Blutooth handsfree problem source still not clear - PDA2, XDA IIi, 2020i Software Upgrading

Hi,
I have radio 1.00.00 version with t he original Asia ROM and something funny has happened:
Since the beginning, I successfully connected to Logitech and Hello II BlueT headsets + a generic car BT handsfree.
I had to perform a hard reset after one of my progs messed the registry and reinstall everything - NOT from a backup but from scratch (less the troublesome prog <g>).
Since then, the BlueT handsfree does not work properly: I hear the ring but there is no volume control from the headset and I hear nothing + mike does not work. The rest of the BT conections work flawlessly, except for some rare disconnects from my BlueT RBT-2001 GPS.
The story in this thread is not encouraging but one thing is clear - the BT problems that I have are with the original radio and EROM and not after an upgrade. I have no clue what all this means except for the fact that tere is something quite problematic w/ the XDA IIi BT connectivity that I didn't have w/ any of my previous PDAs.
I thought to u/g the radio version only but decided to go for a full u/g (less the O2 stuff), hoping that my BT problems will go away.
Please correct me if I'm wrong - should I go ahead with the PUG O2-less upgrade or should I keep the old (but clearly buggy) versions?
Maybe all the problems that we have are connected to specific manufacturing HTC batches? Has anyone researched this? Is there any info correlating between problems and XDA IIi serial numbers?
Best regrads,
Al

Related

Bluetooth connection problem since radio upgrade!

I have upgraded to the new O2 Rom 169 and all seemed ok, until I started to install my bluetooth head set.
Since I upgraded my radio ROM to 1.03 I have lost the connections to my headset.
Prior to the upgrade it worked perfectly, now the recieve functions just will not work.
I have down graded to the radio 1.00 ROM but the same thing is happening. So the upgrade seems to have corrupted something more important.
Can anyone help here?
Downgrade to previous ROM
I have now downgraded to the previous ROM 1.11.162WWE, and that seems to have solved the problem.
I have installed the Radio ROM update and that seems to work OK now, so I will stick to this for the moment, unless someone has any better ideas!
Hello,
I had the same problem. It seems, the old bluetooth software won't work with the new radio rom. I tried my bluetooth connection before restoring my old stuff from backup, and it's ok. I didn't have any serious things in my backup, so I reinstalled my software from install cd's - sorry, I had no time to figure out, wich software causes this issue, but hope this information will help you.
Z.
i also having problem with my bluetooth but I cant say the problem is from new radio ROM or others because i dont know the real cause. A message display and wrote
"Sorry! Bluetooth can no longer be used because the licence is expired"
"BDA ff:ff:ff:ff:ff:ff: Key:E3E534E19B3E8214C543A73C0A8B9A9074DD3B1753515CD8"
after that, bluetooth will off automatically.
I have found since the upgrade to the new radio, thanks PUG.
That my Handsfree and Headset Bluetooth issues have lessened.
A few little glitches but will be on the outlook for another patch or upgrade in the future :roll:
Hmm,
I have radio 1.00.00 version with t he original Asia ROM and something funny has happened:
Since the beginning, I successfully connected to Logitech and Hello II BlueT headsets + a generic car BT handsfree.
I had to perform a hard reset after one of my progs messed the registry and reinstall everything (less the troublesome prog <g>).
Since then, the BlueT handsfree does not work properly: I hear the ring but there is no volume control from the headset and I hear nothing + mike does not work. The rest of the BT conections work flawlessly, except for some rare disconnects from my BlueT RBT-2001 GPS.
The story in this thread is not encouraging but one thing is clear - the BT problems that I have are with the original radio and EROM and not after an upgrade. I have no clue what all this means except for the fact that tere is something quite problematic w/ the Xda IIi BT connectivity that I didn't have w/ any of my previous PDAs.
I thought to u/g the radio version only but decided to go for a full u/g (less the O2 stuff), hoping that my BT problems will go away.
Please correct me if I'm wrong - should I go ahead with the PUG O2-less upgrade or should I keep the old (but clearly buggy) versions?
Maybe all the problems that we have are connected to specific manufacturing HTC batches? Has anyone researched this? Is there any info correlating between problems and Xda IIi serial numbers?
Best regrads,
Al

