Database Develop

Multiple bluetooth connections?

I wonder if anybody knows if it is possible to have two (or more) divices connected at onceon a Blue Angel?
eg. Tom Tom 6 plus a hands free connection.
I have tried every configuration I can think of, different ports ect, but to now avail.
With the gps connection up and running, as soon as you turn on the hands free , the gps connection link is lost, turn off hands free and it will resume connection.
I am using BA WM5 AKU3.5 R4 - xplode's excellent rom
In GPS settings
Program is using COM 5
Hardware is using COM 0
Manage GPS settings set to Auto
In Device settings,
BTGPS unit is on COM 0 (Serial box ticked)
Hands free is unassigned
Any help will be much appreciated.

any idea's anyone?

On Last Baniaczek's ROM I made an experiment just a moment ago: BlueAngel, Navigation system (Polish one, Automapa), plus GPS on Bluetooth and A2DP headset - first connected headphones, then added GPS (using automatic GPS connection - it's M$ Stack) - Everything seems to be working fine. I thought it was a bit unstable at first, but AD2P stops sending data, when there is no sound from the device.
GPS Settings are default: COM6 for applications and GPS has COM7 assigned on Hardware tab and in Bluetooth outgoing port. Quite seamless.
then I made the 2nd one: same headset connected in Handsfree mode: indeed turning on navigation made it connect and disconnect every few seconds.
For me it seems to be fault of M$ BT stack: it cannot hold 2 similar streams on BT (COM and Handsfree/Headset are both typical serial connections of highest priority in BT stream). At the same time it can cope easily with two different streams (A2DP is lower priority, high-bandwidth BT connection).
I'm not sure, but I think when I used old Helmi 1.3.2 with Widcomm stack it could cope with GPS and Handsfree at the same time, but it needs more testing.

jakubd is right it is limitation in MS BT Stack

Don't give up and it should start to work. I have similar problem with BT GPS and BT headset. GPS goes on and off while headset is on. And than I try to switch headset off and on, BT off and on, GPS off and on and after some time it start to work together with no problem. It takes first 10-15 minutes of my voyage but then it works for the remaining few hours.
Sorry, but I still didn't find out what combination make it work. If I do, I will post it here as workaround.
And I'm almost sure that I had no such problem with Helmi 1.4 ROM.

Thanks guys,
have tried every configuration I can think of, but its always the GPS connection that is dropped, not the hands free, this would not be a problem if it was just when you are answering a call.The GPS reconnects only when you disconnect the hands free connection. ?
Has anyone Successfully used the Widcomm stack with this type of setup?
I am sure alot of members would find this usefull if it can be made to work!

This is my experience:
ROM : Helmi_BA_WM2k5_AKU3.5_v1.4.CF2.R2 (baniaczek)
Tom Tom 6
GPS : Bluetooth
Headset : Nokia BH-300
When the headset is on and connected, the GPS doesn't work (TT say no GPS found). When I turn off the headset, the GPS is working.
With ActiveSync I have the same problem: when the headset is turned on, I can't establish a connection with the PC via bluetooth.
BUT!
If I use a different headset, a Logitech HS03, all is working fine. I can leave the headset on and the GPS is working. I can receive incoming calls with no problem (using the headset) while I'm driving without loosing GPS signal.
With ActiveSync is the same: I can connect my PC with the headset on.
I have no idea why there is this difference with these two headsets, but one is working and the other no. I don't know if the problem is the MS BT stack, but my test demonstrates that under some circumstances this stack could manage more than one connection at time.

bigmike said:
I don't know if the problem is the MS BT stack, but my test demonstrates that under some circumstances this stack could manage more than one connection at time.
Click to expand...
Click to collapse
Bigmike, my point exactly. As I wrote in my post I keep turning on and off until finally it works. So there are some circumstances under coexistence is possible.
It seems that devices try to use same port which means that first device does not reserve port for itself. I am not an expert but it seems if we could somehow force devices to use different ports problem would be gone.

bigmike said:
If I use a different headset, a Logitech HS03, all is working fine. I can leave the headset on and the GPS is working. I can receive incoming calls with no problem (using the headset) while I'm driving without loosing GPS signal.
Click to expand...
Click to collapse
If this works with one set and doesn't work with another, it might be connected to list of profiles supported by the headset:
1. Headset - HSP - more common, typical profile for use with cell phones (supports AT commands)
2. Handsfree - HFP - audio-centric, used mostly in cars, less common
http://en.wikipedia.org/wiki/Bluetooth_profile
My SonyEricsson HBH-600 has both profiles (checked with services list on SonyEricsson phone), but I don't know how to select which profile is used by headset.
Just a thought...

