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Bluetooth turns off randomly

Hi,
I am using my HTC Touch Pro with an Opel Vectra built-in bluetooth carkit.
All functions, like browsing the address book and call registers, are working fine. However, at random times, my carkit reports no phone. When I then check my Touch Pro's bluetooth status, I see that it is has been disabled.
After manually re-enabling it, I can pair with my carkit for as long as it takes for bluetooth to turn itselves off again.
I've already tested with JETware, but that does not change anything. Also tried the universal broadcom bluetooth stack, but doesn't seem to work on the Touch Pro. HTC only comes with a standard answer that they don't support all carkits and headsets... Since the BT stack on the phone seems to crash, I don't think it's a carkit issue.
Anyone here with the same issue? And maybe a solution?
Thanks and regards!!

Start -> Settings -> Connections -> Bluetooth -> Timeout (tab). Turn off Visible mode set to "Never".
I think this must be your problem.

Hi Freco,
Thanks for your reply! This option is set. However it's not really the visibility that turns to invisible, but the whole bluetooth stack is being turned off completely. Need to fully re-enable it via Comm Manager.
Any other options? Does anyone know if there is a working broadcomm stack for the Touch Pro?
Regards!

Hi,
I have exactly the same problem with a Vauxhall kit, I have tried all sorts of things, but nothing seems to work

try:
start -> settings -> connections -> bluetooth
timeout tab
select 'never' from drop down box

Hi Brendo,
Unfortunately this doesn't solve the issue. Once paired, the connection even works without being visible. It's also not a fixed period of time before the disconnect takes place (can be within a minute, sometimes after half an hour). However, the whole bluetooth icons disappears from the top icon bar and comm manager shows it's turned off completely.
Hope somebody has any other ideas, because the only thing HTC can do is point to the carkit vendor :-(. Since all functionality is there when connected and the phone is turning off BT in some way, I really don't think this is caused by the carkit vendor. I should at least expect BT to stay enabled on the phone.
Thanks!

Yes, same here, BTW I have tried this in my Friends Saab, and the same problem.

same problem here with a Opel DVD90 buildin bluetooth carkit.
With other htc phones it always worked like a charm, but my mda vario IV continuously disconnects after a random time period and shuts down the complete stack.

Try this!
I have the same problem with my opel with original bluetooth-kit (2007). On the touch pro I changed the band and network from auto to GSM, as G3 reseption in this area is quit poor, especialy while driving. It helped for me, at least the last few days. I agree this has been an annoying problem.

I have tried to switch to "GSM only mode" in the past, but as far as I remember it does not completely solve the issue. However, I will give it another shot! Actually I can't figure out at what point it occurs... It can happen within a minute or after half an hour without using any funtion.
Does one of you know if there is a way to do some debugging on the Bluetooth stack?
And has anyone experience with other Windows Mobile 6.1 based phones in this combination (just curious if it's a WM issue or HTC only)?
Furthermore I did some tests with JetWare. You should be able to limit the number of synchronised items then (might be related to this issue). However, it looks like this configured limit is being totally ignored: when I limit my recent call list to 5 with JetWare, it still syncs about 25 items. Anyone tested with Jetware?

I have tried the GSM only mode, this didn't help either
I have now given up and got myself a Nokia E66, which works perfectly.
All contacts are pushed to car, no disconnects and AD2P works so my mp3 ringtones play through the car speakers! Sweet
Word of note, I had issues with N-Series phones, would connect ok, but contacts would not push.

I have the samen problem with my HTC Touch Pro and Saab.

bluetooth pairs just fine with my pioneer bluetooth enabled deck, but the problem iwth mine is once i receive a call sometimes no sound comes from the car, instead the earpiece is still on. but if i initiate the call first sound works just fine and earpiece on the phone is disabled, BUT once the call is ended bluetooth disconnects randomly and the phone takes a good 1-2min to reconnect. i absolutely hate the bluetooth on this phone!

