Database Users

Bluetooth Car Connection

I have a problem where my HD2 does not work properly with my Land Rover Freelander 2 in-built bluetooth car kit.
The HD2 pairs with the car and I can search my phone book, see my last dialled number, I can even dial a number, BUT, the phone does not connect properly - the car radio should cut out and phone audio come through the car speakers, but instead the radio just continues to play. And shortly after the call is connected to the other party the line is terminated.
My Nokia phone works perfectly with my car, but this phone does not. Even my Sony Ericsson Xperia X1 did not for properly with the Freelander 2.
I did manage to make one successful call, but after I stopped and restarted the car, the problem returned!! Arghhhhhhhhhhhhhhh!
So, does any one know of a fix? Surely hands free/car kit is a standard?
Help!

same problem here. i have a bluetooth car stereo. Always worked fine with my previous HTC's. But now with the HD2 i get the exact same problems as you... I think it's software bug. i have rom version 1.43.404.1 NLD
i hope this gets sorted out cause i use bluetooth audio streaming a lot in the car....same for handsfree calling

Paired it with my Pioneer FH-P80BT on my way to sell my 3GS and recieved a call. Got the same issue as described above - just a bug i presume.

I'm experiancing similar problems. All works fine (incoming call's or outgoing call's) but they get disconnected randomly it seems. I'm using a JVX NX7000 by the way. No problem with my iPhone. Hope they fix it soon!

I tested it with my BMW Idrive last night which is notoriously difficult and it worked fine, I was really surprised tbh! But was able to recieve and make calls, the stereo cut out and could see the phone book too. With my N82 i was only ever able to make/receive calls.

Same problem - Jaguar XF - it docks ok but I have to initiate calls from car (vs phone). Just some weirdness going on...
glenner05 said:
same problem here. i have a bluetooth car stereo. Always worked fine with my previous HTC's. But now with the HD2 i get the exact same problems as you... I think it's software bug. i have rom version 1.43.404.1 NLD
i hope this gets sorted out cause i use bluetooth audio streaming a lot in the car....same for handsfree calling
Click to expand...
Click to collapse

Mercedes brutality
I have a new Mercedes C, and when the HD2 is connected over bluetooth I get an extremely loud, strange ringtone when receiving a call. It is so loud it could really make your shoes go off.
Also it is none of the ringtones available to choose from, inside the phone - it sounds more like a BIOS beep from a PC and hits me while the normal ringtone is playing as well.
It definitely comes from the phone, not from the car stereo. I have not figured out how to resolve this, I think it is outright dangerous for unprepared drivers.

I have a Nissan Pathfinder; it paired ok, and dials from the Pathy without probs. Ringtone is ok too. Sound quality seems better than my old Tytn so all in all v happy.
Doesn't stream music, but that's Nissan's fault, not HTC.

Works fine with the Ford BT system in the Ford Focus (2009).

HTC HD2 Pairing with a Freelander 2 - SUCESS!!!
Success!!!
So far so good, I applied a known change to the HD2 registry and I am now making and answering calls without fuss!
Change Registry setting:
HKEY_LOCAL_MACHINE\Software\Microsoft\Bluetooth\Sys
Add the DWORD setting COD=5374476
This makes devices see the HD2 as a 'Normal' phone.
Hope this helps everyone.

graemenwallace said:
Success!!!
So far so good, I applied a known change to the HD2 registry and I am now making and answering calls without fuss!
Change Registry setting:
HKEY_LOCAL_MACHINE\Software\Microsoft\Bluetooth\Sys
Add the DWORD setting COD=5374476
This makes devices see the HD2 as a 'Normal' phone.
Hope this helps everyone.
Click to expand...
Click to collapse
Hello i have same problem with my BMW X5. Can you explain better your steps ?

