Develop Bugs

Stereo not working.

Hi. I searched the forum's and couldn't find anything so here's my problem. I don't seem to be getting stereo output from my tablet.I have tried two headphones and downloaded a few stereo test from youtube and all they are all in mono . I've also been to the tablets settings and everything seems fine there.And before you ask, yes the plug is pushed in all the way.Thanks for any help.

what about stereo through the built-in speakers?

Same thing, mono sound through speakers as well.

Update: Stereo working now. I had to reset the tablet. Thanks for all your help.

krico said:
Update: Stereo working now. I had to reset the tablet. Thanks for all your help.
Click to expand...
Click to collapse
Good to hear.
As I was poking around on my tablet, I noticed an accessibility setting that sets the audio to mono, and I thought of your thread.

Is your tablet the 10.1 2014 edition because i didn't see any setting like that on mine.

krico said:
Is your tablet the 10.1 2014 edition because i didn't see any setting like that on mine.
Click to expand...
Click to collapse
Yes, it's a new P605. It took me a long time to find it again, as it's in the accessibility settings, not the sound settings.
Settings -> Device -> Accessibility. (Then scroll down to see mono mode).
Yeah... Really easy to find

Lol, thanks dude. You get a thumbs up for that one. I can't believe I missed that in the settings. Obviously I wasn't looking hard enough but thanks again so if it ever happens again, (which shouldn't have happened at all) I'll know where to look.

I also have the same problem. I have the P605 version of tab. I've already ticked and unticked the mono/streo in accessibility but my output for built in speaker is still mono. Only the left speaker is functioning and the right isnt. For the headset, both produces sounds. I cant remember I installed something that have caused this.

Anyone who would like to answer my previous post?

O update and bluetooth audio

So I had been on the beta version since it was released and participated a few times in the thread here: https://forum.xda-developers.com/pixel-xl/how-to/android-o-beta-issues-t3609335 and others were having the same issue.
The issue is no song/artist information being displayed on my touchscreen stereo, and I cannot use the stereo to pause/skip to the next track (I have to do it through my phone). Ive tried a local audio player, Google Music, and Pandora all to no avail. The deck is a Pioneer double-din AVH-P8400BH.
In my daily car, my phone bluetooth name appears and I can change song ect thru the deck. It is not a touchscreen and it probably 10 years old.
Ive gone into the bluetooth settings and have tried changing the AVRCP from 1.4 to 1.6 (neither work), and audio codec from default to enable optional (neither worked).
Anything else I should try out?
TIA

Please add your experiences to this website... they currently have over 100 replies of this issue and some other Bluetooth issues. https://productforums.google.com/fo...eDphsoOJ4;context-place=forum/phone-by-google

I had the same issue, but a simple unpair and forget from both devices then repair fixed my problem

marcjc said:
Please add your experiences to this website... they currently have over 100 replies of this issue and some other Bluetooth issues. https://productforums.google.com/fo...eDphsoOJ4;context-place=forum/phone-by-google
Click to expand...
Click to collapse
Ill throw in my comments, thanks for the link!
mjc2251 said:
I had the same issue, but a simple unpair and forget from both devices then repair fixed my problem
Click to expand...
Click to collapse
Ill have to give this a shot!

mine has awful streaming. It has so many skips...snags...audio blanks...whatever term you want to call it....its not "uninterrupted".
I was hoping google IMPROVED Bluetooth. I don't understand why they have this struggle to be honest. Its 2017....Bluetooth is not new technology.
Maybe they should stop expanding their department to provide data to the government to spy on private citizens using smart devices, and they would use those resources to fix bluetooth

Pioneer brand head units in particular I have seen Bluetooth streaming issues when paired to flagship model phones for years...even back as far as my LG G3. I got a Kenwood head unit instead, never had an issue.
As far a the Pixel XL and BT streaming...I have only had issues with dropouts zap sounds or pops, when i am out mowing my back property with my tractor...phone in pocket and BT headphones on. But my previous phones did this...most certainly due to the railroad nearby and high rise high voltage power lines and towers that are above me in that area.