Bluetooth turns off randomly by itself

Hi all,
I'm running original WM06 ITA on my x7500 and I'm experiencing this problem:
when I receive a call I can't answer with my BT headset because X7500 BT is turned off even if it was on, so that I have to activate it again. So the problem is that X7500 BT turns off by itself very often in a day. How can I solve this problem? Any fix available?
THX so much!
hi
i have the same problem. this thing happens 2-5 times a day to me. the wicked thing is that somtimes it works perfect 1 or 2 days and when you think no everything is fine 'pop' its there again. fact is that bluetooth simply disappears, the indicator on athena is still blinking blue and the commanager tells bt is on, but my bt-headset (and other devices) signals that the bt connection is gone, also other devices cant find the athena any longer. i have to disable/enable bt in the commanager to get the functionality of bt back. i was thinking about returning the device for repair, but fearing the discussion of not using the original rom (the one with the superugly optical improvements of the provider ). and because maby it's a rom problem. my config is:
htc rom 2.21.407.1 (07/18/07) with extrom:2.21.407.101.
3 bt-headsets 1. sony hbh-ds220, 2. moto s705 and moto ht-820. all 3 are working fine with my universal but having these problem with the athena.
madbird
Hi...so we have the same problem...
I have the original HTC ROM just restored on my device and I have the problem. I read about it somewhere, other people with same problem but I can't remember where...
yes we are not alone i found serval posts on the net for htc and other brands like these:
http://forums.wireless.att.com/cng/...thread.id=27495&view=by_date_ascending&page=1
http://www.howardforums.com/showthread.php?t=867111
but no solutions. the only meaningful thing was for wm5, there is a fix of the bluetooth stack by microsoft (http://support.microsoft.com/?scid=kb;en-us;913683&x=13&y=14) but i did not found one for wm6.
mad
Hi guys.
I'm sorry to say that I had, a long while ago, the same problem with my Universal, and after a whole lot of tweaking, tinkering, and kinky massaging, all that was left to do was to have the device replaced. It definitly was a hardware problem, alas... :-(
I've had mine almost 4 months, stock 7501 ROM, and no problem like that ever. I leave BT turned on all the time. Sounds like a hardware problem.
been there done that fixed that
hi all,
yes, until I found the coolest und most functional BT headset, the cheapy prior ones caused same faults, even to the point of a hard reset ... why, well
no help to be found, just the notion of thinking and knowing, that the cheapy hardware out there was casuing it, not the htc.
example, some devices go into a kind of sleep mode and disconnect if not used, then while the htc still thinks its connected, it gets no reply from your other BT device. Take many SW packages or HW devices on your PC even, unplug the network and u´ll see, even they have unforseen problems ...
have fun, try HW makers like HAMA or Samsung, they rarely disappoint.
ollli
Aaaahhhh, I'm not alone.
Same problem here, but ONLY afair with WM6 (I'm using WM6, T-Mobile Germany). I can't remember, that I had this problem with the original T-MOB WM5 ROM.
Regards
Andreas
ollli3d said:
hi all,
yes, until I found the coolest und most functional BT headset, the cheapy prior ones caused same faults, even to the point of a hard reset ... why, well
no help to be found, just the notion of thinking and knowing, that the cheapy hardware out there was casuing it, not the htc.
example, some devices go into a kind of sleep mode and disconnect if not used, then while the htc still thinks its connected, it gets no reply from your other BT device. Take many SW packages or HW devices on your PC even, unplug the network and u´ll see, even they have unforseen problems ...
