Develop Bugs

Bluetooth car-kit: hands-free and stereo audio

I have been using the Touch Pro 2 for a little while now, and I must say: no regret at all that I've bought it.
But the reason I post here is because I'm having a problem with my car-kit and the Touch Pro 2 when they are connected through bluetooth.
First of all, some data about the car-kit
Car stereo: JVC KD-BT22
Bluetooth functions: handsfree calling and Bluetooth Audio Streaming
Bluetooth version: 1.2 certified
Profile: HFP 1.5, OPP 1.1, A2DP 1.2, AVRCP 1.3
The situation:
When I pair the devices I can check two options:
1) Handsfree
2) Stereo Audio
This should be fine, but the problem comes next:
- When I both check handsfree and stereo audio, I don't get any streaming audio (I just hear about one second the song which is playing at the phone), if I call or get called nothing hapenned except the display of the phone showing the caller. The car-kit just keeps playing (for example) the CD.
- When I uncheck the stereo audio, just connecting the handsfree everything works "fine" (some small problems, not mentionable).
- When I only connect stereo audio the same happens as described before: the song which is playing at the phone I hear about one second, and after that it's silenced (the song is still "going forward", but no sound, nor on the phone, nor on the car stereo).
I've tried different set-ups, searched the forums and didn't saw anyone with this problem/no sollution, so I hope someone could help me.
This happened with the Stock Rom and also the custom rom I'm using right now, no difference. When I connect a stereo headphone (from Nokia) through Bluetooh, everything works fine.

don't pair from the phone use your Radio to pair...i had the same problem with my Pioneer at first so i searched for the device from my stereo and it worked just fine and ...i hope this helps... and make sure your discovery is always on...take care!

Well, that in a case makes sense...
The carkit also connected to my phone when discovery was turn off. Seemed strange to me already. A little, maybe stupid, question: what do I need to swith off/turn off on the phone so the phone won't connect to the carkit, but that I have to let the carkit connect to the phone?

HTC aware
I have similar problems with the BT stack in the TP2, which is disappointing having migrated from a Snap. I e-mailed HTC who admit they are aware of BT problems with the TP2 and advised me to keep an eye on the support page for a fix.

apv245l said:
I have similar problems with the BT stack in the TP2, which is disappointing having migrated from a Snap. I e-mailed HTC who admit they are aware of BT problems with the TP2 and advised me to keep an eye on the support page for a fix.
Click to expand...
Click to collapse
I also tried mailing HTC about this problem. The reply wasn't so hopegiving
"We're sorry, but the carkit isn't compatible. Please fill out the form for our technical support team"... Summary: I've not been too lucky with this combination
Hope they might do something about it after all. Me just thinking that Bluetooth = Bluetooth, but it's more complicated than that.

I also have the same problem with JVC-KD-AVX2 streaming audio. couple of times i did manage to get it to work, but once the stereo is turned off and on, i lose the streaming again.
i called HTC and emailed them. one said my stereo is not compatible, but i did have it working kind of.
not sure what the problem is as the touch pro1 worked fine. also my friends N97 worked fine

did all of you use your stereo to search for your phone or your phone to search for your stereo... if u used your phone then try using the stereo to to look for your phone under the connections menu and it should work

nemo0405 said:
did all of you use your stereo to search for your phone or your phone to search for your stereo... if u used your phone then try using the stereo to to look for your phone under the connections menu and it should work
Click to expand...
Click to collapse
Sorry for my late reply.
I can't connect/pair the phone using the stereo, to bad.

