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Take a look at the \Windows\Init_Rom_V316.bts file. It clearly states in the changelog comments:
- Decreased output power by 2db for added RF robustness for compliance with the 4db output limit throughout all conditions.
This cuts the output of the Bluetooth Radio by 2/3's, roughly!
This is called every time Bluetooth is turned on. Under: HKLM\software\widcomm\BRConfig\General\RadioPostLoadScript
Anyone have an older version of this .bts file that has the higher output? Of any of you reverse engineers able increase the Bluetooth radio power?
PS. For those of you using the 3900 Bluetooth patch, take a look at the RadioWLANCoexEnable/Disable keys in HKLM\software\widcomm\BRConfig\General They are calling a .bts script that I have never had on my machine, I removed the path to the .bts script and the Bluetooth Radio Memory load errors decreased dramatically, as did the time it takes to turn the Bluetooth off and on. The keys are blank by default and only populated when you install the 3900 patch, apparently the patch is missing some files.
Hope someone finds this info useful.
Hope we can find that
it is a good analysis step frpm you if you we find this file it will be greate.
What will happen
what will happen if we removed this entry from or make it blank.
HI,
i have the file called in the registry on my machine. Perhaps it helps to analyze. There are two files existing. One enables and one disbles a function it seems.
It seems that the attachment upload did not work
BroadCom BlueTooth Stack 1.6
Do anybody use Broadcom Bluetooth Stack 1.6 it has a very obvious performance change but when i use this bluetooth stack i hear a continuous beeb every 3 sec. and also it has the same registry entries as 1.0.3900
Re: BroadCom BlueTooth Stack 1.6
here i've attached all BTS files for BRF6100 chip I've found in ROMs of different devices. I've compressed them because forum does not allow BTS attachments.
Init_Rom_V316.bts - original file from 1.40 ROM. "Version : P4.12"
Init_Rom_V316_from_old_rom.bts - from one of the first PDA2K ROMs, "Version : P2.12"
BT_Init_with_Coex_v1.0.bts - HP h6300 ROM, "Version : P4.12"
BT_Init_without_Coex_v1.0.bts - HP h6300 ROM, "Version : P4.12"
TIInit_2.3.16.bts - MPX300 ROM, "Major Version : P4.13c"
all of these files except for TIInit_2.3.16.bts contain "Decreased output power" string. Someone can try all these files to check the best BT quality.
To use it - rename file to Init_Rom_V316.bts and copy to "\Windows" dir.
But I think the scritps from other devices would not work on ours.
Re: BroadCom BlueTooth Stack 1.6
here is one more file
With this file ActiveSync connects a bit quicker than with default file. I don't have BT headset here to check sound quality.
Re: BroadCom BlueTooth Stack 1.6
mamaich said:
here is one more file
With this file ActiveSync connects a bit quicker than with default file. I don't have BT headset here to check sound quality.
Click to expand...
Click to collapse
I try this file... Makes no different in BT Headset. Range and sound quaility is about the same.
Wow, I don't want to get too excited, but I think we may have a winner.
I used the TIInit_2.3.16.bts file in place of the Init_Rom_V316.bts from my 1.40.00 System, and I have noticed a large decrease in static. It is still there, mostly in the background, very low. Range seems much better too. I'll have to do more testing, but my initial tests were done in a location where I usually have a TON of static. I also held the phone the opposite side of my head, and still not much static. If my testing reveals better overall performance, I'll kit this up into a CAB.
Excellent work everyone!!!
-Chris
DAMN DAMN DAMN DAMN!!!
Ok, second round of testing is a complete failure. While the initial testing that BTS file looked great, everything fell apart in an actualy call. The sound quality is totally inaudiable...
I feel that we are so close....
-Chris
Do these stacks have the A2DP profile? I can't seem to get A2DP and Headset working nicely together.
wamatt said:
Do these stacks have the A2DP profile? I can't seem to get A2DP and Headset working nicely together.