speedingcheetah said:
Pioneer brand head units in particular I have seen Bluetooth streaming issues when paired to flagship model phones for years...even back as far as my LG G3. I got a Kenwood head unit instead, never had an issue.
As far a the Pixel XL and BT streaming...I have only had issues with dropouts zap sounds or pops, when i am out mowing my back property with my tractor...phone in pocket and BT headphones on. But my previous phones did this...most certainly due to the railroad nearby and high rise high voltage power lines and towers that are above me in that area.
Click to expand...
Click to collapse
Pioneer uses a cheaper bluetooth and never updates the firmware of the chips to fully support the available Bluetooth profiles even when they are developing their units and new profile updates are available. I have had a very long and annoying history with them to the point where I was in direct contact with their build team after all my complaining. That was back in 2012. Never used another of their products again. :good:

I have the same issue on my Chevy Colorado 2017. Everything works fine on Spotify on my Huawei Mate 9, and iPhone 7. It also worked fine on 7.1.2. Spotify works and music comes through but no info is displayed. I unpaired both things with no success. Frustraring.

I tried unpairing mine as well, no luck either

stupidchicken03 said:
I tried unpairing mine as well, no luck either
Click to expand...
Click to collapse
Have you tried unticking "media" in the profile hitting ok, going back in and ticking media again?

pcriz said:
Have you tried unticking "media" in the profile hitting ok, going back in and ticking media again?
Click to expand...
Click to collapse
I have not. Ill give it a shot today.

No idea if this problem is related or not but might be worth a check if you have time. First time I put Oreo on my phone it was fine. Then I screwed something up and just ADB flashed the image again. Everything was fine until I tried bluetooth a few days later. It wouldn't connect until ticking that media box many times. Then I flashed the image again and it worked fine again.

So I just got the 8.0 OTA (not on beta). I see in the dev options that it shows what BT codec it is using.
I have noticed that only the option "Bluetooth AVRCP Version:" is the only value that changin it does it stick. The other setting appear to be on auto and revert to auto depending on what device u pair supports.
My first test on my Kenwood KDC-BT762HD it paired fine and it said it was using AptX. Streamed for a few min fine. Then after I got back in the car and it auto paired, music started skipping every several seconds. I turned radio off then on to repair it and it started streaming fine again....but was using SBC according to Dev options.
When I changed AVRCP version to 1.6.....it connects and uses AptX fine. However, the radio display no longer displays the BT media metadata(title/artist), but the controls on the radio still work. I change to AVRCP ver 1.4 and that restores metadata, but then it uses SBC again. (using ver 1.5 results in SBC and no metadata).
I don't really care about the song info not being displayed on my radio....but definitely seems to be something fishy with BT in this new update.
EDIT Update: so now I am noticing it auto re-connecting and using SBC all the time now. WOnt use aptX unless i delete the device and re-pair it. then it works for a few reconnects, but then drops to sbc cagin.

Thanks for posting, I won't be updating. The Bluetooth has never been right and now seems to have regressed.
Sent from my SM-T280 using Tapatalk

i think i'm having slightly fewer drop outs with oreo than with nougat. my moto x pure on marshmallow was really bad.

FZ1Darren said:
i think i'm having slightly fewer drop outs with oreo than with nougat..
Click to expand...
Click to collapse
i agree and although i dont get the proper song listing on my car stereo it seems everything else is better. on nougat my BT headset i use for work all day (moto buds) would often stop connecting properly and i would make a call and have to select "phone" then "headset" again to get audio back on headset and om Oreo it happens less frequently

fletch33 said:
i agree and although i dont get the proper song listing on my car stereo it seems everything else is better. on nougat my BT headset i use for work all day (moto buds) would often stop connecting properly and i would make a call and have to select "phone" then "headset" again to get audio back on headset and om Oreo it happens less frequently
Click to expand...
Click to collapse
If you switch to a rom that uses the CAF based bluetooth (all lineageos based ones should, crDroid does for sure as that is what I use) implementation this won't happen. Still haven't been able to track down exactly why, but for now I'm sticking with CAF based ROMs to avoid this.

Do any of you guys having this issue have an Android wear watch? I've had heaps of issues with Bluetooth streaming being all "jittery" and just skipping since the update. However, I found this is basically completely fixed when I turn my android wear (LG urbane) off, or at least the Bluetooth on it.
Tried all the developer options for BT but hasn't made a difference. At the moment, my solution is turning off BT on my watch when I'm listening to music. Bit crap but it works.
I have factory reset the watch and cleared BT cache on pixel.
Any other ideas?