Well, I have the Pioneer Stereo and what I discovered was you have to do it from the stereo. For some unknown reason it errors out from phone. Since that, I have no problems, further more it reads my text as well as incoming e-mails. Hope that help

DownNeverOut said:
Well, I have the Pioneer Stereo and what I discovered was you have to do it from the stereo. For some unknown reason it errors out from phone. Since that, I have no problems, further more it reads my text as well as incoming e-mails. Hope that help
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Click to collapse
Which Pioneer are you using? I'm using the F700, and for some reason it won't mute the radio when in a call. I haven't gotten time to mess around with it much though. Reading incoming texts would be great.

i bought a car kit MP3 player for my car. I paired it with my TP2 and enabled the "BT Audio" and "BT Handsfree". Outgoing calls work fine with no problems at all. But during incoming calls there is a problem. If the incoming call is from someone saved in my contacts, the BT carkit does not ring. If its from an unknown number (not saved in my contacts), it works perfectly. I tried all the tweaks and hacks in this forum but nothing worked. Anymore ideas.

nemo0405 said:
don't pair from the phone use your Radio to pair...i had the same problem with my Pioneer at first so i searched for the device from my stereo and it worked just fine and ...i hope this helps... and make sure your discovery is always on...take care!
Click to expand...
Click to collapse
x2, exact same problem with MY pioneer on 6.1 ... took me an hour to figure out how to pair it correctly, and it happened completely by accident out of frustration while I was pounding my fists into the horn haha. Now I know better...
set your phone to discoverable, then pair from the radio, confirm on the phone. good luck - Mark

qaliza said:
i bought a car kit MP3 player for my car. I paired it with my TP2 and enabled the "BT Audio" and "BT Handsfree". Outgoing calls work fine with no problems at all. But during incoming calls there is a problem. If the incoming call is from someone saved in my contacts, the BT carkit does not ring. If its from an unknown number (not saved in my contacts), it works perfectly. I tried all the tweaks and hacks in this forum but nothing worked. Anymore ideas.
Click to expand...
Click to collapse
The only thing I can think of is that maybe you have different ringtones set up for contacts and unknown contacts. Or your carkit is broken.
Hope this helps - Mark

qaliza said:
i bought a car kit MP3 player for my car. I paired it with my TP2 and enabled the "BT Audio" and "BT Handsfree". Outgoing calls work fine with no problems at all. But during incoming calls there is a problem. If the incoming call is from someone saved in my contacts, the BT carkit does not ring. If its from an unknown number (not saved in my contacts), it works perfectly. I tried all the tweaks and hacks in this forum but nothing worked. Anymore ideas.
Click to expand...
Click to collapse
RADRaze2KX said:
x2, exact same problem with MY pioneer on 6.1 ... took me an hour to figure out how to pair it correctly, and it happened completely by accident out of frustration while I was pounding my fists into the horn haha. Now I know better...
set your phone to discoverable, then pair from the radio, confirm on the phone. good luck - Mark
Click to expand...
Click to collapse
Try the cab from this thread ------> Fix for playing ringtones over bluetooth headset.
It's meant so that the actual ringtone you have set will play on the car kit. I know my car kit used to have its own ring which was... boring to say the least. Now the various ring tones set to people on my phone play through the car kit. Anyway... This MIGHT fix the issue you guys are having as well.

RADRaze2KX said:
The only thing I can think of is that maybe you have different ringtones set up for contacts and unknown contacts. Or your carkit is broken.
Hope this helps - Mark
Click to expand...
Click to collapse
Yes i do have diifferent ringtones for contacts and also different pictures. The problem is in the contacts name. When i remove the name and leave it unnamed it works fine.
Thanks for your reply..

Aaron McCarthy said:
Try the cab from this thread ------> Fix for playing ringtones over bluetooth headset.
It's meant so that the actual ringtone you have set will play on the car kit. I know my car kit used to have its own ring which was... boring to say the least. Now the various ring tones set to people on my phone play through the car kit. Anyway... This MIGHT fix the issue you guys are having as well.
Click to expand...
Click to collapse
it did not fix my problem but thanks anyway. The problem im facing is that any contact saved with a name wont be recieved on the car kit. while if its left unnamed it will work fine.

