[Q] Bluetooth issues on JellyBean for DHD/Inspire4g - R25 - Desire HD Q&A, Help & Troubleshooting

I am having a problem with pairing bluetooth headsets on this JB install. already paired devices do not connect, and if I removed them and try to paired them again, It will prompt three times to enter the pin, and only then it connects. but once is disconnected I have to repeat the whole process. Any ideas? I would ask this in the specific thread, but it seems I am not allowed to post.

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bluetooth problem (?) after flashing

hi,
Ive flashed my rom to SwiftBL 4.0 and radio to 1.00.25.05.
There are two thing I would like to ask please;
#1 I get this message when I start the phone "dialed:
the answering modem has disconnected. to check your connection settings and change them if needed, tap settings [settings/dismiss]"
#2 bluetooth icon doesn't appear on the status bar. it receives and sends files but not visible.
how can i sort out these two problems please?
thanks
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[Q] CosmicCM-4.4.4 V5.2 stuck in headphone mode after using 3.5mm audio jack

Hello everyone,
Thanks for the CosmicCM-4.4.4 V5.2 it is awesome!!.
I am facing few issues
1. whenever i use headphones to listen music my phone sticks in headphone mode. however rebooting solves issue.
i have checked and found following thread http://forum.xda-developers.com/showthread.php?t=566730 saying it may be hardware issue so i flashed
stock ROM back using ODin and issue is gone.
2. both sim works fine. but i am not able to import/view contact stored in sim2.
3. missing a feature wifi hotspot for allowed device only [not a problem but love to have it].
Thanks..
Update:
Issue is caused only after i run sprint fm radio.
lg.urfriend said:
Hello everyone,
Thanks for the CosmicCM-4.4.4 V5.2 it is awesome!!.
I am facing few issues
1. whenever i use headphones to listen music my phone sticks in headphone mode. however rebooting solves issue.
i have checked and found following thread http://forum.xda-developers.com/showthread.php?t=566730 saying it may be hardware issue so i flashed
stock ROM back using ODin and issue is gone.
2. both sim works fine. but i am not able to import/view contact stored in sim2.
3. missing a feature wifi hotspot for allowed device only [not a problem but love to have it].
Thanks..
Update:
Issue is caused only after i run sprint fm radio.
Click to expand...
Click to collapse
2. SYNC all contacts to ur email a/c, then all are visible (short term solution)
3. not sure what u actually mean re: wifi hotspot...
to set up wifi hotspot
SETTINGS > MORE > TETHERING & PORTABLE HOTSPOTS > SET UP Wi-Fi HOTSPOT
missing a feature wifi hotspot for allowed device only
wifi for allowed device is a feature in which i can add some device to allowed list and configure wifi hotspot for allowed device only so that only allowed device in list can connect to wifi hotspot.
how it helps me!!
simple i don't have to type security key on other device.
e.g.
step1. start wifi hotspot in open mode and let other device scan and connect to it.
step2. add device to allowed list and change hotspot setting to allowed device (still it is open hotspot but other device will not be able to connect to it)
see attached image for more detail..
lg.urfriend said:
wifi for allowed device is a feature in which i can add some device to allowed list and configure wifi hotspot for allowed device only so that only allowed device in list can connect to wifi hotspot.
how it helps me!!
simple i don't have to type security key on other device.
e.g.
step1. start wifi hotspot in open mode and let other device scan and connect to it.
step2. add device to allowed list and change hotspot setting to allowed device (still it is open hotspot but other device will not be able to connect to it)
see attached image for more detail..
Click to expand...
Click to collapse
It's a proprietary feature of touchwiz.

