Database Users

8525 Bluetooth disconnects with headset mid-call

Hi All,
I have been reading a lot of messages on both 8525 and 8125 trying to isolate the issue and there doesn't seem to be a straight asnwer anywhere and hence I am trying to get the attention of the users here...
I have a pioneer navigation system with a bluetooth built-in. My previous phone (blackberry) and my wife's treo650 both stay connected with car's bluetooth when on call (never a disconnect). But my new 8525 gets disconnected mid-call (usually after 2 to 5mins, but have also seen a disconnect within 1min). That is, it does pair with the car kit and when there is no call going on, the bluetooth connection never dies. This disconnect only happens mid-call, almost all the times.
I have the latest ROM (1,34.502...., radio: 1.16), got the phone about 2 weeks ago from Amazon.com. Called cingular and they say could be faulty phone and I have searched other forums like audi message board where their car kits are also having the same disconnect problem with 8525, so I doubt this is a single phone issue.
I have taken the 'band' hack and forced the phone to be in either GSM or WCDMA mode and in either modes, the phone still exhibits the same problem (there might not be any connection between the two at all, bluetooth with GSM/WCDMA, but thought there might be some weird connection...but not the case thankfully).
I read somewhere about some bluetooth tweaks on 8125, but never found what those were. I need some help here otherwise I am going to return the 8525 and stay away from it. I need the bluetooth to work efficiently.
thanks for all your help
Phal
San Jose, CA

please help
I really need some help, clue or direction on solving or at least isolating this bluetooth issue. I love the 8525 but if I cannot fix this bluetooth mid-call disconnect issue, I will unfortunately have to return, which I don't want.
What headsets the 8525 works fine with (no drops mid-call)? May be that is a starting point.
Please also give me some links to 8125 tweaks that some talked about? pof/other moderators/anyone?
thanks a lot in advance!!
Phal

I have an Motorola H700, and every once in a while it will disconnect, looking at the phone after that, BT is turned off, turn it back on and it works again...
There are problems with the hardware and the API used to access it, good phone, but I don't think it was ready for the market yet when they released it. It is likely to be corrected in the next ROM release, last I heard from Cingular is mid 2007, but by the way things go, prolly around late 07/early 08.

I'm having similar issues with the BT headset I use, which is a Samsung WEP150. It'll drop midcall to the handset. I'll look and BT is turned off.
The only remote correllation I've found is that it seems to occur when I've received a new email or something a la ActiveStink.. And I haven't really been able to confirm that... But I have definitely noticed it happening then though.

my 8525 does this as well with my factory BT in my 05 Acura TL. Kind of frustrating, have not been able to figure it out yet.

Problems w/ Audi BT as well
Same issues with my Audi Q7 BT. I have seen posts in this and other forums blaming the MS bluetooth stack.
My 8525 worked flawlessly with my Garmin NUVI 660, never disconnected or failed to connect automatically. This is frustrating.

8525 Fix
I had the same problem with the 8525 and my Pioneer Avic-Z1 bluetooth kit.
I hacked the registry to force the bluetooth radio to stay ON, rather than going into sleep mode. This seems to have fixed the problem (although with limited testing at this point).
My calls would consistently disconnect with 2-4 minutes. After the hack, I've had 2 45-minute+ conversations with no trouble.
Here's the fix... install a registry editor (like PHMedit), and add a DWORD here:
HKLM\System\CurrentControlSet\Control\Power\State\ Suspend
Add a DWORD called btl1: (note the colon, the colon must be there), with a DWORD value of 2.
Good luck!

My Q7 as well i took the advice of wolfgram and did this to my phone i will let you know how it works it would be a shame to give up this phone but it is really useless if this feature does not work right.

Well this is what i did i did what wolfgram said and it still cut out but not as much so i took the checks off in the advance power mode and never let the phone go to sleep and it works all the time. HTC needs to upgrade thier bluetooth setting not to go to sleep. It must stay active at all times MY phone book and all other info posted into my Q7 with no issues at all and it even sees the bluetooth b4 the MMI system in the car Boots up..
Lance

Resolution I think
I turned off 'Making device discoverable to other devices' and it seems to have solved this problem, I am using the phone with a parrot kit and it kept disconnecting now it works all the time.