Problem with Windows Mobile and Bluetooth Headset Playing Audio

Hello guys,
I just got a Sony bluetooth headset and I am trying to use it with my HTC TYTN II. At first I paired the phone and the headset and I was able to listen to music and talk through the headset, all perfect. When I was listening to music, the bluetooth icon on my phone represented a music note and a headset over it.
When I turn the headset off once and then on again, it connects automatically with the phone but in some other mode. The bluetooth icon now represents the bluetooth sign with a headset over it. Now when I listen to some music, it comes from the speaker of the phone, not from the bluetooth headset. Talking through it is not a problem.
If I pair the phone and the headset again, it works just fine (showing again the music note) but once I turn the headset off and on again, I lose the music mode.
Does anyone know how to fix that? Thanks in advance.

I fixed the issue by installing AutoA2DP (found in this forum).

I've had a similar problem on my Tilt. I originally posted the following on the ROM thread. Since then, I have found that the AutoA2DP has not fixed the problem. I still have this issue about 70% of the time, and sometimes I can't get the bluetooth to work at all, not even after a soft reset. Sometimes it seems as if the bluetooth has no power, the phone can't communicate with the headset except when within a few inches of one another. Then it magically seems to resolve itself. Anyway here's my original post from the ROM thread.
The other day I installed an app on my phone called Schaps Network Plugin, which allows you to map network drives to the phone the same way you can do with a desktop. It allows me to access the home network directly via my wifi. It was something I needed and it seemed to work great, for a day. The next day my bluetooth headset would not connect. Long story only slightly shorter, it seems the problem was with the headset connecting via A2DP and doing so automatically. This always worked just fine in the past. Suddenly it wouldn't work. I tried a ton of things including a "fresh" install of everything and formatting my memory card to start with nothing on it. I flashed the original rom and then flashed this rom. I did hard resets each time. Did this twice. Even tried the bluetooth in the oem rom to see if I still got the problem. I did, and it is still with me. I can manually get the headset to connect via A2DP using the bluetooth settings, though even then it may take reconnecting several times to get it to work. However, when I turn the headset off and then on again, the A2DP does not reconnect, just the hands free. But the sound is not routed through the phone's speaker either, at that point. In fact you often get no sound at all, nothing via the headset or the speaker. OTOH, if you activate Voice Command, the headset does work while Voice command is running. After it shuts off, you are back to no sound. It seems as if the hands free works fine, but the audio gets partly routed to A2DP but does not connect to the headset. If I reset the phone, the headset connects correctly and efverything works until I turn the headset off again. Also if I pair the headset again, everything works correctly until I turn the headset off. Though pairing is not as trouble free as it used to be either. Sometimes it will not pair up wihtout repeated attempts. I did find this program, AutoA2DP which has patched the problem. It detects when a paired bluetooth device connects, and forces a connection via A2DP as well. But I never had this issue in the past, and my wife's phone still has no problem. I am not sure the Schaps Network plugin had anything to do with it, other than the timing. Seems odd to me that the bluetooth stack would suddenly develop issues that persist even after two fresh flashes of the rom. Any ideas, suggesitons, etc.? This is really bugging me, and although the patch seems to be working, the phone is still not acting "right." In the past, and on my wife's phone, if a bluetooth headset is turned on, it automatically connects, and all sounds, including the system sounds, are routed through the headset. Now, sometimes they are, and sometimes they aren't.

no sound after bluetooth unpairing

Hi, I have been searching and can't seem to find anything on this. My wife's and my epics pair, and work, great with with our car stereos (clarion). but, when we get out of the car, and the phone unpairs, we have no more system sounds. we miss calls and texts because we never hear them. the sounds now only come out the ear piece. Only a reset corrects it and then we hear sounds from specker again. Of coarse until we get in the car, and it all starts over again.
any ideas? I'm stumped.
thanks!

have you tried turning bluetooth off entirely when u leave the car?
also are you using any applications to send media with bluetooth such as BTmono?