ExTREmE99 said:
bluetooth pairs just fine with my pioneer bluetooth enabled deck, but the problem iwth mine is once i receive a call sometimes no sound comes from the car, instead the earpiece is still on. but if i initiate the call first sound works just fine and earpiece on the phone is disabled, BUT once the call is ended bluetooth disconnects randomly and the phone takes a good 1-2min to reconnect. i absolutely hate the bluetooth on this phone!
Click to expand...
Click to collapse
I am having the same problems you describe. Anyone got an suggestions???

I encountered the same problem; first with an opel udp carkit and next with the bluetooth interface software from homeseer.
It has something to do with phone signal loss.
With the opel carkit I noticed bluetooth automatically turns off when the phonesignal switched from 3g to gsm.
I also noticed that in my home, BT turns off whenever I have been in a room with no phone-signal reception.

try this thread, both registry change and attached cab file, reset. DOn't worry if the make visible to all option is unchecked.
http://forum.xda-developers.com/archive/index.php/t-314996.html

[Q] Problem about AVRCP in N1

My phone is HD2 and installed the rom New Nexus One Android 2.2 Build FRG33 [ mccm v1.5](8.9.2010)
I found that i just couldn't use the buttoms on my bluetooth headset when im enjoying music.
what should i do with this problem?
thx for ur help!

I get this problem occasionally when I link my N1 w/ my car stereo. The controls don't work etc and it's not in audio streaming mode (ie. it's probably only using the Phone bluetooth profile and not the stereo audio profile as well). What I usually do is go into bluetooth settings, long click the device, and uncheck the bluetooth profiles. Then I recheck those profiles and reconnect the device. This usually fixes it. Of course, your problem could also be related to this HD2/Android hackery...

Navigon Mobile Navigator leaves phone speaker enabled when connecting to bluetooth.

Android Froyo, HTC Desire HD with Navigon Mobile Navigator.
I can connect the phone to my car stereo through Bluetooth. Everything works fine. I can receive and make calls and music routed through to Bluetooth perfectly. When I use Mobile Navigator the turn-by-turn instructions come through the phone speaker, then a second later they also come through the bluetooth connection to the car. The beginning of the bluetooth instruction is also cut off. I can't find anywhere to explicitly disable the phone speaker when audio is routed to Bluetooth, although other apps don't seem to suffer from this. Anyone know a hack?

Same Problem here. sound is routed through bluetooth and phone speaker while bluetooth is cut off. I assume the Navigon software has a bug here. I hope they fix it soon
unfortunately I did not find any workarround or fix till now
anyone?

I had a workaround using car UI by beemer. Unfortunately after upgrading to android 2.2.1 I can't make it work anymore but am not sure where the problem lies as even downgrading again through backup-restore left the same problem. I'd be interested to hear if anyone has a magic trick for producing the right combination of settings as I know this was working before with a 2.2.0 based rom and car UI.

[Q] Nexus S bluetooth problems

Hey guys
Strange issue here. I paired my phone with my car through Bluetooth to make and receive calls using the car audio system. It works well.
However, if I fire Google Navigation, I can't here the spoken instructions through either the phone speaker or the car speakers.
I was not expecting navigation audio to be routed through Bluetooth audio, but I did expect the navigation instructions to come out of the phone speaker, as it does on the nexus one or the vibrant both running Android 2.2.
Is anybody else having this issue?
Thanks
Sent from my Nexus S using XDA App

bluetooth wont turn on
It just flashes the icon and does not turn on. From in settings same. Any ideas?

vapor311 said:
It just flashes the icon and does not turn on. From in settings same. Any ideas?
Click to expand...
Click to collapse
did you flash a new kernel or anything because the kernel in the dev thread is known to break bluetooth
if it does this stock out of the box try doing a system restore and then take it back if its still acting up because bluetooth should turn on

yea i used the pkg one that had SU etc on it. Suppose Ill have to flash back to stock arg.

just so peeps know with the bt issue flashing this fixed
http://forum.xda-developers.com/showthread.php?t=882333

Anyone?
Sent from my Nexus S using XDA App

Locking up slash rebooting while streaming bluetooth audio
Anyone else experiencing any sort of lockups rebooting streaming bluetooth audio. It seems like I can only get about 10 to 15 minutes streaming audio before the phone becomes completely unresponsive won't power on or anything
Sent from my Nexus S using XDA App