Treo 750 doesn't have this problem
Well, hopefully you owners of Hermes have figured out the fix. I had to return it and now got the Treo 750 and can gladly say the problem is not there. The treo 750 has the v1.2, but I guess following the replies here, that possibly Palm fixed the problem by keeping the BT radio on at all times.
In any case, here is the post I wrote in avic411.com forum - if you want to see any follow up responses by other owners..
http://avic411.com/forum/viewtopic.php?p=24170
cheers
Phal

Bluetooth cut out
I am having the problem too with the garmin Nuvi and the Tytn - which is ineresting seeing as how one poster had no problem with the Garmin device. Here is something else that is interesting - I did not have the problem when I had the HTC 1.18 Rom installed. After I flashed the HTC 1.35 Rom, the problem began. I have already tried upgrading my firmware on the Nuvi - that did not help. I also use a Nokia 800 bluetooth headset - and that never cuts out with either ROM. I will try turning off the bluetooth discovery first. If that does not work, will try editing the registry. Keep you posted.

Turning off bluetooth discovery did not work.

Turning Off Bluetooth Did Not Work For Me Either

this worked for me.....
http://forum.xda-developers.com/showthread.php?t=247520&page=10

drains the battery quicker, but no more bluetooth problems.....

Hey guys, has anybody found a solution for the auto turning off of the BT in suspend mode? its gettin really annoying

How do you stop BT turning off ?????

Hi,
Can't find anything in any other threads so here goes..
My M3100 (TYTN) turns bluetooth off when I turn off my Sony HBH 300 BT earpiece.
It doesn't happen everytime, maybe 50% of the time. It wouldn't be a problem but during the working day I connect and disconnect maybe 10 to 20 times and when I get back on the road and fire up the earpiece I suddenly find no BT.
I'm normally not in a place where I can safely stop to go through the connections screen to re activate it....
Not had this problem with any other phone, Nokia, SE etc...
I think it also happend once or twice after turning off my TomTom One whilst running the traffic BT connection to my phone...
It is getting to be a pain, so much so I'm considering using a OLD Nokia instead of the M3100. Only advantage is the M3100 allows more than one BT connection at the same time although you do have to connect the BT earpiece before connecting to the TT One unit...
Any ideas how I can stop it turning off without ME actually turning it off, never happens anyway, I just leave it on...
HELP !!
Phil-w

I have a similar problem and would love to find an answer before my 30 day return period is up! I haven't been able to find out WHY my BT radio always shuts off, but about half of the time I get in my car the BT is off. This - and the MS Voice Command hack not working with my particular HF - is going to make me return this thing.
BTW, I have Cingular 8500 with stock WM5.

Worked for me
Hey guys. I had a similar problem a while back.
I had installed a comm manager, and my BT was randomly shutting off. After getting some responses, I uninstalled the updated comm manager, everything has been working fine ever since.
I would recommend following the same course of action. If you don't have the original installed, maybe try installing a new one.
I recommend keeping the phone. It's great. There is SOOOO much you can do with it. If you are unlucky and got a lemon, that's a different story.
But I do not think this problem is common... good luck.

Last week I updated my ROM to the latest official AT&T release, and my BT problems *appear* to be solved.

All Bluetooth device Mic's dead

I hope someone is able to help me.
Okay I have the Wizard, upgraded to Wizard Mobile 6.
Shortly after, all my bluetooth devices (car kit, headset...) had their microphones die. In other words nobody could hear me when speaking through any kind of bluetooth.
I then flashed the Radio ROM to a different version, and bluetooth was repaired. But now the problem has returned for no reason.
Why does my Wizard's bluetooth audio in keep failing, yet its speaker works fine and I can hear other people?
Is there a recommended update to the Bluetooth Stack I can try?

CJSnet said:
I hope someone is able to help me.
Okay I have the Wizard, upgraded to Wizard Mobile 6.
Shortly after, all my bluetooth devices (car kit, headset...) had their microphones die. In other words nobody could hear me when speaking through any kind of bluetooth.
I then flashed the Radio ROM to a different version, and bluetooth was repaired. But now the problem has returned for no reason.
Why does my Wizard's bluetooth audio in keep failing, yet its output works fine and I can hear other people?
Is there a recommended update to the Bluetooth Stack I can try?
Click to expand...
Click to collapse
I do have exactly the same problem. After flashing XDA Mobile 6 Release 3, microphone has worked for couple of days, and then suddenly died. Interesting, microphone is working with Notes but not with phone. I went back to
XDA Mobile 6 Release 2 for some other reasons (read: 2MB more free memory for critical application) but the problem with Bluetooth microphone remains. Radio is 2.25. Any advice?
--
Pogo

There are also at least 3 people at the Wizard Mobile 6 thread with the same issue. Very surprised none of the experts here have been able to propose a fix. Makes the phone virtually worthless if you can't use it in the car etc.
As a workaround, I have found if you mute then unmute the phone volume, the issue is sometimes temporarily resolved for a short time. It always comes back though

