Develop Bugs

New s9 dropping and reconnecting Bluetooth constantly (with volume warning)

So for the last 2 days, when connected via Bluetooth to my 2018 ford f150 with latest Sync 3, my s9 keeps dropping the Bluetooth connection to the truck and reconnecting.
I get a message on the dash saying that it is reconnecting to the phone, and on the phone, I get a warning that "maximum volume could damage ears"
The phone defaults to max volume when connected via Bluetooth.
I saw in a samsung Tech forum thread someone said to disable volume syncing within the phones Bluetooth settings, but mine is already off saying the connected device doesn't support it.
Anyone have any similar issues ?
Phone is an international version with the Exonys chipset and was purchased on Sunday.

I have a 2018 Hyundai Elantra that's constantly having issues with Bluetooth with my S9 Exynos as well. Funny thing is, it seems to only disconnect/reconnect whenever nothing is playing through Bluetooth streaming audio. If I have music playing, no disconnects whatsoever. If I pause the music, it'll eventually disconnect. One of my friends with a 2014 Ford Fiesta has the same problem, and his S9 is a Snapdragon variant.
I'm thinking it's a bug with Samsung's ROM.

There are a few Bluetooth options you can change in Developer Options
If you don't know how to enable it:
Settings > About Phone > Software Information > Tap on "Build Number" a few times until it says "You are now a developer"
Go back to main settings screen > developer options should be available at the bottom

I did some more testing and I have a suspicion that it's something to do with the volume warning. The volume iis maxed out by default and can't be turned down while connected to the sync3 system.

TheRealJCole said:
I did some more testing and I have a suspicion that it's something to do with the volume warning. The volume iis maxed out by default and can't be turned down while connected to the sync3 system.
Click to expand...
Click to collapse
Did you disable the "Absolute volume" in Dev options?

TheRealJCole said:
I did some more testing and I have a suspicion that it's something to do with the volume warning. The volume iis maxed out by default and can't be turned down while connected to the sync3 system.
Click to expand...
Click to collapse
MY phone is constantly connected to my Ford Sync and I've never gotten that warning, but I never have my media volume maxed. If you reduce the volume before syncing, does it still drop the connection? After reading again I see that you said max volume is enabled by default and I guess I never noticed that, but I still haven't seen mine disconnect.

I am having this issue in my 2016 F150 with the latest SYNC 3. Did anyone find a solution?

nugget68 said:
I am having this issue in my 2016 F150 with the latest SYNC 3. Did anyone find a solution?
Click to expand...
Click to collapse
youll find that when problems are discussed and possible solutions offered by folks like detection here that threads often go cold as the solution offered often worked and the person who got their answer doesnt come back and report it. Not saying that this is what happened here, but its possible. Go into developer options and disable the absolute volume warning. I always disable that anyways because i like my music loud, i know the dangers and i dont need my phone telling me how loud to listen to music lol i mean, who the hell does my phone think it is anyways??? (kidding on that last part, of course)

A2DP Bluetooth?

I just bought a pair of brand new Bose QC 35II
The A2DP codec gives better audio quality but it's disabled & greyed out on my Pixel 2 XL.
Does anyone know how to enable it?

Some reason your picture isn't loading do you have a Google photo share link?

Maybe now?

gjkrisa said:
Some reason your picture isn't loading do you have a Google photo share link?
I'm looking in the developer Bluetooth codec options and on stock rom dont see that one at all I remember seeing it on the beta rom.
Click to expand...
Click to collapse
..
---------- Post added at 09:47 AM ---------- Previous post was at 09:45 AM ----------
Oh ok so it is on but some reason won't let you turn it off.
Sent from my Pixel 2 XL using Tapatalk

Turning of this option should turn A2DP on.
I'm slightly annoyed tbh lol

To make it switch able I turned off Bluetooth then turned developer mode off then back on without leaving developer mode and it make it switch able
AcidNoteZ said:
Turning of this option should turn A2DP on.
I'm slightly annoyed tbh lol
Click to expand...
Click to collapse
Sent from my Pixel 2 XL using Tapatalk

gjkrisa said:
To make it switch able I turned off Bluetooth then turned developer mode off then back on without leaving developer mode and it make it switch able
Click to expand...
Click to collapse
It worked, but after switching modes, the phone restarted, switched on the option and greyed out again.

A2dp is how you are getting audio to your headphones if it was not on you couldn't get good quality music to them it would sound more like a phone call
Sent from my Pixel 2 XL using Tapatalk

But why is it switched off then?
I mean, it says "A2DP-Hardware-Offload deactivate", so it should mean that A2DP is off, when you turn the option on, am I right?