You should be thankful...I can't get more then 10 sec without it being cut off and play again...for...10 sec

what rom?
I had same issue once...i on CM7

Bluetooth doesn't stream audio to car - what's your experience
I've got a Ford Edge with the new Ford MyTouch/Sync system.
The Nexus S connects to the Bluetooth just fine; makes and receives calls perfectly. It will also connect to the Bluetooth Audio Stream for music playback, but won't play the audio over the car's speakers. Also, sometimes it connects, holds the connection for just a few seconds and then disconnects. My SGS and Nexus One work as expected, as does the iPhone, so it doesn't appear to be an issue with the car.
Seems like a bug in the NS to me.
I'm curious if others are streaming audio/music to their auto's BT system without issues?
It would be especially nice to know what anyone else with a new Ford/Lincoln is experiencing, but I'd also like to compile a list of what cars work and what don't.
I'm going to have to find some other BT device that I can test the stream on to see if my phone works with it or not. Maybe my Nexus One dock? I've never used that to stream audio even with the Nexus One.
In terms of troubleshooting my problem, I've already rebooted the phone and the car, un-paired and re-paired the phone with the car.

I've got a Mazda RX8 R3 and the NS will pair with the in-built car BT but drops the connection after a few minutes. It then refuses to connect again unless I re-pair, then a few minutes later it drops and we're back to square one.
The car's in-built BT worked fine with my HTC Desire, Hero, iPhone 3G and Blackberry 9700 so I'm guessing the Nexus S has a Bluetooth issue.

Mine works fine on my aftermarket Sony receiver.

having issues with bluetooth audio too, stream keeps breaking every now and then. Any fixes?

I've only streamed to the car stereo and had no issues. The phone is only about 10cms away.
Haven't tried my BT headphones yet, maybe range is the issue.
*On original ROM.

Mujja said:
I've only streamed to the car stereo and had no issues. The phone is only about 10cms away.
Haven't tried my BT headphones yet, maybe range is the issue.
*On original ROM.
Click to expand...
Click to collapse
tried placing the phone right next the the BT reciever and same problem. Only tried this once, maybe I'll try rebooting the phone.

no problem here
using Bionix 1.2

You're lucky, I can't even get BT music streaming to work with my car. No other BT devices to check with besides my Nexus One dock, which has no speakers.
BT works great for the phone, though, to make and receive calls.

Problem with Bluetooth
I cant get to work bluetooth on Nexus S.
When i enable it and try to send something from SGS to Nexus S it says me "This tranfer was canceled by the user" (Nexus S)
SGS says "Remote device rejected your request"
When i try send something from Nexus S, but use not function Send, i use function Bluetooth - it says me "The application Bluetooth Share (process com.android.bluetooth) has stopped unexpectedly. Please try again"
I tried factory reset, wipe cache, tried flash any other roms, but got NOTHING helpt me. I have this problem on 2 phones (2xNS).
Can someone give me files of BlueTooth share? (com.android.bluetooth)

That's an interesting problem you have. Mine did the same thing transfering from my computer to my NS. I just tried it again when I read your post (to make completely sure what the error was) and it has automagically fixed its self.

Well, seems i need a file \system\app\bluetooth.apk

Bluetooth issue in car

Whenever I connect my phone by Bluetooth to my car's stereo, only the front speakers work, nothing from the 2 rear speakers. I've tried adjusting the fade and checking settings in poweramp but still nothing. I'm not sure if this would be an issue with my phone, the ROM, or the car audio system. I'm thinking it's an issue with the car's audio but I figured I'd ask here in case somebody else has had the same issue. I am on liquid smooth 3.0 April 24th build with elemental x kernel but I had the same issue with my galaxy s4
Sent from my Nexus 5 using XDA Premium 4 mobile app