graemenwallace said:
Success!!!
So far so good, I applied a known change to the HD2 registry and I am now making and answering calls without fuss!
Change Registry setting:
HKEY_LOCAL_MACHINE\Software\Microsoft\Bluetooth\Sys
Add the DWORD setting COD=5374476
This makes devices see the HD2 as a 'Normal' phone.
Hope this helps everyone.
Click to expand...
Click to collapse
Interesting, I have a similar problem with my 2009 BMW 3 I explain here (sorry I posted before discovering this thread) and I'll try your registry tweak.
But you say that it is "a known change" to the HD2, could you tell us where you saw it ? Is there another discussion about the BT stack somewhere or more generaly about the Widcomm implementation in the HD2 ?
The HD2 being so recent and in short supply, I'm a bit surprised something like that is "well known"
Thanks for your help.

It works !
graemenwallace, I just tried after applying your tweak and... OMG, this is AWSOME man, it just WORKS !
I still just have one gripe though, it seems that the car doesn't always receive the RF level correctly at the first connection. Sometimes it sees the phone as having no carrier at all (no bars in the RX level display), preventing the car to make any calls, but as soon as I receive a call, the level resets to full bars and I can pick the call and make calls myself after that.
When the first call comes in, I can see the display with no bars and a "?" appearing on top of it for a short time before it becomes full bars.
So there is still some compatibility problems, but at least now I can pick-up incoming calls without risking my life.
So I suppose you are a potential life saver then
Thanks mate,
Yves.

Bluetooth is working YES with JVC KD-AVX44 ADV49
After the registry tweak from graemenwallace the bluetooth connection is working properly with my car radio (JVC KD-AVX44/KD-ADV49).
The phone functions ok now (incoming & outgoing calls) Also the AD2P connection is super (very good sound)
Also the ID3 tags are functioning (didn't function with the X1 Xperia)
I see the track title now into the JVC display
Skipping etc. all is functioning. I will tell HTC about it because I have a ticket running for this issue. I think they have to solve this issue
Big thanks for this trick

By doing a little search on the net, it seems like graemenwallace suggested that this problem is not new with smartphones that identify themselves as such.
The tweak above forces the BT stack of the phone to identify itself as a standard phone instead of a smartphone.
What's puzzling is that my BMW handsfree worked with other smartphones so far, including the iphone.
Anyway, it's ok now, but I wonder what bad press this will cause to HTC.
The majority of the users are unaware of this kind of wizardry and this justs adds up to the long list of bugs of the HD2.
When I first got the phone a few days ago I was rapidly convinced to return it immediatly as it's fancy interface wasn't enough to overcome all the shortcomings. It was plain unusable as a business phone.
Now after applying most of the tweaks, it begins to show potential, but HTC really has to work on the problems we can't fix by tweaking the registry.

I tried this also, but for me it didn't work.
But my situation is a bit different, as I am not able to connect the HD2 through the Sim Access Profile with my car, which is an Audi A6 mit Bluetooth preparation and I have also the Audi rSAP Adaptor installed in the centre arm rest.
My problem is, that I get a connection to the car, but SAP does not activate and I can't get access to my phonebook - so I only have kind of a handsfree profile...
Am I right that you all use the handsfree profile in your cars and no SAP?

jah said:
Works fine with the Ford BT system in the Ford Focus (2009).
Click to expand...
Click to collapse
Does your Ford system have the Bluetooth audio choice?
I get my Ford Focus changed every six months coz i'm a driving instructor and it comes as part of the deal.
On my last Ford Focus my htc tytn 2 connected ok and I could make and receive calls ok.
However, when the new car was delivered the Ford system had bluetooth audio choice and ipod integration which the other one didn't.
Now my htc tytn 2 didn't connect very well at all.
Now with my HD2 it does connect only if I have the bluetooth audio profile selected.
But now the music player keeps appearing and wants to play music all the time. If I pause the music on the phone it just starts replaying.
Anyway I will try the registry tweak in this thread and hopefully that will solve the problem.
Paul.

