Database Develop

New Bluetooth Stack for Qtek 9090

Hi all,
Since I think we all can agree to that Bluetooth on Qtek 9090 is ****e, I've been snooping around a bit, and eventually I managed to get a brand new upgrade from Dangaard
This patch upgrades the Bluetooth Stack from build 2200 to 3500, and I have experienced some great improvements since I upgraded the device. I’m not done testing yet, but I’ll let you guys know if I find something interesting. I can’t post the file right now because the only link I have to the internet at the moment is my GPRS connection, but it was my understanding that Dangaard will post it on their site within a few days anyway.
I’ll get back to you with more information soon.
Mojn.

cool, please let us know....
However, if you have such a good relationship with DAANGARD, could you please aske them about XDA2 and SE?
THANX
buzz

Found it
http://www.mywindowsmobile.dk/modules.php?name=Downloads&d_op=viewdownload&cid=24
The site is in Danish, but it says that you have to copy both files to the Qtek and then execute them from the file explorer. First do the WWE one, then the Patch file, and then make a soft reset.
That'll do the trick ;-)
Have fun.

Hi,
Has anyone tried these patches? Does it works?
Sam

samvds said:
Hi,
Has anyone tried these patches? Does it works?
Sam
Click to expand...
Click to collapse
I have installed them. Before these patches my Qtek 9090 would turn on by itself when I have paired to the bluetooth carkit. Now it does not do that anymore. I never had problems using the bluetooth carkit together with bluetooth TomTom. So I can not say whether the patches have solved the issues when using bluetooth headset together with navigating using TomTom bluetooth.

've installed and tested the BT patches. I had several problems with the BT headset that are now solved.
- Headset was not reconnected after power off and on again: solved
Now it behaves in a strange way, that the BT keeps connected while the device is powered off and when you turn it on again, BT turns OFF and then On again in a second and the headset is reconnected.
Let's see if this has an impact on battery, as prior the patch, the battery was going down dramatically if the headset was paired!
For the moment I can recomment it, I have a Qtek9090

bluetooth patch
It's a shame to make a path after selling a defecting device.
Each patch that i have tested doesn't work enaugh for me.
It resolve some bugs but audio quality and crackssss are already here.
I have qtek 9090 and motorola 850. Poor audio quality and i have to stay front of the device to speak. If i stay front of it work well.
Is there another patch to test after v3000 and V3200 because it doens't resolve audio quality and distance.

Im using the update from windowsmobile.no ( aka mywindowsmobile.dk )
Found this one
http://www.qtek.nu/default.asp?nc=9683&id=110&element=0
It should update
GSM Radio
Bluetooth MMS Klient
Fix the sound troubbles for the reciver of a call from the phone.
can be downloaded here :
http://www.qtek.nu/files/BA_WWE_BP_12200_126_10600.zip
I wont/cant do anything with it, since it will only install on Swedish 9090, but maybe some off you guys can get the important files out of it??

yep i agree can someone post the important stuff?

I have Swedish QTEK 9090 and i also had installed this new ROM.
It wont fix this well known Jabra and Qtek crackling problem.

It's english, the above ROM 1.22 and instals on english Qtek... I've just done it.

XzaniX said:
It's english, the above ROM 1.22 and instals on english Qtek... I've just done it.
Click to expand...
Click to collapse
All Rom's released in Scandinavien are English.
The installer checks the country code on the phone and wont installed if it's not Swedish.
Well it is suppose to not installe, but for some reason a Norwigean guy over at windowsmobile.no got it installed without problems.
It wont install on mine, bought in Norway.
Does anybody know where to change the country code??

download
Non of the links work, can someone post the cab file?

Unofficial Bluetooth Stack "Upgrade" For iMate PDA

Check out this link from PocketPCThoughts.com for a new Bluetooth patch from Broadcom for the PDA2K...
Fellow MVP Helio Diamant, of Pocket PC Freak, has gotten a fantastic little nugget for iMate PDA2k owners:
Quote:
A friend of mine has just come back from CES and brought with him a little CAB file that was being given by the guys from Broadcom there. They told him we can publish and offer for download, so I am putting it here to you guys too.
When installed, this CAB adds the following profiles to the Broadcom BT stack in the PDA2K:
1. High-Quality Audio
2. Keyboard
This means that those of you holding stereo headsets can now connect them to PDA2k and here music, navigation instructions, etc from the device. As well, Bluetooth Keyboards are supposed to work well.
Early reports suggest it works with a number of devices, including both HTC Blue Angel and HTC Harrier units; it might work with other Broadcom-based (i.e., Widcomm) Bluetooth units, but there's no guarantee. If you're interested in playing "with it, you can download the CAB here. Note: This update is unofficial and unsupported; install it at your own risk, and do a backup first! As far as I know, it's a RAM update, but I haven't tried it. Good luck if you do. "
http://www.pocketpcthoughts.com/images/parekh/misc/PDA2K_BroadcomCorp_BTUpdate.cab