ResurrectionRemix Bluetooth Connection Issue with Mercedes Benz COMMAND Navigation

Hi All,
Installed the latest ResurrectionRemix-M-v5.7.0-20160616-jfltetmo.zip on my S4 and cannot connect to Mercedes Benz navigation. Both system can see each other. No errors get displayed on the phone pairing devices. MB Command always displays an error "Access denied". There no differences if paring initiated from each devices.
Tried factory reset CM13 - same issue.
Tried factory reset and RR 5.7.0 after that - same issue.
Tried BlueDUN - couldn't see even any connection attempt.
Tried to connect to iPhone - iPhone reported an error - "Samsung Galaxy S4 not supported", no errors on S4.
Tried to connect to ASUS Android tablet - all worked, could send a file.
Thanks for suggestions.

[MTCD/E] [PX5] BT Search and connection issues with device name and pin

Recently some users including me are having issues with BT Connection, device search, setting device name and making changes persistent.
BT MODULES THAT IT WAS TEST ON:
SD-968 - [HA] [MCU MTCE 2.75] Firmware 20180201 and few earlier = WORKS
MD725 - [??] [MCU ???] Oreo Firmware = DO NOT WORK (According to feedback) LogCat needed to see if Firmware communicate with BT Module at all.
METHOD 1 (SHORTER):
1. Force Stop BT app
2. Clear DATA and CACHE for BT app
METHOD 2 (LONGER):
Here are the steps I've done to make it work.
1. Boot device (restart if it was not in deep sleep)
2. Directly go to system BT settings (drop notification and tap on BT)
3. Set Device name and PIN
4. Press refresh
5. Go to Home Screen (Home Button)
6. Open BT App -> Configuration
7. Name and PIN should be entered now
8. Disable/enable Auto Connect and exit app
9. reenter app and configuration to enable Auto connect
10. Make sure that all previous BT profiles for HU are deleted on phone and that phone is visible for all devices (usually when BT configuration is open device is visible)
11. Try to search for devices. It should fail (it failed for me)
12. Go to factory settings
13. Change BT Device even it is wrong one (I have SD-968 I changed to MD725)
14. Tap Apply -> Exit -> CANCEL on reboot prompt (without doing step 13 there will be no scheduled restart)
15. Reenter Factory settings and set correct BT Module (I have SET SD-968) Tap Apply -> Exit -> and Confirm REBOOT
16. After Reboot Go to BT App and try to search for phone it should be found (make sure it is visible like in step 10)
17. If all is OK you should see the phone and you should be able to use it normally (it worked for me)
Attached pictures of some steps for METHOD 2.
NOTE: I'm ATM at HA 6.0.1 Firmware from 20180201 and issue happened after upgrade. Also from what I see Users have same issue with and after Oreo update. Hope I helped
Thanks for the info. Have you tried this method also for oreo rom as well ?
A step that worked for me was to clear data and cache for bluetooth app..
julien_blanche said:
Thanks for the info. Have you tried this method also for oreo rom as well ?
Click to expand...
Click to collapse
Haven't updated to Oreo yet.
Phycopat said:
A step that worked for me was to clear data and cache for bluetooth app..
Click to expand...
Click to collapse
Good point it didn't worked for me but, it can also help. Added to main post.
You can trigger a reboot with "hctreboot" in factory settings. Does that work instead of doing steps 12-15?
I definitely have the BT issue. I have an Xtrons(GS) MTCD/E PX5 Oreo and an Xtrons brand OBDII. They won't talk or disconnect. I'll try this tomorrow morn and report back.
jdisco1 said:
You can trigger a reboot with "hctreboot" in factory settings. Does that work instead of doing steps 12-15?
I definitely have the BT issue. I have an Xtrons(GS) MTCD/E PX5 Oreo and an Xtrons brand OBDII. They won't talk or disconnect. I'll try this tomorrow morn and report back.
Click to expand...
Click to collapse
I have same GS MTCE 2.75 PX5 OREO but an old OBD2, give HU same password as OBD2 adapter..
jdisco1 said:
You can trigger a reboot with "hctreboot" in factory settings. Does that work instead of doing steps 12-15?
Click to expand...
Click to collapse
Point of 12-15 is that HU re init Module itself along with software. Not sure if it works that way on MTCD/E but usually it works on modular systems.