have fun, try HW makers like HAMA or Samsung, they rarely disappoint.
ollli
Click to expand...
Click to collapse
hi
i dont know if you read the post's above, but if you do you will see that the pda is turning off the bt, so it dont matter if you use one of the 'fantastic products' of hama (yes i also read your other 2 'advertising' posts of your overall 3 for them ). or any cheap crap stuff from sony or motorola like i do.
anyhow to came back to the real problem, i called my provider today and after explaining the problem, they suprise me with a complete hasselfree swap of the device to a new one in the beginning of the next week. when i get the new device i will test it first with the rom that installed, and then switch to the htc rom again to see if the problem returns again, i post the results here.
bye mad
Yeah, I think they're probably aware there's something wrong with some bluetooth chips, both on the Athena and Universal....
hi,
with wm6,
i have tested a BT 1.1 headset (Conceptronics) and works fine, without problems.
also, i have tested 2 BT 1.2 headsets (LG Style-i and Supertooth Nano). In the 2 cases, i have your related problems.
in my opinion, wm6 has a problem with the headsets that implements the 1.2 protocol.
all the headsets works fine with wm5.
regards
I have same problem with HTC Advantage running WM6 with LG Style-i headset ...
With my LG Style-i it keeps disconecting but with my SE BT headset it works fine (PK 3.0 Dual ROM) so in my case the BT on the phone doesnot turmn itself off, just has problems connecting.
Someone sugested a diff radio ROM might fix it - if so, does anyone know which radio does not implement the 1.2 protocol?
I'm using 1.47.51.00
hi there
i'm using my replacement athena for nearly one week now, and had not a single 'shutdown' of bt, not with the se ds220 nor with the moto 705 headset. i use the official german tmobile wm6 roms and not the htc version i used on the replaced athena. so it is not totaly clear if the change of the device or of the rom is making the difference, all other software packages are installed again. it also seems that the system is more stable overall in my every day usage, but that might be only my personal feeling.
mad
*EDIT* one more thing i noticed now is that when a call came in the sound is now played in the bt headset. before the sound came out of the speakers of the athena, and the bt headset only play its standard ringtone. seems that now everything is the way it should be .
BigDede said:
I have same problem with HTC Advantage running WM6 with LG Style-i headset ...
Click to expand...
Click to collapse
hi,
i' sure that the bt problem is due to the radio rom. i have the 1.38 radio rom and no problems with lg style. please, install it and test and report the results.
regards
bartito said:
hi,
i' sure that the bt problem is due to the radio rom. i have the 1.38 radio rom and no problems with lg style. please, install it and test and report the results.
regards
Click to expand...
Click to collapse
I have the 1.38 Radio version and I have the problem which is Bluetooth turning off by itself when using LG Style-i
ok, the problem is wm6
BigDede said:
I have the 1.38 Radio version and I have the problem which is Bluetooth turning off by itself when using LG Style-i
Click to expand...
Click to collapse
Did somebody tried to go through these update from Microsoft for WM6 ??
http://www.microsoft.com/downloads/...76-ff8d-460c-b454-6c487fd4c7d9&DisplayLang=en
http://www.microsoft.com/downloads/...c1-f0f4-4fd6-9366-b61e0ab59565&DisplayLang=en
http://www.microsoft.com/downloads/...5f-782b-4378-a228-f18af8c59aa3&DisplayLang=en
hi spiderman ,
i don't have teste (i have wm5) but the description seems don't have relation with bt stack procedures.
regards
Hardware or software
It's 4 months since last post and wondering if someone found a solution?