i already installed on my i-mate and had to do hard reset since it hanged in boot mode.
thanks to sprite backup i am back

noviur said:
i already installed on my i-mate and had to do hard reset since it hanged in boot mode.
thanks to sprite backup i am back
Click to expand...
Click to collapse
Noviur,
On which device did you try ? i-Mate PDA2k?
cheers,
bins

install seems not to work
Just tried the cab install (both from my SD card and Program Files location - after resets), but nothing seems to have changed on my i-Mate PDA2k with Rom 1.22.162 WWE.
1. No BT Services were added (still only File Transfer, InformationExchange, Serial Port, Personal Network Server, Dial-up BNetworking Server, Hands-Free),
2. No update seems to have happened, all module versions remained at 1.0.0.3500 (except obviously the BTPluginManagerCE.exe [1.0.0.1]),
3. Despite the dialog box telling it is "writing information for Remove Programs" it can not be found back in the Remove Programs.
Any clues?
cheers,
bins
P.S. Just in case, and like Noviur, reverted with Sprite Backup

The version information in the package suggests 1.6.0.0600
did you install the 1.6.0.0600 upgrade before u installed this?

i installed it.. the new 2 profiles show up but the audio one doesnt work ..
i have pda2k
any help???

I installed the new patch on an SX-66. It doesn't upgrade the Bluetooth stack or provide new services. But it does add 2 new profiles. One for a Stereo audio headset (this won't work with a Hands free device since the profile doesn't include support for a MIC.) and one for a keyboard.
I also switched my Bluetooth stack to the 1.6 version posted here. This seems to be a stack based on Widcom as opposed to Microsoft. Although my device worked and seemed to pair faster my Handsfree device didn't come on when dialing the phone. So I switched back.

Remco, thx, installed the Broadcom 1.6.0.600 cab-file first and afterwards installed the PDA2k cab-file.
Update seems to have worked and indeed have the two new client profiles.
Will check in the store tomorrow if the HQ audio works indeed and if no other nuisances arise.
Will keep you in the loop.
cheers,
bins

Installed it on my Qtek9090 with rom 1.22.00/1.06.00/1337.38/1.22.556
I was able to bond my Logitech DiNovo keyboard to the PDA and use it !
It works very well, very cool to be able to type on a full size keyboard on your PDA.
I don't own a BT audio headset, so i wasn't able to test that.
All other devices like my GPS mouse, Bluetrek G2 headset etc. seem to work ok as they did before.

nop, it was I-Mate PPC. I new it is for PDA2K, but wanted to try it
Previously I installed Widcom BT 1.6.
No luck for me ... for now at least

Did it answer calls through the b/t headset? Mine wouldn't connect to the headset for outgoing or incoming calls. Also if it does work,which PDA2K cab did you use?
Thanks
bins said:
Remco, thx, installed the Broadcom 1.6.0.600 cab-file first and afterwards installed the PDA2k cab-file.
Update seems to have worked and indeed have the two new client profiles.
Will check in the store tomorrow if the HQ audio works indeed and if no other nuisances arise.
Will keep you in the loop.
cheers,
bins
Click to expand...
Click to collapse

anybody tried it on an magician device?

The file is no longer there!
Could someone please upload them agian or e-mail it to me
[email protected]
Thanks

Does this upgrade support the Audio Gateway preference (which enable u to stream mp3s to a BT headset)??

can somebody please email it to mack AT netcom.no ?
(the download URL does not work)

hi,
I have look high & low for it.
can i have the bt upgrade too? my email [email protected]

and that there is of the option of the BT dial up modem??
for when they will troubleshoot this.
greetings

Here's the file
I tried it on my HTC Himalaya. It wouldn't play any sound, not even callers voice. I had to hard reset the unit.
Good luck
Johan

Hi,
I just got my HP bluetooth headphones... and I absolutely love them!!!. The range is ok... not great, but enough to be considered fully usable. It crackles if there is some physical resistance between the MDAIII and the headphones, but other than that, they are awesome...
Anyone that is considering to get them, I highly recommend it. But be sure to have a 3500 bluetooth stack (with the extensions posted here of course) and Radio 1.06.02 (I am not sure whether 00 would do equally, but I recommend 02).
Treo

Me too. Can someone email me a copy of this file?
[email protected]
Thanks!

