Develop Bugs

One X Bluetooth Phone Call Issues (Vauxhall/Opel Corsa link-up)

What's up everybody,
Just posting a thread because one of my best mates bought a black One X on my recommendation because it's a total powerhouse of a handset, except he's having some issues connecting it over bluetooth to his car.
He's got a lovely brand new 12 plate Vauxhall (in the UK, Opel elsewhere and i assume they all use the same software) Corsa with a built-in Bluetooth car kit. His phone connects fine, he can even dial from the steering wheel and start the call, but all audio takes place through the phone speaker. We've tried pairing, unpairing, playing around with a whole host of bluetooth settings, but call audio always takes place through the phone speaker rather than the car itself.
This was never the case with his old Nexus S, or my HD7, but our teacher's One X and another friend's One X have the same problem: no audio routes itself through the car's speakers.
Does anybody have a solution? Has anybody got a similar problem?

HTC one X
Hi, the problem is an app called "car". It takes control when ever you connect your phone to a car kit. Open the app, it has a steering wheel above it and click on the settings, where it displays the bluetooth symbol. Un-click all the auto launch and auto connect settings. That should cure it.

please help..
Hi,
Guys I am having the same issue in my one x version 4.0.3. I can't pick up calls and talk straight from my car's speakers . i have first to pick up from the from and switch the speaker to htc speaker then I have to switch the phone to my car speaker again. At this point the call is heard through the car's speakers. !! PLZ HOW CAN I FIX THIS ??

Me Too!
My car does this too, only way to get sound is go into the menu on the car and tick "Free Speech"
Hoping 4.0.4 or 4.1 fixes this!
HTC's advice was return the phone....

same problem with samsung galaxy s2
Hi everyone, i am having the same problem with a samsung galaxy s2 and a opel corsa 2010. it connects, i can dial numbers, i can make phone numbers but i can't hear anything and nobody can hear me. if i un check the freespeech box it automatically uncheck the headseat on the phone.
so if anyone found any solutions i would appreciate if they post the solution.

sainttarry said:
Hi, the problem is an app called "car". It takes control when ever you connect your phone to a car kit. Open the app, it has a steering wheel above it and click on the settings, where it displays the bluetooth symbol. Un-click all the auto launch and auto connect settings. That should cure it.
Click to expand...
Click to collapse
the app does not seems to be present in 4.2.2 is there any other way for fixing the settings, I realy would like to have music over bluetooth

These are responses to the SGSIII I made, but they are JUST as relevant here
Hope they help!
http://forum.xda-developers.com/showthread.php?p=26959345#post26959345
http://forum.xda-developers.com/showthread.php?p=26830352#post26830352

Android head unit (Pumpkin KD-C0224) - Sound stopped working via music/video player

Hi All,
I have recently experienced an issue where the sound has stopped working (not going through car speakers) when in music, video or navigation app.
This used to work perfectly.
Sound works normally when CD inserted
Sound works normally when using radio app.
Video app plays video - but no sound.
Music app plays the mp3 tracks - but no sound - can see the progress bar moving along (music (mp3) on SD card - 8GB formatted FAT32)
Also have issue with the BlueTooth - connects to phone but seems to be around wrong way - it appears the head unit thinks it is in phone handset mode when it is not - as result can hear people talking through the car speakers but they cannot hear me unless i toggle handset mode, but then people can hear me talking, but i cannot hear them...
I suspect for whatever reason the audio out is being directed to Blue tooth or whatever
Has anyone else come across this issue, and if so is there a solution?
Device
Pumpkin 2-DIN
KD-C0224
MCU version: MTCB-KLD-V2.02
Model # : S07
Android Version: 4.2.2_01092014

Have you tried making your phone and the head unit forget each other?

NYCAR said:
Have you tried making your phone and the head unit forget each other?
Click to expand...
Click to collapse
Yes I have - same result
Have also tried
- resetting unit - factory reset
- pulling the power on unit for
Whatever the issue it appears to be persistent between boots....
Now there is another issue - won't display the feed from the reversing camera
The head unit switches into camera mode, but displays message "No Signal"