Is anyone else still having problems with Bluetooth on Oreo? I was hoping the official 8.1 release would help me, but I'm seeing no change. I have a Kenwood BT952HD, and experience issues similar to what the OP describes. Audio is plays fine, no unreasonable stuttering. But I get no song info, and can't skip tracks. Also, the pairing isn't as automatic. Every time I turn on the car, I have to wake the phone up, and wait for the pairing to complete, which takes longer than usual.
I've tried playing with the AVRCP settings, along with clearing registrations at both ends and repairing, with no luck. Is anyone else still seeing similar issues?

8.1 working fine with my Kenwood BT762HD. I use PowerAmp v2 alpha build 704 app.

Audio not being muted by Nav software

hi,
hoping someone can help.
i bought a Xtrons android 7.1 unit for my Skoda Superb in ebays 20% sale after christmas.
Its stayed fairly standard so far, other than me uninstalling the original DAB app, and installing the Zoulou's excellant DAB+ App to work with my DAB dongle, since then i have install the copilot sat nav app from the app store.
my problem is that when copilot deliver voice directions, the DAB+ app isnt being muted or lowered in volume, so its getting a bit of a mess when its delivered mu;ltiple instructions or long ones when someone else is talking on the radio.
Has anyone got any ideas what might be causing that, i have gone into the xtrons setup and changed the default nav app to co-pilot, and tried changing the settings for muting the audio, but they dont seem to e making any changes.
thanks

sning said:
hi,
hoping someone can help.
i bought a Xtrons android 7.1 unit for my Skoda Superb in ebays 20% sale after christmas.
Its stayed fairly standard so far, other than me uninstalling the original DAB app, and installing the Zoulou's excellant DAB+ App to work with my DAB dongle, since then i have install the copilot sat nav app from the app store.
my problem is that when copilot deliver voice directions, the DAB+ app isnt being muted or lowered in volume, so its getting a bit of a mess when its delivered mu;ltiple instructions or long ones when someone else is talking on the radio.
Has anyone got any ideas what might be causing that, i have gone into the xtrons setup and changed the default nav app to co-pilot, and tried changing the settings for muting the audio, but they dont seem to e making any changes.
thanks
Click to expand...
Click to collapse
Did it ocurred with the original DAB app?
does occur obly with DAB app, or with other apps?

Hi,
I didn't have copilot installed until after I installed dab+.
I'll try Bluetooth and normal radio in the morning and get to you.
Thanks

Hi,
I tried copilot with audio from Bluetooth and fm radio, the audio from those sources isn't muted or lowered when copilot delivers a direction.
In the android contol panel nav section I tried mixed set to 1 and 10, and separate, with no differences.
Any ideas?

I think I had problems with Copilot as well so ended up using Waze

sning said:
Hi,
I tried copilot with audio from Bluetooth and fm radio, the audio from those sources isn't muted or lowered when copilot delivers a direction.
In the android contol panel nav section I tried mixed set to 1 and 10, and separate, with no differences.
Any ideas?
Click to expand...
Click to collapse
try other Navigation software like Tomtom or Sygic or Waze if that still occurs. Try first with the option of default navigation software unselected and secondly with the specific app selected
If worked it seems a Copilot specific issue

Steering wheel control issue

Hello
I am having problem with controlling the steering wheel control to next/pervious the song.
The radio and the music of the rom is working fine but when using other apps like Spotify, YouTube playlist... Etc is not working I have to do it on screen. Is there anything I can do in settings?
Btw Iam using 4.4.4 malaysk rom rk3066.

