Develop Bugs

Bluetooth connectivity

I have a Pioneer deck in the truck and I can easily connect via bluetooth and play music, however, I cannot hear the calls in or out. My note will connect but again, no sound. I have reset the deck and even cleared the bluetooth cache/data to no avail. Anyone ever had this issue/resolved it?

*bump (sorry)
Anyone?

mexigga said:
*bump (sorry)
Anyone?
Click to expand...
Click to collapse
Sorry buddy I don't have a solution for you, but I got the same issue only thing I noticed is that whenever I text comes in the deck will lower the volume for sec and just continue playing.

mexigga said:
I have a Pioneer deck in the truck and I can easily connect via bluetooth and play music, however, I cannot hear the calls in or out. My note will connect but again, no sound. I have reset the deck and even cleared the bluetooth cache/data to no avail. Anyone ever had this issue/resolved it?
Click to expand...
Click to collapse
I'm not sure if you have check this yet but bluetooth devices typically support a number of profiles dependant on what the device supports. Go into your phone bluetooth settings, verify that your bluetooth connection to your Pioneer deck is set to allow both call audio and media audio by tapping on the gear on the right for the Pioneer deck bluetooth config on your phone.
If not toggle the setting.

freduser said:
I'm not sure if you have check this yet but bluetooth devices typically support a number of profiles dependant on what the device supports. Go into your phone bluetooth settings, verify that your bluetooth connection to your Pioneer deck is set to allow both call audio and media audio by tapping on the gear on the right for the Pioneer deck bluetooth config on your phone.
If not toggle the setting.
Click to expand...
Click to collapse
And if that doesn't work, try unpairing and repairing.

That too!

Viryllo said:
Sorry buddy I don't have a solution for you, but I got the same issue only thing I noticed is that whenever I text comes in the deck will lower the volume for sec and just continue playing.
Click to expand...
Click to collapse
NO worries - appreciate the answer.
freduser said:
I'm not sure if you have check this yet but bluetooth devices typically support a number of profiles dependant on what the device supports. Go into your phone bluetooth settings, verify that your bluetooth connection to your Pioneer deck is set to allow both call audio and media audio by tapping on the gear on the right for the Pioneer deck bluetooth config on your phone.
If not toggle the setting.
Click to expand...
Click to collapse
douger1957 said:
And if that doesn't work, try unpairing and repairing.
Click to expand...
Click to collapse
I'll give it a go, thanks bud.

Bluetooth audio codec: does not stick

I keep on setting the audio bluetooth codec under dev optioons on "aptx" but after exiting the option goes back on "default".
Anyone can help?

thegios said:
I keep on setting the audio bluetooth codec under dev optioons on "aptx" but after exiting the option goes back on "default". Anyone can help?
Click to expand...
Click to collapse
Mine doesn't appear to stick either, but when I use my BT speaker I see an option in the connect dialog to use the Qualcomm aptX driver even though the codec is set to default (SBC). I don't see this aptX option when using my car or earbuds. I know this doesn't really help much, but I thought it was relative. I do know that the AVRCP setting does stick. Have you looked in the Google Issue Tracker? I'll go and star the issue if I can find it.
Edit: It is THERE listed as closed due to lack of data, feedback. Seems they ignored the obvious.... codec selection not sticking?

How do you tell if aptx is working while you're playing something to say a wireless speaker?
Sent from my Pixel 2 XL using Tapatalk

pixelsquish said:
How do you tell if aptx is working while you're playing something to say a wireless speaker?
Click to expand...
Click to collapse
In BT settings I see a toggle for Qualcomm aptX and it's on... but in Dev Ops the BT codec still says Default: SBC. I think the audio codec setting there is busted, but the phone seems to use the best available codec. The device is a Creative (Soundblaster) Roar BT speaker. Now if I could only get the phone to auto connect to my car kit. Stays paired but will only manually connect which is a real pain.

v12xke said:
In BT settings I see a toggle for Qualcomm aptX and it's on... but in Dev Ops the BT codec still says Default: SBC. I think the audio codec setting there is busted, but the phone seems to use the best available codec. The device is a Creative (Soundblaster) Roar BT speaker. Now if I could only get the phone to auto connect to my car kit. Stays paired but will only manually connect which is a real pain.
Click to expand...
Click to collapse
Hmmm. My JBL Flip 4 is paired and it can use aptx but no option there. Weird.
My fm transmitter car kit will connect automatically, as long as it's set for media and phone calls.. Is yours just set for media only?