AcidNoteZ said:
But why is it switched off then?
I mean, it says "A2DP-Hardware-Offload deactivate", so it should mean that A2DP is off, when you turn the option on, am I right?
Click to expand...
Click to collapse
"Bluetooth A2DP hardware offload"
I would assume it means to allow the processing of the A2DP codec streaming to be offloaded to another processor that the CPU. Possible for HW that has specific DACs for doing the Bluetooth streaming. I'm guessing that the Pixel doesn't have additional HW so it's disabled permanently.
From an article about such features on PCs: "Hardware-offloaded audio processing allows the main audio processing tasks to be performed outside the computer's main CPU."
There is an interface is the Android code for a2dp audio sinks so OEM can probably add their own audio processing over the built in one. The dev option might be for them when testing them.

It does say "disable BT-A2DP hardware offload" both in the English version as well in the German version (its deaktivieren not deaktiviert), meaning turning this option on would display "BT-A2DP hardware offload", keeping the option turned off means BT-A2DP hardware offload is active.

Hi AcidNoteZ, I know this is an old thread but did you manage to deactivate the bluetooth hardware offload option? I had the same problem with this. "It worked, but after switching modes, the phone restarted, switched on the option and greyed out again." Thank you in advance

Bluetooth cutting out note 10+

Hi all,
First post here. I've had a good look through all of the thread regarding note 10+ issues and cant see anything that relates to this, so if someone could help me that'd be awesome.
When I listen to audio via Bluetooth, my audio cuts out every 2-3 minutes - sometimes sooner. It does it with youtube and spotify. I have used the same headphones with my galaxy watch and get no issues so it cant be a problem with the headphones.
I have tried turning bluetooth optimization off to increase the Bluetooth power output but that still hasnt had any effect.
I've also made my bluetooth visible in hope that would do something.
I have used bluetooth on my note10+ to connect to Android Auto and had no issues with playing music in my car so surely it cant be a bluetooth problem??
The headphones are the wireless AKGs they were giving away with preorders in Australia..
The latest firmware and software is installed for the headphone.
Any ideas?
Cheers

I would try a few things,
1) Test with another set of headphones anyway as it may be some incomatability
2) If your headphones have an app see if you can change BT profile aptX, LDAC....
3) Test the same apps on speaker, you may be having data interrupts and not BT at all

I have the exact same issue. I have narrowed it down to the bluetooth codec.
1) It does it for me only while I have WIFI tethering activated
2) I can stop the problem from occurring by selecting "AAC" as the bluetooth codec.
3) When you open the AKG app, it returns the codec to "Scalable Codec", so you will need to change it back to AAC again after making EQ adjustments in the app.
To fix:
Settings > About Phone > Software Information > Tap 'Build Number' 7 times. This enables the Developer Options menu.
Settings > Developer Options > Bluetooth audio codec: AAC

millab said:
I have the exact same issue. I have narrowed it down to the bluetooth codec.
1) It does it for me only while I have WIFI tethering activated
2) I can stop the problem from occurring by selecting "AAC" as the bluetooth codec.
3) When you open the AKG app, it returns the codec to "Scalable Codec", so you will need to change it back to AAC again after making EQ adjustments in the app.
To fix:
Settings > About Phone > Software Information > Tap 'Build Number' 7 times. This enables the Developer Options menu.
Settings > Developer Options > Bluetooth audio codec: AAC
Click to expand...
Click to collapse
Thank you. Changing to AAC worked for me too.

Awesome, glad it helped!

Morbsy said:
Thank you. Changing to AAC worked for me too.
Click to expand...
Click to collapse
Out of interest were you using Wifi tethering at the time too? Just trying to pin-point the problem so I can bring it up with Samsung and AKG

millab said:
I have the exact same issue. I have narrowed it down to the bluetooth codec.
1) It does it for me only while I have WIFI tethering activated
2) I can stop the problem from occurring by selecting "AAC" as the bluetooth codec.
3) When you open the AKG app, it returns the codec to "Scalable Codec", so you will need to change it back to AAC again after making EQ adjustments in the app.
To fix:
Settings > About Phone > Software Information > Tap 'Build Number' 7 times. This enables the Developer Options menu.
Settings > Developer Options > Bluetooth audio codec: AAC
Click to expand...
Click to collapse
millab said:
Out of interest were you using Wifi tethering at the time too? Just trying to pin-point the problem so I can bring it up with Samsung and AKG
Click to expand...
Click to collapse
Excuse my lack of understanding, but by WiFi tethering do you refer to my galaxy watch connected to my phone via WiFi? Or just a general WiFi connection on the phone? Other than that I dont use any other WiFi options that i know of.