Hello! Were you able to fix the problem? I have a similar issue with my car, when I go to Spotify and start playing a song, I can go to the prev/next track but as soon as I leave the app, I can no longer go to the prev/next track. I can do it from the notification but not from the steering wheel or the controls on the face of the headunit. Also, whenever I try to skip a song from any of the buttons, I also lose control of the volume. So, I'd love to know how you fixed it if you have fixed it.

charackthe said:
Hello! Were you able to fix the problem? I have a similar issue with my car, when I go to Spotify and start playing a song, I can go to the prev/next track but as soon as I leave the app, I can no longer go to the prev/next track. I can do it from the notification but not from the steering wheel or the controls on the face of the headunit. Also, whenever I try to skip a song from any of the buttons, I also lose control of the volume. So, I'd love to know how you fixed it if you have fixed it.
Click to expand...
Click to collapse
Being an mtcb, since posted in mtcb forum, suggest time to buy a newer unit to update your old mtcb unit, such as a FYT based unit uis7862

marchnz said:
Being an mtcb, since posted in mtcb forum, suggest time to buy a newer unit to update your old mtcb unit, such as a FYT based unit uis7862
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Click to collapse
I see. Upon further testing my problem seems to be android related. I can't skip songs if I don't have the app open on screen. Had this with one of my previous phones too and it fixed itself one day. We shall see.

Problem with the can bus Citroen C4 assembly of a dedicated Chinese Headunit.

Hi
I have a problem with the can bus
ciytroen c4 assembly of a dedicated chinese.
The problem appears after plugging the radio into the cube after the serial one, namely the canbus module beeps pulsating. I will add that the radio turns on, receiving stations, they can be operated.
I will add that after configuring the module in the radio settings, the steering wheel buttons work this way. means there is communication and it still squeaks. I tried to insert the bundle with the module also squeaks.
watch it

kolaaa3 said:
Hi
I have a problem with the can bus
ciytroen c4 assembly of a dedicated chinese.
The problem appears after plugging the radio into the cube after the serial one, namely the canbus module beeps pulsating. I will add that the radio turns on, receiving stations, they can be operated.
I will add that after configuring the module in the radio settings, the steering wheel buttons work this way. means there is communication and it still squeaks. I tried to insert the bundle with the module also squeaks.
watch it
Click to expand...
Click to collapse
Hi
If you didn't manage to solve the problem yet...
You need to setup the can bus decoder in your head unit and then the beeping will stop.
If you need help just ask!
Cheers

StevoVTS said:
Hi
If you didn't manage to solve the problem yet...
You need to setup the can bus decoder in your head unit and then the beeping will stop.
If you need help just ask!
Cheers
Click to expand...
Click to collapse
Hi
thanks for the hint
one problem solved
there are more of these problems
- does not show the open door
-no possibility to control car functions
- air conditioning control does not work

kolaaa3 said:
Hi
thanks for the hint
one problem solved
there are more of these problems
- does not show the open door
-no possibility to control car functions
- air conditioning control does not work
Click to expand...
Click to collapse
Hi,
I'm dealing with the same problems.
Some of the car functions you can change over the car settings app.
And there should be a car info app which shows fuel consumption.
I'm still using the OEM multiscreen with steering wheel to change car settings.
But when using that I have the issue that all OEM displays get off and on during driving.
I'm trying to find a solution.

StevoVTS said:
But when using that I have the issue that all OEM displays get off and on during driving.
I'm trying to find a solution.
Click to expand...
Click to collapse
I have this problem too
There will also be information and oil change
every now and then kompyer performs a system test itself
what is your can bus decoder model?

kolaaa3 said:
I have this problem too
There will also be information and oil change
every now and then kompyer performs a system test itself
what is your can bus decoder model?
Click to expand...
Click to collapse
Yes the system diagnostics are running too.
I have a Raise can bus decoder G-PSA-RZ-65
I have 3 of them and with all the same problems.

StevoVTS said:
Yes the system diagnostics are running too.
I have a Raise can bus decoder G-PSA-RZ-65
I have 3 of them and with all the same problems.
Click to expand...
Click to collapse
I have a PSA-RZ- 15 decoder
I saw a video on youtube where everything worked
in the comments, the author wrote that he was using the PSA-RZ- 01 decoder
how do you set the can on the radio??

kolaaa3 said:
I have a PSA-RZ- 15 decoder
I saw a video on youtube where everything worked
in the comments, the author wrote that he was using the PSA-RZ- 01 decoder
how do you set the can on the radio??
Click to expand...
Click to collapse
I bought a PSA-RZ-01 decoder. This one doesn't work with my android HU. Maybe I'll try the Hiworld decoder. Really annoying

Are these MTCB type head units?