BT3900 or BT3500

Hi all,
Just got my PDA2k and like all of you I'm suffering the bluetooth problem. Can someone tell me which is a better fix the BT3500 or BT3900? Does this fix the problem of headset bonding when phone resumes? Does anyone have a link to where either can be downloaded please?
Thanks
Medube 8)

The files are here ftp://xda:[email protected]/BlueAngel/CAB_Files/Bluetooth Upgrades/
I found the 3900 a little bit better, but i think its very independent for each setup.

i sold my XDA2s to a friend (probley soon to be ex friend) anyway as it hard reset its self he gave it back to me to reinstall his tomtom. As there was a rom upgrade i did this as well, i also used the the BT3900 from my XDA2i but i could not get the 2s to pair with any BT headsets, so i had to go back to the BT3500 that came in the new rom upgrade.
John

Im trying to get hold of bt 3900 but i cant get on to the ftp server? do I need special access or is it something im doing wrong (like clicking the link with the wrong finger or somthing :shock: )

irelmo said:
Im trying to get hold of bt 3900 but i cant get on to the ftp server? do I need special access or is it something im doing wrong (like clicking the link with the wrong finger or somthing :shock: )
Click to expand...
Click to collapse
Try using an FTP klient instead of using your browser.
Host : xda-developers.com
User : xda
Pass : xda
Just put the user and password in lower case

I'm confused. Isn't OEM_WWE_160_600.sa.CAB (version 1.6.0.600) a newer version than 1.0.0.3900 or 1.0.0.3500?:
ftp://xda:[email protected]/BlueAngel/CAB_Files/Bluetooth Upgrades/OEM_WWE_160_600.sa.CAB
Click to expand...
Click to collapse
I'm running this version without problems and includes the "Connect to a keyboard" and "High quality audio setup" bluetooth profiles.

andresp said:
I'm confused. Isn't OEM_WWE_160_600.sa.CAB (version 1.6.0.600) a newer version than 1.0.0.3900 or 1.0.0.3500?:
ftp://xda:[email protected]/BlueAngel/CAB_Files/Bluetooth Upgrades/OEM_WWE_160_600.sa.CAB
Click to expand...
Click to collapse
I'm running this version without problems and includes the "Connect to a keyboard" and "High quality audio setup" bluetooth profiles.
Click to expand...
Click to collapse
Well as far as i know, the 160_600.sa.cab is a Widcom release, whereas the 3500 and 3900 are Broadcom, and these 2 companies are now the same....again as far as i have heard.
I tried the 160_600.sa.cab but it was a total disaster. Dont let the numbers fool you. Since these are from 2 different companies.

someone has explained in other post that Widcomm 1.6.0.600 is older than Broadcomm 1.0.0.3900. After Broadcomm bought Widcomm they reseted version numbering to 1.0.0
Currently the latest BT stack I was able to find is 1.0.0.3900 and audiogw.dll - 1.33g.00. There is 1.35.00 DLL but it has problems transferring call from BT to handheld. audiogw.dll is the reason of bad sound quality over BT.

I have upgraded to BT 3900, after soft reset the sound cracled like hell, so I reinstalled 3500 and the fix for it (posted on the FTP), then the sound was better, I then reinstalled 3900 and it now sounds good as well. I noticed that the crackle is intermittent on both 3500 and 3900.
Yesterday evening I fully charged my PDA2k and this morning it needed to be charged again, I only made 4 short calls. But I must say that I had my SE HBH-660 off all the time!!??. could this be the reason or the 3900.
P.S. I run my PDA2K with the Arabisation software, and I used to have a lot of hanging and freezing but after cooking the ROM and updating the Radio to 1.06.02 and replacing Caller ID 1.17 (in the extended ROM) with 1.20, it has been running without trouble (for three weeks) in spite of loading lots of other software.
I reckon removing Caller ID 1.17 from the Extended ROM was a good thing!!
ROM Version 1.31.00 WWE
ROM Date 12/13/04
Radio Version 1.06.02
Protocol Version 1337.38
ExtROM Version 1.31.112 WWE
Simple.