I have the same problem -- as does my wife. I'm using a Motorola BT in the car, but it seems to be a problem with any BT connection as she primarily connects to our BT phone connection in the house. I saw this problem mentioned in a couple other threads, but no real solutions other than things like turning off BT on the phone before disconnecting, etc. Frankly, that's a hassle and I never remember to do it. I was hoping the latest version of Syndicate ROM might fix it, but just had it happen again this morning. So, I can confirm it's a problem on both Froyo stock and Syndicate ROMS. At least it seems like rebooting is a bit faster on Syndicate, so that's my solution for now as soon as I realize sounds aren't coming through. Just gotta remember to check before I miss a call!
Sent using Tapatalk.

thanks for the replies. I am not using anything that starts to stream to the car stereo. Music player use to, but I removed it. I did notice today that the specker sound loss only happens if i make/receive a call. Today I drove to store and while in store away from car sound was fine. got back to car, called wife, and then when I was at home sound was gone. I will try to toggle off BT before phone is unpaired. what a pain.

Wouldn't ya know I found a thread about this after I post this.
http://forum.xda-developers.com/showthread.php?t=1029198

This post has worked for me: thanks mattallica76. I had to be in car paired to do this.
http://forum.xda-developers.com/showpost.php?p=13102385&postcount=31
This problem is a bug that exists while using Bluetooth on a device for both ad2p and phone calls. The only workaround (until Sammy or one of our great devs comes up with a fix) is to use the BT device for one or the other. This will prevent the audio from being routed to the phones earpiece after BT disconnects. To do this, go into the phones BT settings. Then long press the device that you are having trouble with. Next uncheck "Media Audio" or "Phone Audio", depending on which purpose you want for the device.

[Q] Bluetooth not working on Galaxy Nexus

Bluetooth appears to be broken on my Galaxy Nexus I can discover other bluetooth devices fine, and they can discover the Nexus, and pairing appears to be successful from either direction. But as soon as I try to connect/transfer a file immediately I get a notification on the Nexus saying 'connection unsuccessful', 'transfer cancelled by user' (when I didn't cancel anything!) etc.
I've tried this with three different devices (my old HTC Desire, my wife's HTC Legend and my MacBook Pro) with the same results on all three.
Has anyone else run into similar problems, or does this sound like I've got a faulty unit and should send it back? Is there anything I can do to troubleshoot this any further? (I've not rooted the phone and its running the stock Android 4 ROM).

I wish I had an answer; just got my Galaxy Nexus yesterday; it won't pair with any of my bluetooth(s) -- they were all working fine in my Droid so I know how to pair. Any suggestions? Help!! Thanks

After further investigation, it seems it's just outgoing connections that don't work on mine. I can transfer files from other devices to the GN fine, just can't transfer from the GN to any other devices. Haven't tried connecting to a headset or anything like that as I don't have one.
I asked an acquaintance who also owns a GN to test it out on theirs and they experienced exactly the same thing - everything works ok except for outgoing connections/transfers.
I'm wondering if its a software bug if that's the case. If it were hardware related you'd have thought the whole bluetooth thing would be broken.

FWIW: I have been able to pair and connect via bluetooth with my car, with no problem. Downloaded my phonebook to my car via bluetooth as well.

Bt phonebook pairing
I'm having BT issues as well with my G-Nex on Verizon. Will connect/pair with my car, works for making/receiving phone call audio, but will not synch the contact list. Thus, cannot use voice dial in my car (Nissan).
Have searched all over the internet, no real answers. Tried to disable the existing bluetooth PBAPservice as suggested somewhere else - no dice, and it just restarts itself anyway. I've seen some suggestion about rooting the phone and replacing the PBAPservice which may be my next step. Hate to root a phone this new when I may end up returning it if I can't make this work ... sorta a deal breaker for me.
Anyone have any suggestions? Could my phone just be defective? Seems like there are a number of BT issues around, but I can't find anything "official" acknowledging the issue(s) ..
Thanks ...