davek76 said:
Hi All,
I have recently experienced an issue where the sound has stopped working (not going through car speakers) when in music, video or navigation app.
This used to work perfectly.
Sound works normally when CD inserted
Sound works normally when using radio app.
Video app plays video - but no sound.
Music app plays the mp3 tracks - but no sound - can see the progress bar moving along (music (mp3) on SD card - 8GB formatted FAT32)
Also have issue with the BlueTooth - connects to phone but seems to be around wrong way - it appears the head unit thinks it is in phone handset mode when it is not - as result can hear people talking through the car speakers but they cannot hear me unless i toggle handset mode, but then people can hear me talking, but i cannot hear them...
I suspect for whatever reason the audio out is being directed to Blue tooth or whatever
Has anyone else come across this issue, and if so is there a solution?
Device
Pumpkin 2-DIN
KD-C0224
MCU version: MTCB-KLD-V2.02
Model # : S07
Android Version: 4.2.2_01092014
Click to expand...
Click to collapse
To offer you the best customer service, we will send you the return address for full refund of your order.
I also have a Pumpkin KD-C0224 head unit and it works really great, does way more than you need it to do. (http://www.amazon.co.uk/Pumpkin-Capacitive-Multi-touch-Navigation-Multimedia-y/dp/B00OB90SOY/)
1. About the sound issue, perhaps there is something wrong inside of the unit.
2. About the Bluetooth, you can try settings-》backup&reset, then do the “factory data reset to see if it can help.
3.About the "No Signal", I have encountered this issue and Pumpkin sent a video instruction http://www.youtube.com/watch?v=lu8maRNrtlk
PS:You can ask for help from Pumpkin and customer service has been very good.

Android 4.4.4 Car Unit S07 sound problem
Hi to all,
I have a similar problem. My device is a Universal 2-DIN, Model: S07
Lately I had a problem with sound coming from sd-card. The quality of sound was good enough for some time and few minutes later, the sound coming only from one speaker, then transfered to another speaker then the listening becomes very bad and suddenly comes back very good as in the beggining.
That was in the past because now there is no sound at all.
More specific:
I have sound in Bluetooth, CD-DVD, Radio and the touching clicks (on device).
No sound at all from the device such as NAVI apps, in 2 sd-card slots and 3 USB's (2 back, 1 front). Of course I see video but without sound and the music plays mp3 once more without sound
I have already done the following:
I opened the device, unplug and plug-in again all the ribbon cables. Factory reset in Android 4.4.4, upgrade to 5.1 lollipop with reset to factory settings again, and finaly downgrade back to Android 4.4.4 with reset to factory settings again. The problem is still the same.
Is it damaged ribbon cable ? or other hardware problem ? because I don't think that is a software problem. Any opinion is helpfull.

Bluetooth issues

Hi. Wondering if anybody could help. When I connect my oneplus 5T to my car I have problems. When it starts to call it disconnects the bluetooth from the car completely. However the call continues on the phone which is a complete pain as you cant use it through the hands free. Car is a BMW 630CI with pro nav if that helps.
Many Thanks

i first had problems to connect to my audi A3 bluetooth ... it simply didn´t find it
after trying again and changing the bluetooth audio codec it suddenly worked ...
Idk if it will work for you, but you can try changing the codec and se if it helps

Hi. Ive tried all 3. It connects fine and I can see my contacts but as soon as I hit dial it disconnects from the car.
Very strange.
Thanks for the suggestion tho

with mine in my car it every now and then gives me this a crackling sound.. Kind of irritating, I'm hoping a software update down the road fixes this.. I've tried all 3 codecs

Having issues with Bluetooth connection on my Prius Prime as well. It always disconnects, I had to disable Bluetooth on the phone and re-able it for it to work.
I experience the same with my Boss QC35. First connection, audio breaks with lots of noise and had to disable it and re-enable it.

Still found no solution. Hope the next update sorts it out as the bluetooth seems a mess.

So after looking around, there are issues with certain codecs and devices connecting being posted in the OP community forums. My Sony WH1000xm2 headphones stutter when using AptX HD. My JBL Everest 750NC's - if you turn the volume up too high, they disconnect from the phone. In my Cadillac ATS, whenever you place a call it'll stay connected, but you won't hear anything, and the other user can't hear you either.
I think they've acknowledged the issues and are working on them, but after putting Oreo on my Moto G5 Plus and Oreo's ability to change between all codec's on the fly (including native LDAC support!) I'm anxiously awaiting Oreo to be 'officially' released.
I'd say just be patient.. I'm sticking with this phone because I think it'll be worth it in the end. Wish I had better news!

so I resolved my Bluetooth issues by flashing FreedomOS. Now there is no intermittent crackling sound now and there is no issues at all ymmv, this was just my experience.