pixelsquish said:
Hmmm. My JBL Flip 4 is paired and it can use aptx but no option there. Weird.
My fm transmitter car kit will connect automatically, as long as it's set for media and phone calls.. Is yours just set for media only?
Click to expand...
Click to collapse
Yes, I've tried every combination there. It was working perfect with the N6P, and has never worked with the P2XL. Car kit is the absolute cheapest Chinese one you can find on Ebay... audio only, BT version 2.0 I think with no phone mic lol. Time to pony up and get a newer/better one. Had not considered FM transmitter because my car has the line in AUX. in my console so I can hide it.... It's about the size of a matchbox. This is a first world problem I know, but really annoying to me, and I know it's the phone because the Nexus was working for a year no problems. Thanks for your response.

v12xke said:
Yes, I've tried every combination there. It was working perfect with the N6P, and has never worked with the P2XL. Car kit is the absolute cheapest Chinese one you can find on Ebay... audio only, BT version 2.0 I think with no phone mic lol. Time to pony up and get a newer/better one. Had not considered FM transmitter because my car has the line in AUX. in my console so I can hide it.... It's about the size of a matchbox. This is a first world problem I know, but really annoying to me, and I know it's the phone because the Nexus was working for a year no problems. Thanks for your response.
Click to expand...
Click to collapse
We are both very frustrated here. Me cause I know I have an aptx capable device and am not getting to use it. You because you can't do a simple auto connect via bluetooth. Oy! Come on January update!

see my post here for a similar issue that I was able to workaround fairly easy
TLDR: You need root, edit your build.prop (using text editor, some app from the play store, etc) and change the following key: persist.vendor.bt.a2dp_offload_cap
by removing -aac from the string.
I'm sorry if it looks like I'm spamming I just encountered this issue on a lot of forums with no result and I do hope that this will help some

disable bluetooth a2dp hardware offload?

I have searched here and the Google, with no joy.
I was browsing DEVELOPER OPTIONS and ran across a setting, that I do not know if ON or OFF is best.
SETTINGS > DEVELOPER OPTIONS > NETWORKING > DISABLE BLUETOOTH A2DP HARDWARE OFFLOAD
I am unsure which was default and could not find the benefits of either selection.
Any info or suggestions would be greatly appreciated. Thanks!

pizza_pablo said:
I have searched here and the Google, with no joy.
I was browsing DEVELOPER OPTIONS and ran across a setting, that I do not know if ON or OFF is best.
SETTINGS > DEVELOPER OPTIONS > NETWORKING > DISABLE BLUETOOTH A2DP HARDWARE OFFLOAD
I am unsure which was default and could not find the benefits of either selection.
Any info or suggestions would be greatly appreciated. Thanks!
Click to expand...
Click to collapse
According to this article the default is off, but it does not say what the purpose of the toggle is.

v12xke said:
According to this article the default is off, but it does not say what the purpose of the toggle is.
Click to expand...
Click to collapse
Thanks! At least this confirms what I thought.
I think I inadvertently turned it on, while scrolling. I believe that's why I noticed it, in the first place, because the switch was blue and obvious.

Did you ever figure out what the purpose of the toggle is?

I looked at this a while ago https://forum.xda-developers.com/showpost.php?p=78362981&postcount=10
Different manufacturers/Models of phones have it disabled or it resets when the phone starts. This could be to do with them implementing their own audio processor (DAC/Chip/etc) for processing the audio. It has no effect when changed according to anyone that's bothered to trying it.

Thanks for the update.

It will affect gapless playback on GPM (dont know about other services) with Bluetooth headphones ( dont know why)

enabling this feature helped me fix a low volume problem on a Bluedio T6 bluetooth headphones.

I want to know exactly what this is too. I only know that it makes music track transitions on GPM gappless. I found that suggestion on Reddit when I was trying to listen to Dark Side of the Moon and the damn gaps kept ruining my chill. :laugh:

I'm using a Xiaomi Redmi Note 3 running Derpfest (android 9 pie) rom.I toggled it off and it asked me to restart my phone.So I did and now it's greyed out.Plus I noticed a slight difference in audio quality while using my BT earphones.Any way of turning it back on or I'll have to live with the consequences?

Yeah at the bottom of dev settings you can reset all to default.