I'm having a problem with my new GNex bluetooth as well. I'm using a Blackberry Stereo Gateway (an A2DP adapter) in my car and it -does- work, but only after I toggle bluetooth off and back on again. That's kinda annoying.
Previously I had been using an Incredible and it was working fine.

Having problems with Bluetooth as well. I have a BlueFusion unit installed in my car. Worked perfectly fine with my Droid X. Every time I got in the car, it just connected and calls and music both played over the stereo fine. Got my Galaxy Nexus paired and it worked great. However, whenever I get back in the car and the Galaxy Nexus reconnects, the audio does not work. It says it's connected, it plays with no audio coming out of the phone or the car speakers though. Tried re-pairing, no go. Tried bluetooth on/off, no go. The only way to get it to work, is to reboot the phone every time I get in the car.

DoubleVision81 said:
...Tried bluetooth on/off, no go. The only way to get it to work, is to reboot the phone every time I get in the car.
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Click to collapse
Okay, I don't feel so bad now. Ouch.
---------- Post added at 02:07 AM ---------- Previous post was at 02:04 AM ----------
cam30era said:
FWIW: I have been able to pair and connect via bluetooth with my car, with no problem. Downloaded my phonebook to my car via bluetooth as well.
Click to expand...
Click to collapse
Does A2DP work properly? And what sort of bluetooth device are you pairing with?

Same here, sending files works, receiving doesn't. Pairing with my bt headset also works fine....
Sent from my Galaxy Nexus using XDA App

mattots said:
Bluetooth appears to be broken on my Galaxy Nexus I can discover other bluetooth devices fine, and they can discover the Nexus, and pairing appears to be successful from either direction. But as soon as I try to connect/transfer a file immediately I get a notification on the Nexus saying 'connection unsuccessful', 'transfer cancelled by user' (when I didn't cancel anything!) etc.
I've tried this with three different devices (my old HTC Desire, my wife's HTC Legend and my MacBook Pro) with the same results on all three.
Has anyone else run into similar problems, or does this sound like I've got a faulty unit and should send it back? Is there anything I can do to troubleshoot this any further? (I've not rooted the phone and its running the stock Android 4 ROM).
Click to expand...
Click to collapse
I had this problem when I fist boot the Nexus and after the first boot of the update to 4.0.1. Reboot the phone, re-pairing the devices and everything is fine since then.
Sent from my GT-P7300

I can't even get my Nexus to pair with my car (Kufatec FISCON unit for Volkswagen). Just straight up error "unable to pair" when I try it. :/

And I have a problem as well. I did get it to pair with my PC but I can't send any files from my PC to Nexus (it works fine with Desire).

I have two Nexus (one is my wife's) and both car have Blackberry Bluetooth Gateways in them. In both cases I am seeing the same issue as the OP, the bluetooth will not connect automatically. However if I manually power on the bluetooth on the phone when the gateway is in connecting mode than they will connect. I never had a problem like this with previous phones.
Is there a official way to inform Samsung of this issue?

I'm also having problems with bluetooth on my Galaxy Nexus. I wanted to transfer files via bluetooth from my old Incredible 2 to my new Galaxy Nexus and it just wouldn't work.
Edit: A reboot appears to have fixed the problem.

DoubleVision81 said:
However, whenever I get back in the car and the Galaxy Nexus reconnects, the audio does not work. It says it's connected, it plays with no audio coming out of the phone or the car speakers though. Tried re-pairing, no go. Tried bluetooth on/off, no go. The only way to get it to work, is to reboot the phone every time I get in the car.
Click to expand...
Click to collapse
I have this same issue exactly - and had this issue after a System Update on my Droid Incredible for a few weeks before I ended up buying the Galaxy Nexus. I had hoped the new phone wouldn't have this issue. Anyways, it also seems to happen when I take a phone call.
Scenario: I'm listening to music over bluetooth to my bluetooth audio enabled headunit in my car. I receive a phone call, and toggle the bluetooth off so I can take the call privately over my phone's earpiece. When the call is finished, I toggle the bluetooth back on and the phone will connect - however the music is playing, but no audio comes through the phone nor the speakers of my car.
I started having this -exact- scenario issue when System Updates started rolling out for Droid Incredible, and they added the options for "Phone Audio" and "Media Audio" under the bluetooth options. Before these System Updates, my Droid Incredible had worked perfectly with bluetooth audio in my car.