Click to expand...
Click to collapse
Maybe it depends on your headset. I just got the Zonet ZUB8100 and I can connect to it using Hands-Free & A2DP profiles simultaneously. It works pretty well in A2DP mode for listening to MP3s, not so well as a phone headset. Haven't tried using it to answer a phone call while listening to a MP3 -- I'll probably try that over the weekend.
I'm running a SX66 with radio ROM 1.12, BT stack 3900, but not with the BTS fix mentioned upthread.
i found the answer
sell the xda2s and buy a palm treo 650 - what a great device, should have done it months ago
it is so reliable and crash free
Hi all, I have had this bug in varying flavours with both the Wizard and now the Kaiser.
If I make a call via Bluetooth (certain devices only e.g. JVC in car stereo), after the call, all audio is lost on the device when using the speaker, e.g. no ringtones, no TomTom voice guidance. (Oddly the touchtone sounds on the phone dialler continue to work.)
Making another call via Bluetooth works fine and all audio is heard, but not if calling via the earpiece of the phone - all phone audio is still muted. A reboot is required. (Even after a reboot, sometimes all audio is muted, and 2 or 3 reboots are required.)
It is like Bluetooth is 'stealing' the audio from the phone's speaker (which is should), but not giving it back at the end, however turning off Bluetooth doesn't return it.
It happens with WM6.x on the TyTN II.
If you can fix it either via a workaround (reboot the audio service after every call?) or a direct fix (HTC are useless and have not emailed me back), I will pledge you $100 via PayPal. I am sure others will join me in pledging an amount also.
Yes. I've seen the same thing with the last stock Tilt ROM, too.
Same here. But is not happening very often.
The other issue for me is if I have A2DP enable and listening to music, then making a phone call will drop the A2DP connection and I have to reconnect A2DP again. It happens to both my JVC car unit and Sony HBH DS220.
I tried that w/ Dutty's WM6.0 and the latest 6.1 rom
I have the same issue, with bluetooth disconnects.
Just staying on-topic here (you can solve A2DP issues with A2DPToggle a great free app), has anyone found a solution to this Bluetooth loss of speaker audio issue, or a workaround to avoid it happening?
Rebooting the phone after every Bluetooth phone call is hardly what I consider a high-end smartphone to require.
Same here
What Radio's are you guys running? (Ignore my signature for the moment, been phoneless and away from here for a while and just getting back up to date )
Haz
My current radio is 1.64.08.21.
I have also tried 1.64.06.04.
Could we be closer to finding the problem? Does the Radio contain the Bluetooth stack?
Here are all available Radios:
http://wiki.xda-developers.com/index.php?pagename=Kaiser_Radio
I'm going to try 1.58.26.20 now. I suggest others try the other 1.5x variants and report back if any of them solve the bug.
Update: I am now offering $100 to anyone who can fix this - see 1st thread.
I have used Windows Mobile since the first ever SPV phone. This one issue is making me look seriously at abandoning that loyalty and getting a Blackberry. If I can fix this for $100 I could be tempted to stay however.
Have you tried BT Audio Toggle ? (found at http://pdaphonehome.com/forums/sams...luetooth-headset.html?perpage=20&pagenumber=1)
Maybe if this helps with your problem then a mortscript could be written to automatically run the utility after a phone call.
What bluetooth headset do you have? Have you tried other headsets or just the one you have? What version of 6.1 are you using?
Thanks, I'll give the audio toggle a go. Might need some help with Mortscript though
I am using the JVC KD-BT1 car stereo with Bluetooth in-car kit. However I can also lose audio on a clean boot even when not in the car, although that is very rare. When using it with the car stereo, it happens after almost every call.
I am running Sleuth's WM6.1 but the other people in this thread are using a variety of BT devices, ROMs, and HTC models.
Can anyone help with how to create a MortScript to run BTAudioOff.exe after each phone call?