CyberFibre101 said:
I'm using a Xiaomi Redmi Note 3 running Derpfest (android 9 pie) rom.I toggled it off and it asked me to restart my phone.So I did and now it's greyed out.Plus I noticed a slight difference in audio quality while using my BT earphones.Any way of turning it back on or I'll have to live with the consequences?
Click to expand...
Click to collapse
This happened to me too. To fix this, in the developer settings menu, toggle Developer Options off then without leaving that screen, toggle it back on again. Scroll down and you should be able to toggle that setting off.
Worked for me on my LG V-40

Not able to turn off A2DP
Hi,
I have flashed pixel experience on Redmi 6 Pro.
It is currently updated to android 10.
This is causing me to have no audio in my tws Bluetooth earphones.
I am not able to turn off A2DP feature in the phone. When I do it asks me to restart my phone and after restart it is already ON again.
Kindly need help
---------- Post added at 12:32 PM ---------- Previous post was at 12:20 PM ----------

Hi,
I have flashed pixel experience on Redmi 6 Pro.
It is currently updated to android 10.
This is causing me to have no audio in my tws Bluetooth earphones.
I am not able to turn off A2DP feature in the phone. When I do it asks me to restart my phone and after restart it is already ON again.
Kindly need help.

Jugalgore said:
Hi,
I have flashed pixel experience on Redmi 6 Pro.
It is currently updated to android 10.
This is causing me to have no audio in my tws Bluetooth earphones.
I am not able to turn off A2DP feature in the phone. When I do it asks me to restart my phone and after restart it is already ON again.
Kindly need help.
Click to expand...
Click to collapse
i also have this issue, it reverts back when restarting

Dont bother about this
I recently bought an earphone which supports LDAC so i was testing every settings and experimenting all the developer options available, i came across this option and when i disabled it my earphones stopped playing audio like even if tracks were playing i couldn't hear anything and when i turned it back on everything was normal again.....but if u really wanna give yourself a heartattack you are welcome to try have a great day ; )

suri1607 said:
Dont bother about this
I recently bought an earphone which supports LDAC so i was testing every settings and experimenting all the developer options available, i came across this option and when i disabled it my earphones stopped playing audio like even if tracks were playing i couldn't hear anything and when i turned it back on everything was normal again.....but if u really wanna give yourself a heartattack you are welcome to try have a great day ; )
Click to expand...
Click to collapse
When disabling it you have to restart your phone and of the feature is working it will remain off and your headphones will work

google voice stopped to work when i turned on this option.

most of you are toggling an option without knowing what it does.
Shouldn't be better understanding exactly what it's for ?

Don't toggle it on, here's why...
How to Disable Bluetooth A2DP Hardware Offload - Steps
In this article, we explain how to disable Bluetooth A2DP Hardware Offload with step by step instructions for Android devices and smartphones.
www.google.com

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 LDAC greyed out

I have a pair of Sony WF100 XM4's on want to use the LDAC setting on the phone. I go to Dev options, but it's greyed out. Is there anyway I can resolve this? I've seen another thread which isn't the 6 Pro that says you have to reset your wireless settings or something similar. Do I have to do this?

I have exactly the same pair of headphones and have been wondering the same some time ago.

LDAC works 100%
mightywhites29111971 said:
I have a pair of Sony WF100 XM4's on want to use the LDAC setting on the phone. I go to Dev options, but it's greyed out. Is there anyway I can resolve this? I've seen another thread which isn't the 6 Pro that says you have to reset your wireless settings or something similar. Do I have to do this?
Click to expand...
Click to collapse
what does Sony say about the issue?
LDAC works on the 6 Pro (I have different headphones and BT DACs, as do many others) but not Sony's.
have you tried deleting the headphones from BT settings, resetting the Sony's and re-pairing?
If "HD Audio" doesn't show up in the Bluetooth Device Details for the Sony headphone (where you see Contacts, Phone Calls and Media Audio), then it won't show up in developer options.