Bluetooth Phone and Stereo
SnarfvsMaximvs said:
I'm having a problem with my new GNex bluetooth as well. I'm using a Blackberry Stereo Gateway (an A2DP adapter) in my car and it -does- work, but only after I toggle bluetooth off and back on again. That's kinda annoying.
Previously I had been using an Incredible and it was working fine.
Click to expand...
Click to collapse
I am having similar problems with both my car's BT phone and BT audio.The phone through my car gets terrible static until I stop and start Bluetooth again, which is dangerous on the highway.
I hope it can be fixed with a little software update.

I have the same problem with new nexus galaxy, pairs well with car bluetooth audio, can hear a confirmation beep on car speakers but no luck in the phone. It just stays on paired but not connected. It doesnt allow to remove pairing and redo it untill rebooting the device.

I'm also having issues with the bluetooth audio in my car. I pair okay with my Sony Xplod head unit, then when I turn off the car and reconnect, the GN starts playing music through the internal speaker instead of the car speakers.

I'm having the previously mentioned A2DP issue as well. Everything connects fine but occasionally, no audio is heard via the deck in my car. Phone calls via bluetooth work, just no A2DP audio.
For those having this same problem, you can fix issue by toggling airplane mode on and off. This is quicker than rebooting (which also fixes the issue).
This has to be a bug. I'm running 4.01. Anyone having the same issue with 4.02/4.03?

AdamUpNorth said:
I'm having the previously mentioned A2DP issue as well. Everything connects fine but occasionally, no audio is heard via the deck in my car. Phone calls via bluetooth work, just no A2DP audio.
For those having this same problem, you can fix issue by toggling airplane mode on and off. This is quicker than rebooting (which also fixes the issue).
This has to be a bug. I'm running 4.01. Anyone having the same issue with 4.02/4.03?
Click to expand...
Click to collapse
Yes. I just got mine last night...ran some errands today. Paired fine in my car, can make and receive calls through the car's audio system, but no sound. I'm running 4.02. Tried this with my BT headphones and the same thing happens.
The airplane mode trick works, however. Thanks!
Hopefully this will get fixed rather quickly!

Bluetooth issues - Please help!

I love this phone so far, but one issue has me wanting to send it back to tmobile. My car comes with a Bluetooth stereo, and I have it paired with my m8. The problem is with the phone's OS and Bluetooth prioritization.
When I place a call, a window pops-up and asks what audio method I want to use. It is unnecessary, but I could live with that.
When a call comes in, it always defaults to the phone's internal speaker. I have to take it out of my pocket and manually select Bluetooth audio. Sometimes it doesn't even switch over after it is selected.
Is there a way to make it always default to Bluetooth audio when connected? It is driving me crazy!

midnightslide said:
I love this phone so far, but one issue has me wanting to send it back to tmobile. My car comes with a Bluetooth stereo, and I have it paired with my m8. The problem is with the phone's OS and Bluetooth prioritization.
When I place a call, a window pops-up and asks what audio method I want to use. It is unnecessary, but I could live with that.
When a call comes in, it always defaults to the phone's internal speaker. I have to take it out of my pocket and manually select Bluetooth audio. Sometimes it doesn't even switch over after it is selected.
Is there a way to make it always default to Bluetooth audio when connected? It is driving me crazy!
Click to expand...
Click to collapse
When I answer with my car's Talk button it is always output through Bluetooth.

rquinn19 said:
When I answer with my car's Talk button it is always output through Bluetooth.
Click to expand...
Click to collapse
same here...
maybe your car's bt stereo is not the best? or not compatible?
I have a kenwood dnx-7280bt and it works fine