Morbsy said:
Excuse my lack of understanding, but by WiFi tethering do you refer to my galaxy watch connected to my phone via WiFi? Or just a general WiFi connection on the phone? Other than that I dont use any other WiFi options that i know of.
Click to expand...
Click to collapse
Sorry I mean using the phone as a WIFI hotspot. At work I have this enabled for my personal laptop to access the internet. I found the only time I have these cutouts is when that is active.

millab said:
Sorry I mean using the phone as a WIFI hotspot. At work I have this enabled for my personal laptop to access the internet. I found the only time I have these cutouts is when that is active.
Click to expand...
Click to collapse
No not using it as a WiFi hotspot.

I have a similar issue. M4A files play fine via Bluetooth works fine sony (MDR-ZX770) headphones and yamaha soundbar. But when I try to play on ROIDMI 2S car bluetooth adapter or Bluedio TE earbuds, I get some random sounds. Tried the developer menu option mentioned but it didn't help.
Mine is the Note 10+ Exynos version with September update.

millab said:
I have the exact same issue. I have narrowed it down to the bluetooth codec.
1) It does it for me only while I have WIFI tethering activated
2) I can stop the problem from occurring by selecting "AAC" as the bluetooth codec.
3) When you open the AKG app, it returns the codec to "Scalable Codec", so you will need to change it back to AAC again after making EQ adjustments in the app.
To fix:
Settings > About Phone > Software Information > Tap 'Build Number' 7 times. This enables the Developer Options menu.
Settings > Developer Options > Bluetooth audio codec: AAC
Click to expand...
Click to collapse
it's not working for me can you help me please?

Morbsy said:
Hi all,
First post here. I've had a good look through all of the thread regarding note 10+ issues and cant see anything that relates to this, so if someone could help me that'd be awesome.
When I listen to audio via Bluetooth, my audio cuts out every 2-3 minutes - sometimes sooner. It does it with youtube and spotify. I have used the same headphones with my galaxy watch and get no issues so it cant be a problem with the headphones.
I have tried turning bluetooth optimization off to increase the Bluetooth power output but that still hasnt had any effect.
I've also made my bluetooth visible in hope that would do something.
I have used bluetooth on my note10+ to connect to Android Auto and had no issues with playing music in my car so surely it cant be a bluetooth problem??
The headphones are the wireless AKGs they were giving away with preorders in Australia..
The latest firmware and software is installed for the headphone.
Any ideas?
Cheers
Click to expand...
Click to collapse
Disable global power management.
Circled. The Xed ones aren't needed.

blackhawk said:
Disable global power management.
Circled. The Xed ones aren't needed.
View attachment 5727159
Click to expand...
Click to collapse
from where i can get those menus?

xx-scream-xx said:
from where i can get those menus?
Click to expand...
Click to collapse
Device Care>battery>3 dots in right corner
Or use settings search.

Bluetooth CRACKING/POPPING noises!

Hello everyone.
Since 2 months I know have this "strange" phenomenon that when I connect my Realme 6 Pro to my Bluetooth sound device of my choice, for the first few times connecting there are only popping/cracking noise sounds coming out. No music or anything relatable. After connecting around 5-10 times, it finally will play music (also it suddenly goes back to the cracking state when clicking around in youtube).
Bonus: most of the time (even if connected right and playing music) the microphone wont work in calls.
I cant fix this sh*t and it really bothers me a lot lately.
Hopefully someone can help, or else I´m going to throw this phone into the trash can... xD
Greetings.

My BT works fine for the most part, but sometimes it breaks up. I am really hoping it's just a software issue

Me too, for about 2 or 3 months now. Wasn't a problem before. Thinking I'll try factory reset soon, see if that fixes it.

Hey! I also have this problem and what i found is, if your Bluetooth audio support Aptx codec, it will enable option "Use High Quality Audio" in your audio bluetooth settings. Try to disable (it will use SBC Codec) and my problem disappear.
But, it really annoying. I already try my bluetooth audio with another phone and it worked fine with Aptx, so i know my bluetooth audio is not my problem. My workaround so far are disable high quality audio, then enable Aptx manually in developer options with AVCRP 1.6
Not sure if my device actually using SBC codec or Aptx after change it manually on developer options

Hi All! I solved problems with Bluetooth by switch off Dolby Atmos!