Jolig said:
I tried this also, but for me it didn't work.
But my situation is a bit different, as I am not able to connect the HD2 through the Sim Access Profile with my car, which is an Audi A6 mit Bluetooth preparation and I have also the Audi rSAP Adaptor installed in the centre arm rest.
My problem is, that I get a connection to the car, but SAP does not activate and I can't get access to my phonebook - so I only have kind of a handsfree profile...
Am I right that you all use the handsfree profile in your cars and no SAP?
Click to expand...
Click to collapse
I have the same problem. I`ll try to pair my HD2 with MB C-klass using SAP but i can`t get them connected it seems like a SAP adaptor can`t activate a PIN input window on HD2 (i guess). With other phones it works perfect (tryed with Nokia 5800, 6500).

Shark_Abuser said:
I have a new Mercedes C, and when the HD2 is connected over bluetooth I get an extremely loud, strange ringtone when receiving a call. It is so loud it could really make your shoes go off.
Also it is none of the ringtones available to choose from, inside the phone - it sounds more like a BIOS beep from a PC and hits me while the normal ringtone is playing as well.
It definitely comes from the phone, not from the car stereo. I have not figured out how to resolve this, I think it is outright dangerous for unprepared drivers.
Click to expand...
Click to collapse
could you pls describe, how did get them paired? when i try to pair them, i see the device`s id, try to "call" it, see pin code and after that i hear the descending tone. and it nothing occurs. SAP is enabled, device is discoverable, what else? Any idea?

Jolig said:
I tried this also, but for me it didn't work.
But my situation is a bit different, as I am not able to connect the HD2 through the Sim Access Profile with my car, which is an Audi A6 mit Bluetooth preparation and I have also the Audi rSAP Adaptor installed in the centre arm rest.
My problem is, that I get a connection to the car, but SAP does not activate and I can't get access to my phonebook - so I only have kind of a handsfree profile...
Am I right that you all use the handsfree profile in your cars and no SAP?
Click to expand...
Click to collapse
I feel your pain, my wife has a GolfPlus and the rSAP instalation is crap.
It's overly expensive and useless if you don't have one of the few phones compatible with it.
Unfortunately, many customers are falling in this trap, thinking it is a standard handsfree, but it is not, it is a full GSM build-in which only access your phone SIM card to log into the network and download your contacts.
In the case of my wife, the dealer was honest and clearly stated that it was a mistake to order this option.
The only problem is that he had no other alternative than proposing an Parrot retrofit which wasn't really an option for me as it wasn't integrated in the car and certainly not in the navigation system.
But internet is your friend and the solution is quite simple, the Kufatec kit.
This is brilliant, it is a small box that connects to the CAN bus of many german cars and integrates perfectly into existing navigators, it uses the steering wheels command buttons and so on.
It is much better (more functions) than original BT options, is tailored to each brand so that the displays are in the same style as the original ones etc.
More interesting, it is field upgradable (just a laptop with BT) so that it is potentialy compatible with anything existing or not yet.
And it only costs a fraction of this crappy rSAP option.
In your case, the good news is that it can simply replace your actual rSAP kit for a minimal installation fee. (the CAN bus has to be reprogramed however, so professional instalation needed)
There is another solution: to replace the unit you have (it is situated under the driver's seat) by a skoda unit. This unit has the same connector but is simple handsfree instead of rSAP.
Hope this helps.

[Q] Bluetooth car connection

Problem : car :
Peugeot 407 (2008)
device : Nexus One (Rodrig. latest)
I always had troubles getting my device paired with my car, but mostly after a while or installing "bluetooth file transfer" it worked.
However not anymore. Does anybody has an idea what the problem could be? Are more people experiencing this. The devices see each other but they can't connect/pair to each other.
I also tried the app. "bluetooth fix" but it gives an error. Even after reinstalling the "Super User" app from the market.

(sorry I wanted to replace it to Q & A)

linking and transfer of phonebook is good, but quality is very bad. It is difficult to hear the other side, most of the time I have to take it from handfree and talk into the phone directly...
using cm 6.1 rc1

Had that too. Use a kernel without audio-mod.