Mamaich
Does BT 3900 come with this version of audiogw.dll - 1.33g.00 or is this a sperate file file you have upgraded. If it is can you tell me where to get it from. Ive tried a search here and on google .
Out of interest how do you determine the dll version in pocketpc as this file doesn't come up in the bluetooth manager file list?
I'm using the HP headphones and am pretty happy but the quality is a bit scratchy when you put the XDA2s in your pocket, would be nice if this could be fixed.
Thanks
Wayne

wth said:
Mamaich
Does BT 3900 come with this version of audiogw.dll - 1.33g.00 or is this a sperate file file you have upgraded. If it is can you tell me where to get it from. Ive tried a search here and on google .
Click to expand...
Click to collapse
Uhh...did you read this thread?
The link is in here...
But ok, here it is again: ftp://xda-developers.com/BlueAngel/CAB_Files/Bluetooth Upgrades/
Look at the BT_Fix as wel...what version the audiogw.dll is, I am not sure, but I think the fix has the latest version.
Cheers,
Happy

HappyGoat - Uhh...did you read my question?
as wel...what version the audiogw.dll is, I am not sure, but I think the fix has the latest version
Click to expand...
Click to collapse
Sorry perhpas I didn't ask the question clearly enough, but what I was asking was.... Is that version of the audiogw.dll included in the 3900 patch?
I only asked as it was stated as a particular version and I dont know how to check the dll version info.
Thanks
Wayne

BT 3500 better than 3900
Yesterday evening I fully charged my PDA2k and this morning it needed to be charged again, I only made 4 short calls. But I must say that I had my SE HBH-660 off all the time!!??. could this be the reason or the 3900.
Click to expand...
Click to collapse
I had the same experience this weekend.
I used to charge it on Friday night and use ir regulary during the weekend with my HBH-600
This weekend, Sunday night battery was exhausted.
I also think that BT 3500 is more stable

audiogw.dll is not included in this one BroadcomCorp_BT1.0.0.3900.cab
Mine is eating power like i have never seen it done before.
Only think .3900 did for me, it's faster to end a conversation pushing the button on the Headset.

I have BT 3900 installed and don't have problems with battery. I have a bonded BT headset and BT activesync connection with PC.
Regarding audiogw. Fix_For_BT.sa.CAB has an updated TIBinaryParser.dll. It deals something with WiFi and BT coexistence. I don't use WiFi so I didn't notice any differences. This archive also has 1.35.00 audiogw.dll that has problems transferring call from headset to phone. I don't recommend installing it. It was taken from Harrier 1.35 ROM and is probably incompatible with other ROMs.
I've attached audiogw.dll that I'm currently using. It is 1.33g version.

I just need some clarification please. If I want to update my BT 3500 stack which of the following cabs should I install ? One of them or both and in what order ?
BroadcomCorp_BTUpdatefor1.0.0.3500.cab
Fix_For_BT.sa.CAB

firas said:
BroadcomCorp_BTUpdatefor1.0.0.3500.cab
Fix_For_BT.sa.CAB
Click to expand...
Click to collapse
You don't need any of these 2 CABs. The first is high quality audio/BT keyboard profiles update and the second is a buggy DLL from Harrier ROM that cause problems on other devices. You need ftp://[email protected]/BlueAngel/CAB_Files/Bluetooth Upgrades/BroadcomCorp_BT1.0.0.3900.cab and the attached CAB in my prev. post. You may install BroadcomCorp_BTUpdatefor1.0.0.3500.cab if you use BT keyboard or have headset that supports high quality audio profile. I have these 3 CABs installed for 3 days and don't have BT problems.

The 3900 file is remove from that directory. Any idea why it's been removed?

rikurn said:
The 3900 file is remove from that directory. Any idea why it's been removed?
Click to expand...
Click to collapse
Maybe someone thought it was funny to delete it.
It's back there now.

Has 3900 improved static?
Has anybody with a PDA2k installed BT3900 to improve static on their BT headset with any success? I'm currently on 3500 through the imate ROM build, and can pair with my HS-850, but the static is pretty bad regardless of the range.