HeavyBrownCat said:
Hey! I also have this problem and what i found is, if your Bluetooth audio support Aptx codec, it will enable option "Use High Quality Audio" in your audio bluetooth settings. Try to disable (it will use SBC Codec) and my problem disappear.
But, it really annoying. I already try my bluetooth audio with another phone and it worked fine with Aptx, so i know my bluetooth audio is not my problem. My workaround so far are disable high quality audio, then enable Aptx manually in developer options with AVCRP 1.6
Not sure if my device actually using SBC codec or Aptx after change it manually on developer options
Click to expand...
Click to collapse
Hi! I solved problems with Bluetooth by switch off Dolby Atmos!

Question Low Bluetooth volume on true wireless earbuds Xiaomi 11T

First, I apologize I'm posting in this forum regarding Xiaomi 11T, but there are no similar cases in it's forum.
So I recently bought Xiaomi 11T, about a month ago, and the volume on my true wireless earbuds is extremely low compared to my older phone (Xiaomi Mi A1), which was running on Android 9. Same is the case when I use earbuds with laptop (and the laptop has a much older Bluetooth version 4.2, I guess). So I looked it up and did find a possible solution but the phone had to be factory reset to solve through that solution, which I don't want to do because it's frustrating doing it all again. *I tried solving (linked below) this by following the steps except the resetting one, but it did not solve this issue. *I have already tried changing the region. I'm in Pakistan, so I changed it to US, India and also restarted and re-paired the earbuds, but it still didn't solve.
So is there any way that I can solve the low volume issue without resetting the phone?
DO NOTE that "Disable absolute volume" option in developer options is TURNED OFF.
Solution which requires resetting the phone
I copy-pasted this from my post in Xiaomi 11T Pro forum, but found no solutions.
So please let me know if any of you know any solutions to this issue.

I'm not an expert, but I remember some things of time ago:
1. EU rom has some limitations for earphones volume due to European regulations, so you would need to change the region or even the rom if this is your case.
2. Disable "absolute volume" in your paired Bluetooth device (your TWS), I know you have disabled it in developer options, but look for that same option in the paired device section.
3. Enable MI Sound Enhancer and try with the different options. It always helps me to improve the audio.
Please share your results, if this doesn't work, I will look for my earbuds and try to remember what I did to fix that.
Add: Also, if your earbuds have integrated volume control buttons, check if the volume control is "synchronized" with the phone, first time I use my earbuds in my Poco F3, the volume of the earbuds and the phone was independent.
Add 2: I take a look at my earphones, if you disabled absolute volume, you need to turn up the volume directly from your earphones. I have enabled absolute volume because of that.

Hi. Thank you for the reply.
1 ) I have tried changing the region and it still was the same.
2) I don't have the option for disabling "Disable Absolute volume" in Bluetooth section paired device section, nor in the advanced settings, as shown in the screenshot below.
3) Mi Sound section is grayed out for me, even when the earbuds are connected.
I did notice that earbuds and phone are not synchronized. Volume of earbuds is adjusted separately to the volume of the phone. So how do I sync them? Please let me know.

White T-Poison said:
Hi. Thank you for the reply.
1 ) I have tried changing the region and it still was the same.
2) I don't have the option for disabling "Disable Absolute volume" in Bluetooth section paired device section, nor in the advanced settings, as shown in the screenshot below.
3) Mi Sound section is grayed out for me, even when the earbuds are connected.
I did notice that earbuds and phone are not synchronized. Volume of earbuds is adjusted separately to the volume of the phone. So how do I sync them? Please let me know.
Click to expand...
Click to collapse
Hi,
To synchronize the volume of both devices, just enable absolute volume again, we already know that's not the problem, so do it.
MI 11T has atmos right? Change sound preset to video and try with the next set up in atmos settings.
Also, you can try disabling "sound enhancement" from game booster options.
If you have enabled absolute volume again, changed the preset to video, tried the setup in atmos settings, disabled the sound enhancement from game turbo, and the issue is not fixed, I can't help you, but I will be pretty sure that the problem will be the earbuds.
Edit: You could play with the sound codecs of developer settings as last resource.