It works but not really at the same time ..
I can receive calls but I didn't manage to get my phonebook on the car or make a call from the car, I have to dial through the phone.. Not sure actually if its possible or not with my car anyway...
Phone: Nexus One - CM6 nightly 263, with radio 5.12 and Wildmonks 112210 kernel
Car: VW GTI 2010 - RNS510

Does anyone also have a problem with using his bluetooth?
My phone sees my car's bluetooth but can't connect.
It always gets rejected!
It used to work on early Rom releases.
I am searching the net and this forum but I don't see any solutions.
There is an app on the market to fix bluetooth but it didn't work

Problem car: 2010 Audi S4
Phone: Nexus One (ATT) 2.2.2 (unrooted) Radio 5.08
Phone pairs. Cannot answer calls through the car controls. Must answer physically on phone in order to answer call. If picked up by car controls, the car says connected but no audio.
The system used to work perfectly before while on eclair 2.1. I think Froyo screwed something up for me.

huuub said:
Had that too. Use a kernel without audio-mod.
Click to expand...
Click to collapse
I'm also on CM with audoio issues. which kernel did you use, and is it affecting other areas of your phone pos/neg? i.e. do you recommend the switch?

The latest from wildmonks without Audio Boosts are :
http://wildmonks.whoisthedrizzle.com/kernel/2.6.35/010411/No_Audio_Boost_CM6/
These are good.
However I can't even connect anymore (had the no audio boost too when in the time it could connect)

foodplz said:
Problem car: 2010 Audi S4
Phone: Nexus One (ATT) 2.2.2 (unrooted) Radio 5.08
Phone pairs. Cannot answer calls through the car controls. Must answer physically on phone in order to answer call. If picked up by car controls, the car says connected but no audio.
The system used to work perfectly before while on eclair 2.1. I think Froyo screwed something up for me.
Click to expand...
Click to collapse
I also have an A4 with nexus one on CM 6.1 (still with audio boost) and it works perfectly (except for the sound quality). So might be a specific issue on your phone side, or maybe the new audi SW (mine is from 2008). have you looked at this thread?
http://forum.xda-developers.com/showpost.php?p=5805350&postcount=26

pwvandeursen said:
I also have an A4 with nexus one on CM 6.1 (still with audio boost) and it works perfectly (except for the sound quality). So might be a specific issue on your phone side, or maybe the new audi SW (mine is from 2008). have you looked at this thread?
http://forum.xda-developers.com/showpost.php?p=5805350&postcount=26
Click to expand...
Click to collapse
I also have audi but it's an 06 a4. I'm using enoms rom and everything works good

bluetooth car handsfree issue

I have a Bluetooth bug and not just a compatibility issue with my car radio and the N4's BT 3.0/4.0 firmware. I confirm it is not an issue with my car's headunit (Porsche CDR30 w/sound package plus) since the problem is the same with my Note on CM10 but the Note works fine when flashed using pre-CM10 ROM. My symptom is that all pairing completes and contacts export to car and import to car address book. Calls can only be made using phone though. Car does use speakers and mic supporting call but that's it. Handset must be used as dial pad and accept/end/hold/swap calls. I have two other older phones with pre JB OS and younger BT versions working with car no problems.
If you have any N4 BT/car issues, please post.

Hi there.
Parrot mki 9200 here and N4 working good here for contact sync, calls and A2DP. Having trouble with parrot 2.11 update, but that's non phone specific.
Sent from my Nexus 4 using Tapatalk 2