Flash a NIKI radio. I had a similar issue with my JVC in-dash CD player and I just got all the radios and tried them all. All the NIKI radios seem to work a lot of the time, while some work and others don't.
Kraize92 said:
Flash a NIKI radio. I had a similar issue with my JVC in-dash CD player and I just got all the radios and tried them all. All the NIKI radios seem to work a lot of the time, while some work and others don't.
Click to expand...
Click to collapse
Thanks, I'll try that too.
Rumball said:
Have you tried BT Audio Toggle ? (found at http://pdaphonehome.com/forums/sams...luetooth-headset.html?perpage=20&pagenumber=1)
Maybe if this helps with your problem then a mortscript could be written to automatically run the utility after a phone call.
Click to expand...
Click to collapse
Okay I tried this and before I even got in the car, chose to turn Bluetooth Audio off using the toggle. Since then I cannot recreate the issue! I am not having to toggle after every call, I only did it once and the problem won't come back!
Fingers crossed...
NP. 1 more thing. What do you mean all audio is lost? Do you mean that the auido goes through the bt device? Or just that there is no audio coming from either at all. If that's the case, then all you might have to do is go to Comm Manager>Settings>Bluetooth>JVC (or whatever you named it) and uncheck the Stereo sound and viola it should work unless you are not using A2DP >.> . I think it's either directing all sound to your bt device or trying to send sound to it but failing.
Kraize92 said:
NP. 1 more thing. What do you mean all audio is lost? Do you mean that the auido goes through the bt device? Or just that there is no audio coming from either at all. If that's the case, then all you might have to do is go to Comm Manager>Settings>Bluetooth>JVC (or whatever you named it) and uncheck the Stereo sound and viola it should work unless you are not using A2DP >.> . I think it's either directing all sound to your bt device or trying to send sound to it but failing.
Click to expand...
Click to collapse
The issue is there is no audio coming from either the phone or the Bluetooth device. I hear the Bluetooth device disconnect, and its display shows that it has also.
I see no 'Stereo' option to untick for the JVC in its Bluetooth settings, only Hands-free and Wireless Stereo (already unticked).
No progress
Okay, this is seriously getting me down now It all sounded so promising. I have tried the following:
Flashed Niki Radio 1.58.21.23
Tried using Bluetooth Toggle - it seemed to work once when I turned BT off before connecting, but after a reboot the problem is back
Tried a HFP extension PM'd to me (thanks anyway - didn't help)
Made sure Bluetooth Stereo is unticked in the JVC's settings on the phone
I am not sure if the problem is worse when taking a call as TomTom is running.
Here is an interesting development which might help someone narrow down the cause:
I make a few calls, and as always audio is lost, even for phone calls sometimes.
Touchtones on the keypad are the only sound that the phone continues to emit itself. Everything else (TomTom, ringtones, etc.) is dead.
I then go into the JVC's A2DP mode and 'Connect'. The icon appears on the mobile's title bar, and I can hear phone audio through the car stereo.
I 'Disconnect' and the phone's audio is still lost.
What this tells us is that the phone is putting out sound, just not through the speaker.
If someone can write something that will reset the speaker driver after a call, my offer for $100 still stands.
Just to update this, the issue still exists with a clean install of HTC's new 2-May-08 WM6.1 ROM from their website. To***rs!
CJSnet,
Since we got the similar setup w/ exact the same issue (Att Tilt w/ JVC BT-1), I think the problem is basically Kaiser does not switch back to A2DP profile properly after headset profile from phone call. The same issue happens to my Sony HBH DS-220 stereo headset too.
I tried my Eten M600 w/ JVC BT-1 and does not see this problem
If i'm pairing the tablet to a bluetooth headset everytime i make a phone call it sound like i'm in a storm. There alot of background noises and i cant hear anything.
If i switch to the speaker the sound is fine.
I tried 3 different headsets, 3 roms (stock, remix and now mirek) - still the same problem.