ErickBls said:
Hi,
To synchronize the volume of both devices, just enable absolute volume again, we already know that's not the problem, so do it.
MI 11T has atmos right? Change sound preset to video and try with the next set up in atmos settings.
Also, you can try disabling "sound enhancement" from game booster options.
If you have enabled absolute volume again, changed the preset to video, tried the setup in atmos settings, disabled the sound enhancement from game turbo, and the issue is not fixed, I can't help you, but I will be pretty sure that the problem will be the earbuds.
Edit: You could play with the sound codecs of developer settings as last resource.
View attachment 5565905
Click to expand...
Click to collapse
I enabled "Disable Absolute volume" as you said, and set the preset to Video as well. And this is as close as I could get with the equalizer settings (they're horrible to set). And there is a positive difference than before. But it still isn't as loud as before or with other devices.
And I couldn't find any "sound enhancements" in Game Turbo.
There is no option of Media Volume sync, as it is in Samsung. I tried looking it up and it said that it is now built-in Android 10 onwards? I don't know.
But I tried the earbuds with laptop, and they're so much better, just like before. And I change the Bluetooth codec to AAC, but it automatically reverts back to SBC. I don't know anything about audio or codecs. So any guesses

ErickBls said:
Hi,
To synchronize the volume of both devices, just enable absolute volume again, we already know that's not the problem, so do it.
MI 11T has atmos right? Change sound preset to video and try with the next set up in atmos settings.
Also, you can try disabling "sound enhancement" from game booster options.
If you have enabled absolute volume again, changed the preset to video, tried the setup in atmos settings, disabled the sound enhancement from game turbo, and the issue is not fixed, I can't help you, but I will be pretty sure that the problem will be the earbuds.
Edit: You could play with the sound codecs of developer settings as last resource.
View attachment 5565905
Click to expand...
Click to collapse
I think this option (Adjust sound to earphones) might help, since it looks like media sync option. But I don't know why Mi Sound is grayed out.

White T-Poison said:
I enabled "Disable Absolute volume" as you said, and set the preset to Video as well. And this is as close as I could get with the equalizer settings (they're horrible to set). And there is a positive difference than before. But it still isn't as loud as before or with other devices.
And I couldn't find any "sound enhancements" in Game Turbo.
There is no option of Media Volume sync, as it is in Samsung. I tried looking it up and it said that it is now built-in Android 10 onwards? I don't know.
But I tried the earbuds with laptop, and they're so much better, just like before. And I change the Bluetooth codec to AAC, but it automatically reverts back to SBC. I don't know anything about audio or codecs. So any guesses?View attachment 5565927View attachment 5565929View attachment 5565931
Click to expand...
Click to collapse
First, please resize the images you attached in the comments, are huge.
The "enhanced audio" option is in "Performance mode".
Now I remember MI Sound Option is only available for wire earphones.
Even if disabling Enhanced Audio from Gameturbo don't fix the issue , keep it disabled. If it is enabled, when you start some game or app that use game turbo, the sound turns to sht.
The absolute volume feature must be enabled to sync the volume of both devices.
Honestly, I have no idea what else could you try; well, yes, some equalizers have the option to artificially increase the volume, maybe that could solve the problem in some way.
In my experience, the loudness enhancer of Equalizer FX works very well.
If FX doesn't work, try the app "Boom" by GlobalDelight, It has a free trial, imo is the best app for music (super recommended for windows too), and when I use it, my head explodes if I turn up full volume.
(Picture from Google)

ErickBls said:
First, please resize the images you attached in the comments, are huge.
The "enhanced audio" option is in "Performance mode".
Now I remember MI Sound Option is only available for wire earphones.
Even if disabling Enhanced Audio from Gameturbo don't fix the issue , keep it disabled. If it is enabled, when you start some game or app that use game turbo, the sound turns to sht.
The absolute volume feature must be enabled to sync the volume of both devices.
Honestly, I have no idea what else could you try; well, yes, some equalizers have the option to artificially increase the volume, maybe that could solve the problem in some way.
In my experience, the loudness enhancer of Equalizer FX works very well.
If FX doesn't work, try the app "Boom" by GlobalDelight, It has a free trial, imo is the best app for music (super recommended for windows too), and when I use it, my head explodes if I turn up full volume.
(Picture from Google)
View attachment 5565945
Click to expand...
Click to collapse
Sorry for the huge images. I new to posting threads, so I don't have much experience or etiquettes of threads.
I have turned off Enhanced audio and turned on "Disable Absolute volume", and still audio is not synced. And just increasing the volume isn't my goal. Rather I want it to work properly, as intended.
Anyways, do you think that the solution that I have linked in the original post, would work?

White T-Poison said:
Sorry for the huge images. I new to posting threads, so I don't have much experience or etiquettes of threads.
I have turned off Enhanced audio and turned on "Disable Absolute volume", and still audio is not synced. And just increasing the volume isn't my goal. Rather I want it to work properly, as intended.
Anyways, do you think that the solution that I have linked in the original post, would work?
Click to expand...
Click to collapse
Disable Absolute Volume has to be turned off, not on, I mean, you need to have absolute volume enabled.
Try with FX loudness enhancement, could work.
Idk if the post solution will work, but I think you need to try.