Big trouble with BT handset on Orbit 2. Need Help.

Well....
I happiness owner of XDA Orbit 2 (same as HTC Polaris at other form factor).
All work very fine, but one thing just kill me.
Orbit not work propertly with BT handset (Jabra JX10). I tried all posible ROMs: Bepe, BlackWidow, Rus 6.1, original HTC Polaris (WM6.0), original Germany ROM from O2. With all ROM behavior of BT handset was the same:
1. HardReset
2. Search BT device and connect it
3. Tried make call to anybody (I call to my second phone, but it doest matter)
4. First 1-2 calls all good. Sound good, mic work.
5. Tried incoming call.
6. At handset normal alarm tone, press button and..... first 2-3 sec normal sound good - then just noise (as white noise) and mic blocked.
7. All other calls like char.6. Noise after 2-3 sec.
I tried to changed all posible value. BitPool, BitRate, WaveDev and all other.... Tried stoped many service who can block BT (OBEX, ActiveSync via BT). Nothing change.
I think about hardware malfunction, but when I tried connect other BT device like external GPS reciever or HP notebook - I get normal work via BlueTooth. So, it mean hardware of bluetoth works good and with BT not work only handset.
Please, help me.
I got the same problem, but slightly different: the first 2-3 phonecalls are perfect, then there will be no sound. I tried with my 2 blue tooth headser.
with my headset, it happens 2-3 tims also.
But I met once the phone is not working when I trying normal phonecall without BT ot any headset.
I tried different ROM, it remains the same.
Similar problems with HF Jabra SP5050
Hands-free functioning with my previous cheep Nokia was excellent. Now the same Jabra SP5050 with Polaris: TRAGEDY !!!
qinyugang said:
I got the same problem, but slightly different: the first 2-3 phonecalls are perfect, then there will be no sound. I tried with my 2 blue tooth headser.
with my headset, it happens 2-3 tims also.
But I met once the phone is not working when I trying normal phonecall without BT ot any headset.
I tried different ROM, it remains the same.
Click to expand...
Click to collapse
That is.
I tried all BT headset which I have, it Jabra JX10 and Jabra BT10. The same....
Janhura said:
Hands-free functioning with my previous cheep Nokia was excellent. Now the same Jabra SP5050 with Polaris: TRAGEDY !!!
Click to expand...
Click to collapse
You mean Nokia BT handset worked with Polaris very well?
What model name its handset? I try to test with my smartphone.
updt. It seems I understood what you mean. So, it my situation. Both Jabra BT headset works good with all my Nokia phones and not work with Orbit 2 (Polaris).
Henry_Lee & others:
Try turn off and on again (5 sec later) Bluetooth on Your Polaris when headset is on. Is it working?
Do it every time you start using headset. Need patch from HTC.
dj_nsk said:
Henry_Lee & others:
Try turn off and on again (5 sec later) Bluetooth on Your Polaris when headset is on. Is it working?
Do it every time you start using headset. Need patch from HTC.
Click to expand...
Click to collapse
Yep, its work. Thanks for that. But it black magic and not good solution.
updt. It work until to first sleep (power button) longer than 5-10 min.
Then again needed reboot BT on device. F...k.
So you said you tried all kinds of ROMs. There are some ROMs out there which include the test version of the Radio ROM. I'm a strong believer of the thought, that the Bluetooth part of the test Radio is flawed and leads to results like the one you suffer.
If I were you, I'd check my Radio ROM version and if it doesnt match the shipping one (which tops out at 1.58.21.23) I'd search for that version and flash it. After the flash, a Hardreset might not be the wrong thing to do.
schaggo said:
So you said you tried all kinds of ROMs. There are some ROMs out there which include the test version of the Radio ROM. I'm a strong believer of the thought, that the Bluetooth part of the test Radio is flawed and leads to results like the one you suffer.
If I were you, I'd check my Radio ROM version and if it doesnt match the shipping one (which tops out at 1.58.21.23) I'd search for that version and flash it. After the flash, a Hardreset might not be the wrong thing to do.
Click to expand...
Click to collapse
I wrote later that I tried flash original ROM for O2 Orbit 2. It ROM contain radio 21.23. And nothing changes.
But, I not wish change radio ROM. Last radio ROM very well and good quality of GSM and fast GPS more important for me. The more so because, BT still not work.
up.....
At me and many my friends (with Cruis) a similar problem. The first, second call - all is good. Then - break of BT communication. Works with SE is better, the Jabra is worse
andykha said:
At me and many my friends (with Cruis) a similar problem. The first, second call - all is good. Then - break of BT communication. Works with SE is better, the Jabra is worse
Click to expand...
Click to collapse
Yep, tha same ****.
Today I tried Motorola H680, it good work with O2....
I think, Orbit2 or Polaris not work with BT headset with bluetooth version 1.1-1.2. Only BT v.2 and it headset just last 1-2 year ago.
Is the problem solved ?
Hi everyone !
I've got the same problem with my Jabra BT Headset. But i've found a way to make it work : in fact you have to get your headset already powered-on when you launch BT on your Cruise. Then, you can have regular calls.
Sometimes, it seems to disconnect by itself, don't know why. You have to power off everything, reconnect BT Headset, then re-launch BT service on Cruise.
Have a try and keep in touch !
It seems to me, a problem not only in version BT 1.2 or 2.0. I speak so since has bought SE 712 w/BT 2.0 and has dug into the same problems.
Have you got some news about BT & Cruise ?
Plantronics 590E with Orbit 2 works flawlessly... Distance, sound quality and voice command function is perfect without any issues..
...and A2DP, AVRCP function is same also... with mp3 or movie files... (..need registry tweaks.. i'm find these tweaks in this forum..)
Sorry for my poor English... :|