Alekos said:
LDAC works 100%
what does Sony say about the issue?
LDAC works on the 6 Pro (I have different headphones and BT DACs, as do many others) but not Sony's.
have you tried deleting the headphones from BT settings, resetting the Sony's and re-pairing?
If "HD Audio" doesn't show up in the Bluetooth Device Details for the Sony headphone (where you see Contacts, Phone Calls and Media Audio), then it won't show up in developer options.
Click to expand...
Click to collapse
I have unpaired and repaired - makes no difference. HD Audio is selected in Dev options, but LDAC greyed out. I haven't contacted Sony about the issue yet, but will do some Googling to see if it's an issue with these earphones first before contacting them. I am not sure what your last paragraph means?

mightywhites29111971 said:
I have unpaired and repaired - makes no difference. HD Audio is selected in Dev options, but LDAC greyed out. I haven't contacted Sony about the issue yet, but will do some Googling to see if it's an issue with these earphones first before contacting them. I am not sure what your last paragraph me
Click to expand...
Click to collapse
mightywhites29111971 said:
I have a pair of Sony WF100 XM4's on want to use the LDAC setting on the phone. I go to Dev options, but it's greyed out. Is there anyway I can resolve this? I've seen another thread which isn't the 6 Pro that says you have to reset your wireless settings or something similar. Do I have to do this?
Click to expand...
Click to collapse
My LDAC headphones will work in 990 mode but only with the screen off, otherwise the sound skips. It works fine in 660 mode with the screen on. I've tried different fixes but nothing has worked. The only time LDAC is greyed out on my phone is when the headphones aren't on and connected.

I Googled it and found this:
https://www.sony-asia.com/electronics/support/articles/00264224
So followed that and it shows that LDAC is on so why doesn't it show in Dev options?

mightywhites29111971 said:
I Googled it and found this:
https://www.sony-asia.com/electronics/support/articles/00264224
So followed that and it shows that LDAC is on so why doesn't it show in Dev options?
Click to expand...
Click to collapse
So you installed the app? On my headphones, not Sony, I needed their app to get LDAC to show....

I had the app previously because I had the XM3's. Its not obvious in the app until you see the instructions I posted. It's still greyed out in Dev options which I don't get.

You maybe need to enable quality mode in Sony headphones app. My xm3 working good. But only in adaptive ldac settings

I had Quality mode enabled even before and it was still grayed out. Went to Stable mode and back to Quality mode and its still grayed out.

mightywhites29111971 said:
I have unpaired and repaired - makes no difference. HD Audio is selected in Dev options, but LDAC greyed out. I haven't contacted Sony about the issue yet, but will do some Googling to see if it's an issue with these earphones first before contacting them. I am not sure what your last paragraph means?
Click to expand...
Click to collapse
So LDAC will show up in the bluetooth information for the device, for example: HD Audio: LDAC, but only if LDAC is enabled on the device through an app or natively (but its usually an app)

It looks like I got it working, but only in 660kbps mode. Go 990 and it skips all over the show. Also, every time I connect the headphones I have to change the setting to 660 in Dev options. Isn't there an option to save it to this setting for my Sony's because I can't seem to see it!

How or what did you do to make it work at least in 660 kbps ?

mightywhites29111971 said:
It looks like I got it working, but only in 660kbps mode. Go 990 and it skips all over the show. Also, every time I connect the headphones I have to change the setting to 660 in Dev options. Isn't there an option to save it to this setting for my Sony's because I can't seem to see it!
Click to expand...
Click to collapse
My P6P always defaulted to ”best effort”. Then I installed the Sony apps on my phone and selected high quality. Even though I don't have Sony earbuds, when I connect my LDAC earbuds it defaults to 990. This would be fine if 990 actually worked...

Is there any way to get it to default to 660?

mightywhites29111971 said:
Is there any way to get it to default to 660?
Click to expand...
Click to collapse
I haven't found a way to do that. It would be nice if the update that's coming out in a few hours would fix the LDAC 990 problem but I'm not holding my breath.

Matterhorn said:
My LDAC headphones will work in 990 mode but only with the screen off, otherwise the sound skips. It works fine in 660 mode with the screen on. I've tried different fixes but nothing has worked. The only time LDAC is greyed out on my phone is when the headphones aren't on and connected.
Click to expand...
Click to collapse
Disable Wi-Fi it will fix stuttering. For me it runs smooth on 990 Xperia 1 III

LDAC works for me on the Sony WH-1000XM3 out of the box.

OH MY F* GOD. Disabling "Connect to 2 devices simultaneously" enabled LDAC. That's so dumb and someone should have said about that.
You can disable it in Sony Headphones app under System tab.

Matterhorn said:
I haven't found a way to do that. It would be nice if the update that's coming out in a few hours would fix the LDAC 990 problem but I'm not holding my breath.
Click to expand...
Click to collapse
It's still broken, unfortunately. 990kbps has constant disconnects. Sort of defeats the purpose of the nigh bitrate codec. I wonder why google has such poor development with each of these updates.