Blue Angel - A2DP Bluetooth

Hi all
I have got Blue Angel:
ROM: 1.42.00 WWE
Radio: 1.13.00
BT: 3900
Last week I upgraded to the T-Movbile 1.42 Rom. I then installed the A2DP profile patch and was amazed that my Omiz OMS600 headphones were actually working using the high quality audio profile, and they were working very well.
The other day I did a hard reset to sort out a few things and left it at that. Later on when I came to reinstall my A2DP it wasn't working, nor was using the headphones as just a normal headset. I tried all sorts, including downgrading my ROM because at that point I was wondering whether or not it was actually on a previous version that I had it working.
Anyway... eventually I decided it was the headphones that had an error so emailed Omiz who were very helpful and sent me the download for their firmware flashing utility. This upgraded the ROM of my headphones from 1.06 to 1.25. I can now pair my headphones as a headset but not as High Quality Audio. I can get it to add a High Quality Audio shortcut in BT manager but when it trys to connect it says: "connection failed". Before it was also saying "service unavailable on device" or somthing similar.
Any assistance would be good.
Thanks a lot.

s_t_harvey said:
I then installed the A2DP profile patch and was amazed
Click to expand...
Click to collapse
Can you, please, tell me where to find this patch?
Someone knows if it works for wm5??
Thanks!

A2DP & WM5
Hi there,
I got the patch from: ftp://xda:[email protected] Upgrades/BT profiles for build 3500/
But I'm not sure if it will work on WM5, I think I have read that it will not, this is my main reason for not moving to WM5 yet... although at the moment while i can't get A2DP working I am not much better off.
How are you finding WM5? Is it reliable enough to compete with WM2003 yet, or is there still a bit of work needed?

It doesn't work under WM5. WM5 has a Microsoft bluetooth stack, this patch does not apply.
WM5 on the BA is quite stable if you have the time to work with it. I am not going back. If somebody comes up with a BT fix for the stand-by problem that does not drain the battery, all of my issues will be fixed.

A2DP on WM5
Thanks for that... I might consider upgrading one evening when I have nothing better to do!
Do you rekon we'll ever see A2DP on the MS bluetooth stack?

Re: A2DP on WM5
s_t_harvey said:
Thanks for that... I might consider upgrading one evening when I have nothing better to do!
Do you rekon we'll ever see A2DP on the MS bluetooth stack?
Click to expand...
Click to collapse
Yeah I think so. Apparently it's not out in the wild yet, but w/ BT 1.2, a lot of people will be looking to do more with it.

shuffle said:
WM5 has a Microsoft bluetooth stack, this patch does not apply.
Click to expand...
Click to collapse
Did you mean: "the mamaich rom has microsoft bluetooth stack". I really hope we can get WM5 with the same stack I had on w2003. (Broadcom, I think). Maybe it is out there but I can't see it...
shuffle said:
WM5 on the BA is quite stable if you have the time to work with it. I am not going back.
Click to expand...
Click to collapse
I agree. By the moment, I'm very pleased with the performance of WM5 on my BA. It actually runs faster than w2003! And I'm beeing very objective, believe me!
I'm having a big annoyance with writting (sms, word, etc) as the spelling isn't allways what I wrote. On the SMS window, it seems the screen gets redrawn all the time and it loose some words...
The other big is not having A2DP. I think is very frustrating having such a nice machine without a good software that makes all its goodness work! :?
Some delayings on the screen repainting and (I'm using Pocket Informant) slow performance on the everyday tasks as opening the contacts list, or changing toanother program, for example...
shuffle said:
If somebody comes up with a BT fix for the stand-by problem that does not drain the battery, all of my issues will be fixed.
Click to expand...
Click to collapse
What do you mean? To have the BT on a low-power mode more or less?
cheers...

looking 4 answers: ad2p & bluetooth & wm5
somebody with an answer to this theme?
WAS: ad2p & bluetooth & wm5
It is somehow possible?
Anybody there? :roll:

Answer is no, not possible yet.
And to the poster above - yes, just need the bluetooth connect issue solved where it drops connection when it goes into stand-by mode. The fix that drains the battery by keeping the unit out of standby mode really isn't a fix for me.
Not that I am complaining - I'm happy to be an early adopter along for the ride..

shuffle said:
Answer is no, not possible yet.
And to the poster above - yes, just need the bluetooth connect issue solved where it drops connection when it goes into stand-by mode. The fix that drains the battery by keeping the unit out of standby mode really isn't a fix for me.
Not that I am complaining - I'm happy to be an early adopter along for the ride..
Click to expand...
Click to collapse
some URLs????
Thanks!