Thanks. Will wait for Oreo and then try different roms if it continues.

on FreedomOS before, it was giving me headache re-connecting to my Subaru car bluetooth, like after you shutoff engine, go somewhere and come back, unless you manually force connecting to the car, it barely auto reconnect back.
And also takes so long to get data sync from my Fitbit chargeHR to the app.
I don't think this kind of bluetooth issue related to what rom we have but the kernel and more specifically BT firmware.
-----edit-------
My friend also got BT issue when he tried to connect to BT headset. Hope Oneplus get something fixed on new oreo or updates

Just an update. Since upgrading to the official Oreo rom my problems have disappeared and my phone now works fine with the car Bluetooth.
Chris

I still have problems. Pause and unpause, and the track restarts. After ending a phone call the track restarts. 2018 RAM, Uconnect

With stock ROM 4.7.2 bluetooth connected only for a few seconds with my Audi A6. With every following stock ROM version it didn't even connect.
I tried every single Audio-Codec and the different settings in developer options - nothing helped. Once I cleared data & cache from the bluetooth system apps followed with a soft brick

Hi all,
Had same issues with my Hyundai ix35 and oneplus 5t (Nougat), tracks skipping, distorted audio in calls, etc... Tried emptying bluetooth cache, switching audio codecs without success. Now I just received the OTA update to Oreo (8.0), Oxygen rom 5.0.3 and it solved the issues!!! Yeay, no more auxilary cable hanging around !

fx_viper said:
Hi all,
Had same issues with my Hyundai ix35 and oneplus 5t (Nougat), tracks skipping, distorted audio in calls, etc... Tried emptying bluetooth cache, switching audio codecs without success. Now I just received the OTA update to Oreo (8.0), Oxygen rom 5.0.3 and it solved the issues!!! Yeay, no more auxilary cable hanging around !
Click to expand...
Click to collapse
I started from scratch but the issue persists.

I am having the same issue in my car. It no longer displays track information and the connection is not very stable. I will try switching the codec and report back.

i don.t have any volume control from the phone basically when i connect it to my car stereo
i can control the volume for the first 4-5 clicks ... and then the slider moves but there is no difference in the volume
i have to turn the volume from the stereo almost to the max
whit my old samsung tablet works great ... i have maybe 50% more volume then with my phone
tried all codecs ...

Bluetooth and Car Audio

Anyone else having issues with connecting the 7T to their car and getting audio going out of it? My OG Pixel didn't have a problem, but I have to toggle off/toggle on Bluetooth and then manually tap the car's bluetooth listing to get it to actually 'connect' the audio portion.
Rather annoying, considering I'm only in the car for a few minutes at a time, this either eats into the time entirely, or makes me sit in my car for a couple minutes before even driving to fiddle with the bluetooth settings.
Car has stock headunit, 2015 Evo X. Like I said, original Pixel XL had no issues, but this is annoying. I've tried changing bluetooth versions to no avail. I can see it connecting and dropping the bluetooth connection fairly frequently while staring at it and trying to 'get it going'. But once it connects, it stays there.
My bluetooth headphones (Some knock off cheap Chinese ones for $20) don't seem to have an issue.

My connection to my aftermarket stereo is fine. Just seems a little quieter than my last phone. Connecting is kind of slow too when I start my car but it is automatic.

I don't have any issues with connecting to all 3 cars (2014 Honda Accord, 2009 Pontiac G8 Gt and a 2018 Honda Fit) but I do agree that the volume seems a little lower than my previous phone (Galaxy S8).
Sent from my [device_name] using XDA-Developers Legacy app

Hmm. Weird. Is there anyway I can check for logs to find out what exactly is happening? I haven't rooted, just don't know if it's something I can naturally pull from Android as a whole.

I had the same issue, but when I made the phone discoverable and initiated bt from the car stereo it seemed to work.
I also set a custom pin , not the default 0000

My bluetooth is quiet, but its also static-y. I never had any issues with my G6 and now I get static clipping every 10 or so seconds. Its unbearable.

jagadeesh16 said:
I had the same issue, but when I made the phone discoverable and initiated bt from the car stereo it seemed to work.
I also set a custom pin , not the default 0000
Click to expand...
Click to collapse
I'm not really having an issue pairing it, but it's just connecting after pairing is the problem.
I have changed the default pin. I can see it popping up and down the car stereo a few times in the bluetooth settings before it just gives up.
As for the other issues, I'm not having a problem at all with audio volume, nor popping/static when it finally does connect.