I have been asked to join this thread. Per a PM:
We love the ROM you have provided, and are very thankful, however it was not until installing it that this issue arose. It does not seem fair to leave a number of people with a phone that is unusable for 'phone calls'.
Click to expand...
Click to collapse
(Bolding added by me)
I don't know what to tell you. If the rom doesn't work for you, then don't use it... Don't tell me its "not fair". I use MS Voice Command, and XM6r3 and have never seen this issue with my Bluetooth headset (Jawbone). I've also tested this out with a Plantronics Explorer 210 headset that I have and it has not problems with XM6r3 either. My A2DP headset (Spider) also works fine on XM6r3 with MS VC. I've stated this in the past when people have said they have BT issues on my rom. Sorry, but I can't reproduce it, so its hard for me to fix something that isn't broken for me.
Try this... Do a hardreset on your device (take a backup first if you want), then leave it as the base rom with NOTHING extra added. Run that way for a few days (how ever long it has taken before) and see if the problem happens again. If it doesn't then its not my rom but something being added to it (probably screwing with the registry someplace). If it does happen, then as I've stated before, I've seen a number of BT devices be flakey on WM6 (especially car kits). Try a different rom then. If someone with the problem can pin it down, I'll be happy to do what it takes to fix this issue if its something in the rom that is causing it.

Thanks mfrazz. What wasn't fair was not the bug, but that you had not responded to previous mentions of it, i.e. not fair to leave us with it. We love the ROM and put a lot of our life in your hands in a way, as we rely on our device so much for work and play. Hope you understand.
Now then, I have already tried a hard reset and the problem never occurs, until WM6 is put back on. Sure, 'use another ROM' is all very well, but we love yours - again, hope you appreciate the sentiment. If you're in a relationship, are you the kind of guy who tells a girl who loves you, 'find another boyfriend', or do you try to make it work
SO, I am wondering if this is related to the glitch you mention where sometimes when switching out of vibrate mode, the ring tone becomes muted. For that, your solution is to play the ringtone again, then it becomes unmuted.
Similarly, our Bluetooth devices mic's are being muted, and if we mute then unmute them again, then they become unmuted. A link that helps point you in the right direction?
Please note, this is not certain bluetooth devices being 'flaky', this is ALL devices. 4 at the latest count, including rock solid Nokia CARK7W car kits and Jabra headsets.
Some people put it down to MS Voice Command, which I have never installed. What does that program do, do you know, to cause the bug? Again I hope that might help point you in the right direction.
Please don't dump us Let's try to fix what is wrong in this relationship

BT problem solved?
CJSnet - not sure if you have resolved this. I was having the same problem and noticed people with reTouched dialer were not, so I loaded that dialer and the problems went away. I am using a Plantronics Voyager 510. Seems the problem might be with the standard dialer.
Hope this helps
CJSnet said:
There are also at least 3 people at the Wizard Mobile 6 thread with the same issue. Very surprised none of the experts here have been able to propose a fix. Makes the phone virtually worthless if you can't use it in the car etc.
As a workaround, I have found if you mute then unmute the phone volume, the issue is temporarily resolved for a short time. It always comes back though
Click to expand...
Click to collapse

Thanks, I'll give that a try. However WM6 has pretty much finished the Wizard for me, and I'm hoping to get a TyTN II soon as a replacement. Shame.

Bluetooth and HTC touch problems

Does anyone else have a problem with their Bluetooth and HTC touch? I have tried 2 motorola and a LG BT headset and no one can hear me, but I can hear them. I tried pairing and repairing. I deleted it and added it as a new device. I have even tried the BT with another phone and it works with that phone with no problems, so I know it's my phone. I even tried a hard reset. Does anyone have a solutoin to this problem? I have the latest ROM update from HTC's website for a Bell HTC touch. My motorola headset was working fine, but I think after the latest Bell ROM update it stopped. Does anyone else have this problem or can anyone suggest a solution? thanks. paul.

my jawbone did this but my plantanics 510 fine

My jawbone works fine but there's a problem using hands free connection with my '05 range rover. The phone and the truck connect but then the connection is dropped. My buddy has a motorola razor and his phone works great w/my truck. It appears to be my phone that's the problem. Any suggestions on this?
Thanks so much.

jarmijo said:
My jawbone works fine but there's a problem using hands free connection with my '05 range rover. The phone and the truck connect but then the connection is dropped. My buddy has a motorola razor and his phone works great w/my truck. It appears to be my phone that's the problem. Any suggestions on this?
Thanks so much.
Click to expand...
Click to collapse
This thread is 7 months old...
What ROM are you running?