Did anybody find a fix for this problem.
I have the same problem with the citroen c4 doing a selftest while driving.
And it keeps resetting the small display

sanas24 said:
Did anybody find a fix for this problem.
I have the same problem with the citroen c4 doing a selftest while driving.
And it keeps resetting the small display
Click to expand...
Click to collapse
Is it an MTCB unit or hotboxing

marchnz said:
Is it an MTCB unit or hotboxing
Click to expand...
Click to collapse
It is the Srnubi T10 with MCU: TS10.1.1 android 11
https://nl.aliexpress.com/item/4001276007928.html

sanas24 said:
It is the Srnubi T10 with MCU: TS10.1.1 android 11
https://nl.aliexpress.com/item/4001276007928.html
Click to expand...
Click to collapse
Not MTCB, wrong forum

marchnz said:
Not MTCB, wrong forum
Click to expand...
Click to collapse
True, but I think the problem is related to the canbus module. So wanted to check if someone with similar problems did find a fix

Hi to all. I finally got a newer Andeoid version for my headunit and now all informations I need or I expected are showing on my headunit.
Everything before the update wasn't shown now appears like doors open informations, ECU fault codes, fuel informations and consumption, AC informations everything is shown like a popup information. And all that withe the Rais canbus decoder. The small original display I kept cause of the missing informations on the headunit is now not needed any more.
If someone still have problems with the canbus all you need is to update your andeoid unit to the actual version for your unit.

Can you advise what your canbuse settings are ?
Inside of the factory menu ?
I just installed a android T10 unit with a Raise canbus module. But only thing that is working on my Citroen C4 are the volume buttons...and even that does not work correct. I i press the menu button on my steering wheel sound also go up

StevoVTS said:
Hi to all. I finally got a newer Andeoid version for my headunit and now all informations I need or I expected are showing on my headunit.
Everything before the update wasn't shown now appears like doors open informations, ECU fault codes, fuel informations and consumption, AC informations everything is shown like a popup information. And all that withe the Rais canbus decoder. The small original display I kept cause of the missing informations on the headunit is now not needed any more.
If someone still have problems with the canbus all you need is to update your andeoid unit to the actual version for your unit.
Click to expand...
Click to collapse
Could you tell what exactly Android Unit do you have?

StevoVTS said:
Hi,
I'm dealing with the same problems.
Some of the car functions you can change over the car settings app.
And there should be a car info app which shows fuel consumption.
I'm still using the OEM multiscreen with steering wheel to change car settings.
But when using that I have the issue that all OEM displays get off and on during driving.
I'm trying to find a solution.
Click to expand...
Click to collapse
Hi, i have the same problem. Do you find something, how to fix this problem with resetting displays?

StevoVTS said:
Hi to all. I finally got a newer Andeoid version for my headunit and now all informations I need or I expected are showing on my headunit.
Everything before the update wasn't shown now appears like doors open informations, ECU fault codes, fuel informations and consumption, AC informations everything is shown like a popup information. And all that withe the Rais canbus decoder. The small original display I kept cause of the missing informations on the headunit is now not needed any more.
If someone still have problems with the canbus all you need is to update your andeoid unit to the actual version for your unit.
Click to expand...
Click to collapse
do you mean the newer version of the headunit or can.apk? I have done both and despite selecting different models the problem exists.. (My MCU starts CVD)
czaja1998 said:
Hi, i have the same problem. Do you find something, how to fix this problem with resetting displays?
Click to expand...
Click to collapse
Have you gone to Car Settings under factory and selected the relevant file under Can Setting? R011 is for Citroen C4 where the steering keys work fine, however my instrument panel keeps flicking between kmph and mph..
R016 works fine but only volume buttons work and the display screen thinks CD or radio is on.. (see picture)

scotcruz said:
do you mean the newer version of the headunit or can.apk? I have done both and despite selecting different models the problem exists.. (My MCU starts CVD)
Have you gone to Car Settings under factory and selected the relevant file under Can Setting? R011 is for Citroen C4 where the steering keys work fine, however my instrument panel keeps flicking between kmph and mph..
R016 works fine but only volume buttons work and the display screen thinks CD or radio is on.. (see picture)
Click to expand...
Click to collapse
In my android radio version, I didn’t see anything like “R0..” When I choose version of canbus “raise” -> psa/Citroen -> I have only models of car and I get C4L. Everything works like steering wheel buttons but I have problems with resetting displays and appearing diagnosis.