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.

Bluetooth car kit disconnects after a call...

I'm starting to struggle with my T-HD, I seem to have more fixing & patching applications on it than the nice day to day stuff you would want or expect on a high end device competing against the iPhone...
My current source of annoyance is that the bluetooth connection between the T-HD and my Landrover Freelander 2 that has been working fine for 6-months now either (a) doesn't connect or (b) does connect but when I dial out through the MMI saying "dialing" but then drops out or (c) we make a sucessful call but at the end the MMI states "phone disconnected" and when it reconnects it re-sync's the phonebook which all takes time...
Based on advice from the forum i've...
deleted and recreated the "pairing" ensuring everthing is visible,
used HD Tweak and Advance Config tools to fine tune the BT settings,
tried different BT COD values,
removed PhoneEX
installed JETware Mobile
All to no avail, the phone connection still drops.
My Nokia 6300 works fine by comparision and I can't fathom why, after 6-months of operation, this fault develops.
I've searched high and low for BT fixes, W6.1 drivers and HTC hotfixes but the options seem to be more "fixing applications" or a custom ROM nieth of which I'm keen to undertake as my T-HD is fill up with applications to fix basic functionality that should work.
Anyone else have any ideas? Can the BT drivers be replaced or updated?
HELP...
ROM ver 1.14.405.3 (22273) WWE
ROM date 12/09/08
Radio ver 1.09.25.14
BT ver 2.0/2.0+EDR
I got the same problem with my BT car Kit (Motorola T605).
I've only made it work if I connect the streaming on the BT configuration, but it have other problems as all the PDA sounds are routed through the car stereo, which can be uncomfortable if you are listening to the radio or a cd.
Could it be that problem is related to a 'power saving' configuration?
Hi there...
There seem to be plenty of fellow sufferers, strange that HTC don't seem to recognise their BT is flakey.
Sorry, what do you mean by "streaming"? I haven't seen that config.
and I have the "Power - Advanced" settings deselected (ie do nothing if inactive on mains power or battery)
All the best...
Well my HD won't sync it's phonebook with the Freelander 2... very occasionaly accepts an outgoing call via the mmi.
It will randomly lose connection also, requiring it to be re-synced.
Are you using the official ROM on your device? The bluetooth stack in the old official ROM is outdated, and honestly, garbage. Have you tried using a newer ROM, whether it's the official 1.56 ROM or a custom ROM? I used to have a ton of Bluetooth issues with my device and my car as well until I moved away from the official ROMs.

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