I am running the NFSFAN 6.5 rom V11 and have he same issue with a motorola BT headset.

edit: i just noticed that the initial question was about a newer ROM update and bluetooth, but ill leave my initial reply here, cuz i often look for solution in old posts, so if this can help anybody :
NFSFAN 6.5 rom V11 and bluetooth
i dunno, but my bluetooth stuff somehow works with the 6.1 update, if you cant find any working solution within an hour, id suggest using a "well tried and tested" ROM version, like the 6.1
i stopped picking the "latest and greatest" in cars, devices, apps, or O.S. for the last two years, and been living a whole lot happier since.
about my 6.1 bell mobility ROM and bluetooth :
i like to tweak my weapons alot, my htc touch has a 6.1 ROM update, and i use bluetooth everyday, and it KINDA works well, enough for me anyway...
listening to mp3 and flv everyday on the transit,
then switching at work on the audio dongle adaptor on the pc,
using an pair of sonorix bsh-100 ( foldable stereo headset + optional plug-in mike)
to me the thruth is that bluetooth is a ****ty technology, i love it, and it's well taught,
but the developpers quickly code ****ty interfaces to it.
my settings all work from htc touch to dongle, but i often have to connect the touch to the headset like up to 3 times, where it tells me its connected, but isnt, when i hear the beep, it means it actually IS.
same at work, connect sometimes once, twice, even four, it eventually connects.
it's isnt button wear off or bad contact, its just the code is ****.
i rented a SUV that had bluetooth, tried connecting my phone, worked first time, a week later we rented the same SUV model, and for the whole trip i wasnt able to connect at all... back at the rental we tested the SUV with the clerck htc touch ( nice coincidence ) it worked right away.
i want to add here that whenever i try to connect through bluetooth, it usually works the first time.
my point is, bluetooth creators did a fine innovative job, but werent supported by developpers.
test your bluetooth phone alot with friends owning bluetooth accessories, youll detect behaviors after a while, and will learn to know its "demons" !
a bluetooth everyday user

V13 seemed to fix the issue
Just upgraded to V13, seems like BT works a lot better.
A bit on my history with BY, I just upgraded from a motorola V710, had a Moto Q for a few months too. Never had any issues with BT using the same Motorola BT earpiece, and varouis others through the last 5 years or so. Always worked like a champ, this was my first experience with BT issues.

Bluetooth still doesn't work properly!

My X1 has a very annoying problem with it's Bluetooth. During a call using Bluetooth handsfree the phone will drop the Bluetooth connection, leaving the call connected so annoyingly the caller can hear me cursing the unreliability of my phone. I then have to finish the conversation holding the phone to my ear without the headset.
I called Sony Ericsson, who told me to update the firmware. I did - to R2AA007 - makes no difference. They then said it was a defective phone, so I got a new one sent to me...
...this one has worked great for a month, but yesterday the battery ran almost flat and whilst on a call using handsfree it started playing up again. Now it does it all the time again, even though the phone has been fully recharged and rebooted.
I have been very careful not to change any settings with this second phone, no installs of anything. This is a Vodafone UK phone if it makes any difference. Any idea how I can get this working again? Even without the handsfree connected I can see the display flash 'Bluetooth on' at random intervals indicating that it keeps dropping. Sony Ericsson say that this is not a firmware issue that needs fixing now - what do you guys think?

there are many posts regarding your problem. one thing is for sure,you are not the only one. look here http://forum.xda-developers.com/showthread.php?t=480698 and here http://forum.xda-developers.com/showthread.php?t=471181 here too http://forum.xda-developers.com/showthread.php?t=448703 i have my mbw-150 and my hbh-pv712 connected at all times to my x1 the watch is always connected but my headset disconnects randomly as you mentioned even during a call. there is no problem with your phone it's a software issue.

Thanks for the links. What annoys me is that Sony tell me there is no problem and they won't report the bug to their firmware team because "it's been fixed in R2A". This isn't the case, and it doesn't give me much hope for firmware R3A.