I noticed i the big thread of the x98 that someone with a model like me (C5J6) report about the same problem so i guess it's the model problem.
Anyone can help ?
UrielZ said:
If i'm pairing the tablet to a bluetooth headset everytime i make a phone call it sound like i'm in a storm. There alot of background noises and i cant hear anything.
If i switch to the speaker the sound is fine.
I tried 3 different headsets, 3 roms (stock, remix and now mirek) - still the same problem.
I noticed i the big thread of the x98 that someone with a model like me (C5J6) report about the same problem so i guess it's the model problem.
Anyone can help ?
Click to expand...
Click to collapse
I have the same model and issue , all I'm trying to do is listen to music via some bluetooth headphones
I have the same issue on my c5j6. It appears to be only on the telephone audio profile, the media profile works fine.
Same issue. c5j8. Does anybody have any idea how to fix it?
This is a long shot.
I have a pair of Bluetooth 4.1 Minirig speakers that can be set in stereo mode. However when in stereo mode one channel experiences dropouts. Running in mono mode is fine.
The issue is with the Nokia 7+'s Bluetooth transmission as when using other Bluetooth enabled devices to power the speakers the issue does not occur.
Anyone else had this issue when connecting stereo speakers or headphones and know of a solution?
I have checked: System > Developer Options > Bluetooth Audio Codecs and tried changing these setting but the changes did not "stick" and problem remained.
Maybe there is an alternative setting somewhere that can be tweaked.
Thanks in advance.
doowoppa65 said:
I have checked: System > Developer Options > Bluetooth Audio Codecs and tried changing these setting but the changes did not "stick" and problem remained.
.
Click to expand...
Click to collapse
I'm also having this issue: whenever I'm connecting my N7+ onto the car's audio system via Bluetooth I have to change the codecs to the correct one every single time to make it properly work (have sound/audio at all). The settings also don't stick or are not being saved. Also looking for a solution for this, unless an update miraculously fixes it.
Same problem here when connected to my car by bluetooth. Occasionally there is a dropout. This does not happen when my friends connect with their phones (oneplus 5, samsung, allview. or my old lg g4).
Changing the bluetooth audio codecs does not work as it does not remain selected and it switches to default. This, as i understood, happens on android 8 and has been resolved in the Pie beta and should be ok in the final Pie release.
When I raised the issue with the superbly talented nokia tech support they either act surprised as if its an unique issue to you or send you a list of compatible bluetooth protocols. Are we expected to change our cars and speakers to make the phone work?
I had this issue after installing garmin connect. Theres a thread over in the garmin forums (forums.garmin.com/forum/into-sports/garmin-connect-mobile-application/garmin-connect-mobile-android/1375800-audio-streaming-issues) about it. Also on the nokia forums (community.phones.nokia.com/support/discussions/topics/7000022239/). Seems to affect some phones on 8.1
Anyway, I'm on Pie beta now and the problem has gone away.
My Xperia XZ1 Compact has a strange problem: Both of my BT devices (Jabra Evolve 65, Denon Envaya Mini) work well with my phone if I answer phone calls. But playing audio files does not work. I tried two audio players (Mort Player and the lineageos music app) and played a MP3 file from Youtube. On another phone both devices play music perfectly. So it is obvious that my devices are not the problem. It is definitively the phone.
In the bluetooth settings of both devices, media is on. I also tried to deactivate phone call in the settings but it did not help.
I tried to change the protocol version to 1.4, I deleted the bluetooth cache and resetted the bluetooth settings.
Please have a look at my Logcat attached. What I basically did while it ran is: Click the volume button, select the bluetooth symbol and changed from one device to the other.
I can't tell you which firmware I have. I did not find any information about it.
It seems like in 18.1 this has been fixed. But is there a quick way fixing the problem without upgrading to 18.1/2.0? Perhaps by changing a few values somewhere?