Fully loaded 2013 Soul and mine is fine.
Sent from my Nexus 4 using xda premium

lpasq said:
I have a Bluetooth bug and not just a compatibility issue with my car radio and the N4's BT 3.0/4.0 firmware. I confirm it is not an issue with my car's headunit (Porsche CDR30 w/sound package plus) since the problem is the same with my Note on CM10 but the Note works fine when flashed using pre-CM10 ROM. My symptom is that all pairing completes and contacts export to car and import to car address book. Calls can only be made using phone though. Car does use speakers and mic supporting call but that's it. Handset must be used as dial pad and accept/end/hold/swap calls. I have two other older phones with pre JB OS and younger BT versions working with car no problems.
If you have any N4 BT/car issues, please post.
Click to expand...
Click to collapse
I have an audio-dropping issue with my 06 BMW 330i, factory head unit.
I have a normal conversation for 5 minutes or so, then their audio goes away. They can hear me fine, but I cannot hear them.
I'm interested in a solution as my Nexus S worked perfectly before the Nexus 4.

surferdude73 said:
I have an audio-dropping issue with my 06 BMW 330i, factory head unit.
I have a normal conversation for 5 minutes or so, then their audio goes away. They can hear me fine, but I cannot hear them.
I'm interested in a solution as my Nexus S worked perfectly before the Nexus 4.
Click to expand...
Click to collapse
Interesting that my issue is associated with my Nexus 4. The bug is on JB stock 4.2, 4.2.1 stock, Modaco custom Jr1 and Jr2, as well as the CM nightlies I am now flashing and using on my phone. I am getting service Saturday and asking Porsche dealer service tech to update the CDR30 firmware to eliminate head unit as problem.

Strangely enough, my N4 BT worked fine for the last two conversations yesterday, 10 and 25 minutes, respectively, and worked fine for a 25 minute convo this morning. I'm definitely waiting on it to drop again. Post an update once your dealer updates the SW and you have a chance to test.

surferdude73 said:
Strangely enough, my N4 BT worked fine for the last two conversations yesterday, 10 and 25 minutes, respectively, and worked fine for a 25 minute convo this morning. I'm definitely waiting on it to drop again. Post an update once your dealer updates the SW and you have a chance to test.
Click to expand...
Click to collapse
Will do

My issue is likely related to my car's head unit Bluetooth radio firmware. Service tech unable to get his ICS Droid to fully interface with car's hands free functions. So it seems........

lpasq said:
My issue is likely related to my car's head unit Bluetooth radio firmware. Service tech unable to get his ICS Droid to fully interface with car's hands free functions. So it seems........
Click to expand...
Click to collapse
OK, the plot thickens I guess. BMW firmware is definitely sensitive to Bluetooth profiles also, but functionality seems to be there so I'll hope for the best in regards to call stability. Good luck and keep us updated.
Sent from my Nexus 4 using xda app-developers app

Problem: phone contacts to KIA handsfree system?

Hello,
OPT does connect properly to KIA audiosystem. Phonecalls & Spotify music for example transfers to the system OK.
But my phone contacts doesn´t. I suspect it´s something with PBPA!
With app Bluetooth Phonebook (trial) this problem dissapears,
is there any FREE app or anothr possibility to replace PBAP service or profile in my OPT with working one?

i can confirm that i have the same issue with volkswagen passat b8 - hope this will be fixed as soon as possible.
edit:
I tried Bluetooth Phonebook and yes it works - i decided to pay the money and use this solution as it is much safer to have it working right away not to wait it is going to be solved by OnePlus. And on other hand the cost of App was so tiny compared to the damage what could happen if acciden would happen during driving.

+1 import contacts fails
MK7 Golf
Sent from ONE A2005

On my Skoda Octavia mk3 it doesnt work either
Sent from my ONE A2003 using XDA Free mobile app

Same here Skoda 2014 Bolero System, I filed a ticket to OnePlus but a message told me it will take up to 10 Weeks till I get feedback.
For me the issue is worse as the Phone shows as connected but calls and audio are not working(only for 10 seconds)
BTW CustomRoms don't have this issue but are unstable and without LTE at the moment.
My current Rom were Bluetooth and Car Stereo Works --> http://forum.xda-developers.com/oneplus-2/development/rom-cm-12-1-temasek-mod-v1-t3200217
Good to hear that I'm not the only one with this issue, will most likely be fixed the question is when

Bluetooth issues

I have 3 main devices that I pair to my phone via bluetooth: watch/lg tone/car
The watch stays paired with no issues, but the watch is having issues swapping from the lg tones to the car and vice versa.
Anyone found a remedy for this?
As of now, I have to go into the bluetooth settings of the one I don't want to use and deselect media/phone, then go to the other and select media/phone. And even sometimes this takes multiple times to work.
My previous phone (gs7) had no issues swapping from the two.