Same problem here
I experienced the same problem. Got my X1 in december 2008. Problems started in mid Januari, about a month of good Bluetooth operations, it started to give problems. During a call the Bluetooth connnection is lost, but the call stays open. Can reconnect Bluetooth again during the call, but after some time (sometimes seconds, sometimes tens of seconds) the connection get lost again.
Was glad when the new firmware arrived in Feb 2009. Download it, and the problem was gone fore about one month. Mid march the problem started again. Downloaded (the same) firmeware version again and the problem was gone again for some time. Last week it reappeared again
My conclusion: the Bluetooth bug wasn't corrected in the latest firmware version. Just reinstallation of a new firmeware version resets the phone and the the problem is gone then for some time.....
Seems that there some kind of an internal timer/counter that corrupts good bluetooth operations. I don't want to reinstall "firmware" every time again because I have to reconfigure my phone then every time, which takes a lot of time.
I hope that Sony finally will correct this most irritation bug!!!!
In the mean time I use a Bluetooth restart programme that "turns on" bluetooth every second. This helps moth of the time.

This works for me
In the Bluetooth-Device-Manager tap and hold the stylus on the headset you want to use until a popup is shown, then select use as headset. This worked for me when i have had some problems with one of my headsets supporting more than the "Handsfree-Profile" .
=> better connection under R1, best connection under R2(using R2 since official release)
Good luck WOODY

Hey Guys,
I think i have the solution for the bluetooth problem. i had my Xperia since 11/2008.
i never had a problem with connection when i used my headset. the problem was with the I-Drive disconnection randomly.
I flashed multiple roms from Itje and Jack with the same problem always.
now for the past 2 weeks i have been using Itje V5.5 with no problems what so ever.
the key is to turn bluetooth off in the comm manager everytime you wanna install new programs. i truly believe that installing software with the bluetooth on disrupt something ???
Hope that helps.

mdshahed said:
the key is to turn bluetooth off in the comm manager everytime you wanna install new programs. i truly believe that installing software with the bluetooth on disrupt something ???
Click to expand...
Click to collapse
Honestly, it make no sense to me....

try it!! it will work ...

@mdshaded
I hope youre kidding, I've had BT problem (BT turns off) since I got this phone last year.
With Itje's WM6.5 RC1 I still have the same problem.

I am not Kidding, I tried all cooked and original roms. I had a pocket PC phone for the past 3 years: Trinity, Kaiser and now the Xperia.
Again my dropped BT Connection were with my Car BT system, never with my Stereo BT headset.
try to hard reset and then install Itje V5.5 and keep your BT off until you are done installing all your programs then turn it on and report back.
Cheers

mdshahed said:
I am not Kidding, I tried all cooked and original roms. I had a pocket PC phone for the past 3 years: Trinity, Kaiser and now the Xperia.
Again my dropped BT Connection were with my Car BT system, never with my Stereo BT headset.
try to hard reset and then install Itje V5.5 and keep your BT off until you are done installing all your programs then turn it on and report back.
Cheers
Click to expand...
Click to collapse
I had tried more phones (Eten M600, Asus P525, Kaiser, X1), and did a lot researchs and only HTC's one (Kaiser, X1, Diamond, TP, HD ...etc) gives such issue. Not on my Asus P525 and M600. And I had tried many A2DP devices (Sony: DS-205, DS225, DS970, DS980, Clip-D Radio, Jarba (forget what model), JVC-BT1 (car system)) and only HTC devices give me issue.
And your suggestion of turn off bluetooth while software installation make no sense as installation only perform files coping + registry registration which I don't see any relationship from BT issue.

Dear Jack,
I know it does'nt make any sense. but i had this problem on other devices and was always corrected with a cooked rom except with the Xperia..
there is nothing to lose.. just try it..
my phone had no single dropped connection for 2 weeks now.
All the Best.

what bluetooth issue, ive been using hbh ds-200 since ive got the xperia (used on buses, around the house and alot of places) works great and has a further distance than p1i but only has an issue of button compatability. i think it could be the the bluetooth device ur using or the lack of software. may be wrong completley but hear me out ive had it rnning for ages with music on or durig a phone call cause i cant be bothered to pull out of its case to avoid scratching the phone (i know its stupid) but like i said it is working, for me atleast

same problem ...
I'm experiencing the same problem:
my X1 periodically drops the connection to my BMW iDrive while I'm speaking. But, when I'm not in the car I'm using a plantronics voyager 855 and never had a problem ! So there seems to be a problem with specific bluetooth devices.
Before the X1 I had a touch diamond and it worked without any problems with the same iDrive.
Thomas

Dear Thomas,
i am glad that you mentioned your problem with the I-Drive. I did not have a single drop in BT Connection for 2 weeks now. I truly believe that installing some software impairs the BT connection with my I-Drive.
Again never had any problems with Headsets.
My I-Drive Version I believe was newer than V.25.
Cheers.