sassa said:
Bigmike, my point exactly. As I wrote in my post I keep turning on and off until finally it works. So there are some circumstances under coexistence is possible.
Click to expand...
Click to collapse
I hope you haven't misunderstand my previous post. I haven't in mind to minimize the value of your post (very useful is someone will try to investigate about this problem).
I was thinking that somebody, reading your contribute, could wrongly think: “you're are a lucky guy and turning on-off the headset repeatedly you crash some library and the two devices are working together”.
My intention was to remark the fact that under some circumstances the headset and the gps can connect together every time and always at first try: it's not lucky, crash or random events.
jakubd said:
If this works with one set and doesn't work with another, it might be connected to list of profiles supported by the headset
Click to expand...
Click to collapse
I have a similar thought.
It seems to me that some times ago I have read that it should be possible to change some profile's parameters “playing” with the registry.... but I could be wrong...

bigmike said:
I hope you haven't misunderstand my previous post. I haven't in mind to minimize the value of your post (very useful is someone will try to investigate about this problem).
Click to expand...
Click to collapse
No I have not, bigmike, just the opposite. I was delighted that somebody confirmed my point.
bigmike said:
My intention was to remark the fact that under some circumstances the headset and the gps can connect together every time and always at first try: it's not lucky, crash or random events.
Click to expand...
Click to collapse
Couldn't agree more. And I think it's worth trying to resolve it.

Multiple BT connections - solution?
I think I find a solution for this, or maybe we can call it workaround. At least it works for me.
As I wrote in my previous posts, I could make it work every time just didn't know how. Now I established repetable procedure which worked every time for reasonable number of experiments.
Secret was to turn on BT headset (in my case Plantronics) and BT GPS device (Haicom 406-BT) and GPS program (iGo) first, and then go to Comm Manager and turn bluetooth on.
So my procedure is:
1. make sure that BT is off in Comm Manager
2. turn on BT headset
3. turn on GPS device
4. open iGo program
5. minimize iGo
6. turn on BT in Comm manager
7. open iGo and make sure it's connected
8. go to phone and call myself just to make sure it works
9. back to iGO and make sure it works
If 8 or 9 fails for the first time, just turn BT off and on again in Comm manager and check it again. I never need to do this more than twice.
Try this, guys, and good luck.
P.S. I don't know if it matters, but make sure that in Settings/Connections/GPS "GPS program port" and "GPS hardware port" is set to (None) and "Manage GPS automatically" unticked.

Very good! Many thanks Sassa!
I have tried for two times your procedure and both tries worked very well (with TomTom6 and Nokia BH-300)
I use a slightly different procedure:
1. BT off in Comm Manager
2. turn on BT headset
3. turn on GPS device
4. turn on BT in Comm manager
5. open TomTom 6 (wait some seconds and make sure it's connected)
6. go to phone and call myself (on the first call the headset is disconnected)
7. back to TomTom and make sure it works
I have noticed a different behavior of the BT headset having the BT always on (in Comm Manager) and using this procedure... but I need to make some tests before writing more.

Error: Problem with bluetooth hardware

I'm trying to connect my phone (ATT HTC Tilt) with a stereo bluetooth headset or trying to send files and everytime I scan for new devices it gives me an error stating "PROBLEM WITH BLUETOOTH HARDWARE"
Additionally, the "Turn on Bluetooth" option always turns off automatically....
What is going on? Can anyone help?

Please...
Anyone who experienced this or can give me a hand? Thanks!!

I had this same problem all of a a sudden on my Kaiser. But after doing a hard reset this got resolved.
And now i just flashed Dutty's 6.1 ROM. Its amazing update..
Cheers

Thanks Arun...
Tried the hard reset NO LUCK! Problem persists, and bluetooth keeps turning off. I go back to the wireless manager and check both boxes and they come back off in 30 seconds!!
When searching for devices it says (ERROR: PROBLEM WITH BLUETOOTH HARDWARE)
Not able to beam or receive files at all.
Any help? Thanks so much!!

Same Problem
Running into same problem here. I haven't even updated the ROM from stock yet, although I have done the JumpSPL step (cuz I received the white screen). My Radio is 1.27.14.09.
Any help is appreciated.

I would think that if you have done a hard reset and you don't install anything and you still have a problem then you **** is borked. time to do a warranty exchange.
has your bluetooth ever worked, with the rom that is currently on your phone?

Problem with Bluetooth Hardware!!!!
I am having the same problem. I have the stock AT&T ROM. Here is exactly what is happening:
The bluetooth is not working on my Tilt at all. It has lost connections with devices that it was already paired with (a Motorola Q Global and a headset). All attemps to pair the devices again lead to the following: "Error: Problem with Bluetooth Hardware".
When I go to Bluetooth Settings through the Comm Manager, then Mode and check "Turn on Bluetooth" and "Make this device visible to other devices", it unchecks as soon as I exit the settings menu. The Comm Manager constantly shows the bluetooth being off and when I tap the icon, the phone "thinks" for awhile and then it greys out again.
The only change that I have made from the time that it was working is to install the iphone package, and a today plugin (which I have since uninstalled) found here.
I recently changed my Kaiser Tweak bluetooth settings: I changed the BitPool from 'medium' to 'very high', but my headset was still working after that. The other settings are:
Sample Rate - 48000 (Advised)
Use Joint Stereo - Enabled (Default)
Receive Files - Enabled
Any ideas/suggestions?