My volume is super low when connected to Android Auto and streaming music. Have to turn the radio up to max. However, I'm assuming that's an AA issue or Android issue, as it seems many others are having the same problem with different phones. Been thinking of adding an aftermarket amp to the car. Maybe I should pull the trigger. Lol

Phreak411 said:
My volume is super low when connected to Android Auto and streaming music. Have to turn the radio up to max. However, I'm assuming that's an AA issue or Android issue, as it seems many others are having the same problem with different phones. Been thinking of adding an aftermarket amp to the car. Maybe I should pull the trigger. Lol
Click to expand...
Click to collapse
Be careful that a bugfix doesn't come and blow your eardrums out, lol.

Milkshakes00 said:
Be careful that a bugfix doesn't come and blow your eardrums out, lol.
Click to expand...
Click to collapse
LOL that would be my luck
.

My OnePlus 7t connects fine and phone works for calls on 2014 cts. The sound comes out of phone can change song on head unit but I can't get audio to play through car. Anyone else get this?

Yeah music stutters with car player... Only calls work. Music works on headphones etc. I couldn't find solution, did network reset, cleared cache. Nothing works.

Seriously!
I've wasted at least two hours already trying all the recommended steps: from flicking icons on and off to a full phone reset.
Still no connection to my Suzuki S-cross car. Multiple previous phones have connected effortlessly.
Even the $50 temporary five year old borrowed phone could handle it.
Anyone got any other suggestions? Yes, tried the AVRCP setting change from 1.4 to 1.6. That didn't work either...
Barebones system reset from scratch running O2 OS 10.0.6HD65AA
Any suggestions greatly appreciated.
I need to be able to talk and drive!

Reset the car radio and clear all pairing data if you can. Then try again.

autosurgeon said:
Reset the car radio and clear all pairing data if you can. Then try again.
Click to expand...
Click to collapse
Thanks for the suggestion.
Tried that.
Tried one other car - no problems.
Tried a tablet and a very old phone with the car and suprise - the car's bluetooth seems to be the problem.
I will try and find out if I can fix the car!
UPDATE: Morale of the story - read the car manual very very carefully and go though each tedious step = SUCCESS

mikefnz said:
Thanks for the suggestion.
Tried that.
Tried one other car - no problems.
Tried a tablet and a very old phone with the car and suprise - the car's bluetooth seems to be the problem.
I will try and find out if I can fix the car!
UPDATE: Morale of the story - read the car manual very very carefully and go though each tedious step = SUCCESS
Click to expand...
Click to collapse
Yep most have lots of tedious steps that are different model to model and if not followed exactly will cause this problem on occasion..

In my case music starts to be scrambled after 10 minutes or so of listening. When I take the phone (so the watch pops up) or turn on the screen it immediately works fine again, but when being put aside and the screen turns off, the issue starts again ..
Also in the early days of my previous 5t I had the same issues but some fix was delivered together with oxygen os update. And now the same story again

I have a different issue with Bluetooth:
- OP7T connects to car Bluetooth fine
- I can make/answer calls
- Bluetooth media works fine
The problem is with Google Assistant & car audio:
- it was working as intended until the latest update - 10.0.15 - I was pressing the button on the steering wheel the google assistant was answering questions through the car bluetooth, no need to switch to bluetooth media.
- after the latest update, when I press the button on the steering wheel, Google assistant pops on the phone , starts to answer question, but cuts off after 5 seconds. the command still goes through and Assistant still runs, but does not come up on the car audio.
- it looks like the Assistant is not connecting to the car as a hands free, but as to a bluetooth handsets.
Anyone experiencing this?

Eonon GA5153F call quality problem

Hi everyone. I ask you for help because I am a GOLF 5 owner with an Eonon GA5153F installed (which should be an MCTB) originally with Android 4.4.4 which I then brought to version 5.1 with a rom
The problem he has always had is related to the audio quality in calls. Until I used it, I used the hands-free phone and that's it, but now that my wife uses it, I prefer to be careful while driving and therefore call and do everything via the car radio. The problem is that the audio I get is really HORRIBLE. Practically whoever is on the other side of the phone hears nothing, hears 1 word every 5 and at a very low volume (I've already gone to the factory settings and turned up the bluetooth but nothing changes).
I've read that many of these Chinese have made hardware changes, removing the capacitor and resistor on the bluetooth module or similar, but I can't find anything about my car radio. Have any of you done this? Does anyone of you have photos, videos or something that tells me on mine which component I have to desolder, which track to open, or what to do?
Please because the quality that this car radio has on call is really a shameful thing!
Thanks a lot to everyone
P.S. Currently I have connected (in the back of the car stereo) an external microphone (the one that was inside the car stereo package)