How do I enable A2DP on my BA??
Hello!!
I have searched the forum many many times and visited wiki, but I could only find 2 threads which is close to what I need to know. This is 1 of them.
I have got Blue Angel:
ROM: 1.40.00 WWE
Radio: 1.12.00
BT: 3900
This configuration came from the recently rom upgrade from o2.
It seems to me that it's possible to enable A2DP on a BA running on WM2003 SE, which allows me to stream music to a bt headphones??
However I just could not find a thread which has an instruction on how to do it. Not even on wiki. After reading some threads, I came to my own conclusion that I need to upgrade me BT to build 3900 and install a patch??
So this was what I did,
Since my BT is already 3900 "offical" version, thus I didn't do anything to it.
I d/l this file BA_OEM_AudioGW (1.33g.00).CAB (83KB) and ran it on my PPC. I then got the audiogw.dll in my windows folder.
That was all I did. It didn't work of course. I have another file, BroadcomCorp_BT1.0.0.3900.cab but didn't use it as I'm already on 3900??
So I was just hoping that someone who has done it and was successful, could point me in the right direction!!! Thanks a lot!!!

anyone tried running both cab loacted at
ftp://ftp.xda-developers.com/BlueAn...age BT 1.0.0.3900 and audiogw.dll - 1.33g.00/
if it works, do let me know. I currently do not have a bluetooth headphones to test with.

I have Omiz headset (with MP3 and radio FM) and due to work with my Magician I had to manually change some registry entries. Point was that my PDA was not correctly identified as a A2DP device (only HF). I paired my PDA with normal BT dongle with A2DP profile, found registry entries with dongle mac adress and copied manually keys coressponding with a2dp service to folder with my headphones profiles. After all that it was possible to chose headphopnes in BT menager as stereo audio receiver.
Maybe its similar and u should look in registry...

jarekt, can you post those registryvalues please?!

Can't get streaming audio to BT headphones
I still have had no luck with the BA_OEM_AudioGW (1.33g 00) Cab or any registry settings under WM5.

BT a2dp WM5
have you tried the file (.cab) i uploaded in BlueAngel under uploads, it let me pair BT Stereo under wm5. Nevermind I looked someone deleted it dont know why. PM me and i can send if you want, I tried to reupload but Uploads appears broken.

I am on thesame situation of errorist.
My machine is on Broadcom 3900, and I want to make A2DP work.
If anyone can shed a light on how to make it work, I'd be very very grateful.
BTW, I have a Motorola HT820.
UPDATE:
I have installed the 3900 stack + audiogw dll even though I had a factory-installed 3900 stack, and I managed to connect in handsfree mode.
I still have not found out how to connect in A2DP mode though...
Any help is appreciated.

Hi All
I dont know how useful this is going to be, but i spent ages doing research to get my ht820 and my 02 xda 2s working properly, and when i did, i wrote a semi bad guide here
http://www.corecodec.com/index.php?option=com_smf&Itemid=29&expv=0&topic=2840.0
if its any use i'd be tempted to maybe write it up proper and put in in the wiki, either way, try some of the steps or files ive listed (most of them are from here)
but it gets it working with TCPMP aswell, which is a lot better than WM10 anyhow
good luck

BTW: ivans rom uses the broadcom stack, so the patch may work, however i dont have the headphones to test it with

i've onstalled this two cabs too, but new profile didn't appeared. Bay Be some registry values didn't appied? who did this patch?

Hands-free set: pairs, but does not connect

I've posted this in [this thread] too, so my apologies for the double post. However, since many people seem to have the exact same problem I thought it deserves a thread of its own.
I have an MDA III (T-Mobile) and with the original ROM I was never able to use a BT hands-free set. The MDA III would pair with it but it was never able to connect (I would get a "Connection Failed" error). I've tried several hands-free sets all with the same result.
One day I tried the [BT Stack 1.0.0 build 3900] upgrade and that actually solved the problem. But, it caused my MDA III to switch on by itself occasionally and that was pretty annoying so I reverted back to the original stack. I actually tried build 3900 a few times to make absolutely sure it was this new BT stack that solved the problem. And it indeed was.
So I was pretty excited to find out T-Mobile had an [official upgrade] that included the 1.0.0.3900 BT stack. I have flashed my MDA III a few days ago and all went well. BT Manager displays it's build 3900, and my MDA III reports it's using the new ROM and radio.
But...
I still can't connect a hands-free set! I get the exact same error as before! I'm able to pair, but not to connect - which is weird because the "previous" build 3900 solved that problem for me while now it doesn't.
Does anyone know if there's a difference between the one I downloaded from here and the one supplied with the upgrade?

Nobody?