Forced to do a hard reset
kcrumbley said:
I am having the same problem. I have the stock AT&T ROM. Here is exactly what is happening:
The bluetooth is not working on my Tilt at all. It has lost connections with devices that it was already paired with (a Motorola Q Global and a headset). All attemps to pair the devices again lead to the following: "Error: Problem with Bluetooth Hardware".
When I go to Bluetooth Settings through the Comm Manager, then Mode and check "Turn on Bluetooth" and "Make this device visible to other devices", it unchecks as soon as I exit the settings menu. The Comm Manager constantly shows the bluetooth being off and when I tap the icon, the phone "thinks" for awhile and then it greys out again.
The only change that I have made from the time that it was working is to install the iphone package, and a today plugin (which I have since uninstalled) found here.
I recently changed my Kaiser Tweak bluetooth settings: I changed the BitPool from 'medium' to 'very high', but my headset was still working after that. The other settings are:
Sample Rate - 48000 (Advised)
Use Joint Stereo - Enabled (Default)
Receive Files - Enabled
Any ideas/suggestions?
Click to expand...
Click to collapse
They only way to fix the problem was for me to do a hard reset.

P7 - Wifi gets connected but no connectivity when Bluetooth is ON

Do you guys have this problem with Wifi + BT activated?
I go on WIFI and all is fine
I go BT+3g/4g and all is fine
Since i got a smartband, as BT is 24/7, wifi is not working properly.
Been reading about this issue, its kind of generic due to band frequencies.
I have noticed that if BT + WLAN are ON the issue is not really there, it is when the smartband-app is installed.
The app has permissions on WLAN + BT, if i remove those permisions, the issue is semi-solved, but then no notifications are working 100% and Wifi fails from time to time.
Its like when BT syncs it may swith on/off the wlan so the wlan gets >.<
Any Solution/Workaround out of tasker to deactivate BT if WIFI or viceversa .... ?
I tried too changing the Wifi channel in the router from channel 11 to channel 1 (so they are far away) but nothing.
Thanks

Bluetooth dropouts when using stereo speakers

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.

XZ1C Bluetooth Dropping.

Bluetooth is dropping within a few minutes every time with this phone which is running the most up-to-date software. I feel like I have tried everything under the sun to fix this including, but not limited to:
Network Reset
Software Repair
Developer Mode Settings
Has ANYONE experienced or managed to fix this issue for themselves?

When I listen to Spotify via bluettoh headphones, sometimes the sounds starts cracking a lot (due to bluetooth interfierence). This happens when wifi is connected to 2.5ghz router + there is a lot of data being downloaded. Most cases restart helps, as after restart wifi data download decreases a lot. If that does not help (may be just few times restart did not help), than I switch off wifi and use celular data. After that bluetooth headphones work well.
PS I am on latest Oreo. Did not update to Pie as call recording does not work anymore without root.

Thanks for your reply Martynas. I have indeed tried using BT with wifi disabled, but it is the same result.
I would actually really like to try downgrading to Oreo to see if that fixes things, but I am new to Android and so I don't exactly know what I am looking for in my hunt for a US image that will work with T Mobile.
Any advice? Thanks for your time.

One more option would be to try different bluettoth settings under "developer" options. Try using different protocols. Mine all are on auto, but try to use manual settings... lower versions, lower bit rate and hz.
As to downgrade to oreo, there was somebody in the forum who has done it and was thinking to make step by step manual... check with him for help.
PS one more possibility - the headphones are broke or simply not very compatible (if it is just earphones you have problems with)...

Takes 2 devices to make a bluetooth connection. Could be your other device. This phone is running bluetooth 5 which is very good. For HD audio you will need very close or line of sight to get constant audio.

martynas said:
One more option would be to try different bluettoth settings under "developer" options. Try using different protocols. Mine all are on auto, but try to use manual settings... lower versions, lower bit rate and hz.
As to downgrade to oreo, there was somebody in the forum who has done it and was thinking to make step by step manual... check with him for help.
PS one more possibility - the headphones are broke or simply not very compatible (if it is just earphones you have problems with)...
Click to expand...
Click to collapse
I have tried all of the developer settings to no avail. The headphones are not broken and indeed are compatible. The XZ1C just simply doesn't hold a connection with any BT audio device whatsoever.
Dean F said:
Takes 2 devices to make a bluetooth connection. Could be your other device. This phone is running bluetooth 5 which is very good. For HD audio you will need very close or line of sight to get constant audio.
Click to expand...
Click to collapse
Unfortunately it's not the headphones--I have tried with multiple devices.