Audio !!
Digital_Fidelity said:
Whenever I connect my phone by Bluetooth to my car's stereo, only the front speakers work, nothing from the 2 rear speakers. I've tried adjusting the fade and checking settings in poweramp but still nothing. I'm not sure if this would be an issue with my phone, the ROM, or the car audio system. I'm thinking it's an issue with the car's audio but I figured I'd ask here in case somebody else has had the same issue. I am on liquid smooth 3.0 April 24th build with elemental x kernel but I had the same issue with my galaxy s4
Sent from my Nexus 5 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I have no problem with nexus 5 and my car Bluetooth connectivity.
Make sure that your audio system, GPS and make and model are compatible with the bluetooth from the phone. Some other connectivity issues are that the car kit cannot decode the Bluetooth device that it is trying to connect. This decode means that the system cannot recognize the name. This is a frequent problem when devices have been upgraded. While your system may have worked fine before, upgrades can cause problems because the compatibility all of a sudden changes. This is an issue that has not really been addressed by the manufacturers.
Another frequent problem that can occur is that the Bluetooth will connect but then it will not stay connected and only one speaker is running,. Many times this can be a hardware issue.
So the bluetooth device can connect but it does not work properly. In this case there is an issue with the stereo connection to the Bluetooth unit. There is nothing actually wrong with the bluetooth or devices but this is a software issue. To fix it see if the manufacturer is offering any updates. If one person has had the issue then you can bet that many people will have the problem. This is a problem with the car kit software as no matter which phone or earpiece you use the audio will not play from the speakers. Check that the vehicle supports bluetooth audio as some only will support bluetooth phone calls. These are 2 very different things.
Most of the time, look into the settings for the bluetooth and the car system. If the car battery should die then the system may reset to the defaults. This means that all of the current settings will be lost and need to be reset. Not only will you need to check the settings in the car system but also in your phone or other bluetooth device. In order to correct the bluetooth settings the device will need to be connected to the computer.

joannn said:
I have no problem with nexus 5 and my car Bluetooth connectivity.
Make sure that your audio system, GPS and make and model are compatible with the bluetooth from the phone. Some other connectivity issues are that the car kit cannot decode the Bluetooth device that it is trying to connect. This decode means that the system cannot recognize the name. This is a frequent problem when devices have been upgraded. While your system may have worked fine before, upgrades can cause problems because the compatibility all of a sudden changes. This is an issue that has not really been addressed by the manufacturers.
Another frequent problem that can occur is that the Bluetooth will connect but then it will not stay connected and only one speaker is running,. Many times this can be a hardware issue.
So the bluetooth device can connect but it does not work properly. In this case there is an issue with the stereo connection to the Bluetooth unit. There is nothing actually wrong with the bluetooth or devices but this is a software issue. To fix it see if the manufacturer is offering any updates. If one person has had the issue then you can bet that many people will have the problem. This is a problem with the car kit software as no matter which phone or earpiece you use the audio will not play from the speakers. Check that the vehicle supports bluetooth audio as some only will support bluetooth phone calls. These are 2 very different things.
Most of the time, look into the settings for the bluetooth and the car system. If the car battery should die then the system may reset to the defaults. This means that all of the current settings will be lost and need to be reset. Not only will you need to check the settings in the car system but also in your phone or other bluetooth device. In order to correct the bluetooth settings the device will need to be connected to the computer.
Click to expand...
Click to collapse
I have an aftermarket Kenwood double DIN deck with Bluetooth 2.1. It connects perfectly fine, shows up with Nexus 5 when pairing, shows the song title, shows the name of the person calling... It works great when plugged in through the aux port, but of course doesn't show me any information that way. When I had the S4 it showed up as SGH-M919. It stays connected just fine and I had it playing for a while before I tried turning up the volume and noticed it didn't sound right and figured out the rear speakers weren't playing.
I just checked and noticed there is a somewhat recent update on Kenwood's site but it was still about 3 weeks before I bought the deck... I'll try doing that though. (edit) just checked again and the update isn't for my model, there's no software for it
Thank you for answering since I'm pretty sure now that it's a problem with the stereo and nothing to do with Android lol
Kind of embarrassed to admit it but...I did have Car Toys install it so... they probably didn't do a very great job. I knew I should have had either Best Buy do it or tracked down a friend that could do it. Oh well