Hi,
Did you get a solution ? I face the same problem and can't find any solution...

Just to clarify, when you are in your car and want to connect to it, the headphones are turned off, correct?

Having similar issues... Every time I try to connect to my car (stock Subaru WRX), I have to manually connect and it takes several attempts before it connects. Once it connects it usually doesn't drop though. Very frustrating...
Another poster resorted to getting a whole new head unit: https://forum.xda-developers.com/oneplus-5/help/sony-xav-ax100-bluetooth-issues-t3634940

ArkAngel06 said:
Just to clarify, when you are in your car and want to connect to it, the headphones are turned off, correct?
Click to expand...
Click to collapse
It's not in my car but with the bluetooth device of my motorcycle helmet. The reference is ncom bluetooth kit 3. I have to connect it manually and it takes several attempts before it connects. Sometimes it doesn't connect at all....

I have 2 headset Plantronics Backbeat Pro and Plantronics Backbeat Fit. They both work flawlessly
My Huawei Watch also works.
But my Nokia 616 Car kit wont connect at all.
And my motorcycle hemlet bluetooth kit, Cardo scala rider PACKTALK, connects, but the audio is slowed down to about 80 percent?

Same thing here.
I have been facing problems with a Sony SBH52 Headset and with my Opel Corsa E, stock infotainment system.
It gives me a hard time connecting but when it does it's stable.
I had the same with my gen 1 Moto 360 but after a factory reset to the watch and a reboot it's stable.
Sent from my ONEPLUS A5000 using Tapatalk

yubimusubi said:
Having similar issues... Every time I try to connect to my car (stock Subaru WRX), I have to manually connect and it takes several attempts before it connects. Once it connects it usually doesn't drop though. Very frustrating...
Another poster resorted to getting a whole new head unit: https://forum.xda-developers.com/oneplus-5/help/sony-xav-ax100-bluetooth-issues-t3634940
Click to expand...
Click to collapse
I had the same issue with my TSX. I did some research and cleared the cache. Worked like a charm afterwards. Did not have the issue one week since doing that

suizdude said:
I had the same issue with my TSX. I did some research and cleared the cache. Worked like a charm afterwards. Did not have the issue one week since doing that
Click to expand...
Click to collapse
Ahem, I seem to be unable to find bluetooth in my app settings. Can you please give me a hint?
It's been driving me crazy these days with my SBH-52 and I want to try this too.
Thanks!
P.S.
I'll also give it a shot with a plantronics pro headset I have to see if it does the same.

Bluetooth profiles implementations, even though they passed certification, are not always made equal! So don't end up pulling your hair if a certain BT device doesn't play nice with another.
Just as an example... Head Unit X had big issues with the initial contacts sync, right after pairing with Samsung phones (already known to sometimes play around some other standards). It would only work after several reconnects. After several weeks of debugging (poor development guys) and reproduction test (poor testing guys) it was concluded that it is a phone issue caused by some wrong timing delays in the process of exchanging information between the HU and the phone. Samsung was informed and the ticket was internally closed.

I have similar problem with Bluetooth Earbuds. Phone simple doesn't "see" the Earbuds. But strange - it can see other Bluetooth devices and other devices can see Earbuds.
I'm sure this is a OnePlus 5 software problem.
Version OxygenOS 4.5.10

i have somhow issue as urs, i have Bluetooth pad lock and android watch, it sometimes connected and sometimes not, i do believe its software issue, im on 4.5.11

Yes, it is strange. After some restarts and on/offs connection suddenly appears