earpiece HW issue). Now switched back to Lollipop and it happened again. Tried routing all audio to speaker with SoundAbout, no results except for the first time after installing the app. Speaker works great for everything else, so I'm suspecting of something about how LP routes HW-related audio (calls coming from the network and, I think, FM radio - never used it in my phones, so I have no clue) and SW-related audio (everything else, which comes from file reading, handled by apps, like music, whatsapp audio and notifications) or some issue with the apps and libs (and whatever else) related to calls.
So I'd like help in the following points:
1. Is it possible to revert everything system-wise related to calls to their KK counterparts? Is there a good reason for it not to work well, theoretically, so I shouldn't even bother trying?
2. In case 1 isn't possible, is there a way for me to check everything that should be working about call audio, see what outputs and stuff like that I was supposed to get, and compare these to the ones I get, on testing? I can provide logcat with SoundAbout on and off, if needed;
3. Since it's only happening in LP, should I suppose that this is something related to the earpiece+P2 jack issue that KK ignored, but LP isn't dealing well with? I'm going for a new jack (I think the earpiece issue is caused by it, because it stopped working about the same time my jack was broken beyond repair) in a couple of weeks and this might be solved, but this issue is driving me crazy already. I could live without the earpiece. I could even live without being able to listen to music on my way to work. But it's really sad to need to revert to KK in order to be able to make calls, with the amazing work devs are doing on LP (tried 3 LP ROMs and fell in love with all of them, visual, speed, functionality and stability-wise).
In case nothing works, I considered multi-boot with safestrap, my current LP as "stock" (I don't know if there is a limitation to actual stock FWs in the stock slot at safestrap, could somebody point me this?) and a KK FW (stock or custom, really don't care in this case) for calling. I make few calls a day, but those are very important, so I could spend some time in KK to make calls if I could reboot to LP and enjoy the best of it. Is it possible?
Thanks in advance for any input. Sorry for the long post (I like to give al the details I can and explain my resolution tries and thoughs on the OP to prevent the need to comment a hundred times) and for the awful english.
If your earpiece and 3.5 mm jack are damaged why don't repair your phone?
Safestrap hasn't been compatible since Android 4.4.
And unfortunately you can't downgrade either, not without likely bricking.
But if you're flashing roms, you must have an unlocked bootloader, so why would you need safestrap?
Oh, There's no way to "multi boot" on the moto X.
CM12 call audio updates seem to fix the issue. Will report back after I get my earpiece replaced.
Sent from my ghost using XDA Free mobile app
Update: the issue seems to happen if one has a damaged earpiece and installs the whatsapp mic fix. So if anyone out there has this issue, you have to choose: call audio on speakers or recording audio on whatsapp. Will report back, but I have been running for a couple days without issues.

Bluetooth calling audio not working (Bluetooth media audio is)

When I first got the new HU it worked fine (actually surprising clear given comments about mics here), but now bluetooth calling doesn't seem to go through the speakers although people on the other end of the line do hear me? Bluetooth streaming of music is fine though which confuses me. Also the sound isn't coming out of the phone itself and the Bluetooth options on the phone have send media and phone checked. So it is like the audio receiving of the call isn't reaching the speakers.
So I am guessing that it seems like something on the software or settings side has got a bit wrong rather than hardware (all I've done there is cut some rear speaker wires to add a hi lo convertor and add power to antenna). Main things I've done on software side since getting this are install add the Xposed Framework, Carservice (uninstalled) , Package Explorer, MTC Keys (disabled) , Xposed MTC (now uninstalled), but I have uninstalled most of this so don't understand how this could be impacting it..
Anyone had anything similar and might know what has caused the bluetooth phone to stop working?
Mine has suddenly decided to stop connecting to Bluetooth at all 90% of the time.
The Bluetooth in these radios is total and utter garbage... that's all I can say.
Went in the car today and everything worked fine!! Very confusing. I'm wondering if it was carservice or one of the other apps after all?
Not sure if it counts but there is a software fix for bluetooth in the Bluetooth mod .. Under hardware mods..
There might be a connection between the Bluetooth stack and other software coming in..
All I know is that this slight change of drivers for us has saved us from doing hardware mods and for now its working perfectly for a number of us..
Check it out if you get problems as a slight chance via settings may fix some of these problems for you.. Worth a try
Sent from my SM-G900I using Tapatalk
dgcruzing said:
Not sure if it counts but there is a software fix for bluetooth in the Bluetooth mod .. Under hardware mods..
There might be a connection between the Bluetooth stack and other software coming in..
All I know is that this slight change of drivers for us has saved us from doing hardware mods and for now its working perfectly for a number of us..
Check it out if you get problems as a slight chance via settings may fix some of these problems for you.. Worth a try
Sent from my SM-G900I using Tapatalk
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Cheers- I'll keep this in mind if it happens again - it definitely seemed like a software issue.

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