Tried with PX5 oreo installed with no luck. Both methods are not working for me.
PekeMM said:
Haven't updated to Oreo yet.
Click to expand...
Click to collapse
What???(I thought that this was a trick for oreo)
In my unit BT(MD725) works without any tricks for MM.
I tried your trick with 2 kinds of oreoROM(HA and GS) but BT did not work.
Thanks anyway
I'm sorry, but as I wrote I have SD-968 BT module not MD725. I'll update main thread with so far know to work devices.
Any news?
JonatanP said:
Any news?
Click to expand...
Click to collapse
Not that I know, I'll be back from Trip on Sunday, so I hope I'll finally finish the tests and upgrade to Oreo in April.
seems to be the same
The solution is to go back to android 6, the problem is that it is not as fluid in my case as android 8.
Hi, same problem here....
I can not use my ODB2 connector on my Android 8 radio either.
Is there an adapter that works?
Is there a trick to make it work?
Greetings and thank you!!
Hi..any update on how to get the bluetooth working on android 8..
Mtcd ksp px5
warata said:
What???(I thought that this was a trick for oreo)
In my unit BT(MD725) works without any tricks for MM.
I tried your trick with 2 kinds of oreoROM(HA and GS) but BT did not work.
Thanks anyway
Click to expand...
Click to collapse
if you still have android 8 installed, try going to factory setting and change the BT Device even it is wrong one (anything other then MD725) tap apply and exit and reboot.
after reboot change the BT device back to the original one (MD725) tap apply and exit and reboot.
after reboot go to the system BT and try to search if the phone name appears let me know.
i still didn't try the above method on android 8, but if anyone with MD725 module is still using android 8 please try and update us.
thanks
i was having problem with bt too...
here you can read my post https://forum.xda-developers.com/showpost.php?p=77525417&postcount=791
now i have Oreo Rom in a px5 board (32+4) with MD725 BT module working well
macoloco said:
i was having problem with bt too...
here you can read my post https://forum.xda-developers.com/showpost.php?p=77525417&postcount=791
now i have Oreo Rom in a px5 board (32+4) with MD725 BT module working well
Click to expand...
Click to collapse
Thanks, you said in that thread ".i have found a directory where all manufactures update.zip where listed
Go there , pickup last LM version" could you say where this directory is? Once there what do you do with that file?
bjt2 said:
Thanks, you said in that thread ".i have found a directory where all manufactures update.zip where listed
Go there , pickup last LM version" could you say where this directory is? Once there what do you do with that file?
Click to expand...
Click to collapse
i wrote all my procedure here
https://forum.xda-developers.com/showpost.php?p=77525417&postcount=791
and here
https://forum.xda-developers.com/showpost.php?p=77538182&postcount=796
Dasaita MMCNP - BT connection problem
Hi, I have Dasaita HA2106-V840-8 a problem with Bluetooth connectivity. First time I managed to connect my phone to Dasaita MMCP (car_kit), but after a few days the devices failed to connect. I guess my device has embedded SD968 BT chip, in accordance with the description.
When I enter the name of the device and new PIN in BT settings, and then turn on finding the device, they are not visible to each other. I tried this other day too, but when I turned MMCP, entered settings was gone (not memorized). No name, no PIN, but also there is no connection. Search doesn't have results. At the end I tried to unpair devices and pair them again, but I get a message on my phone "Unable to communicate with CAR_KIT".
When I entered in settings for BT (settings/car/factory setting/application-choose...) it was set to WQ_BC6. And then I tried to set up SD_BC6, reboot, search BT, nothing was found again. Then I returned to WQ_BC6, reboot, search BT, without success. In the end, I tried to set up SD968, but it's not worth it anyway, MMCP does not see a mobile phone. I also tried several phone models without success. I also went to the BT application and clear data and cache, but always the same thing - BT devices do not see each other. I'm not even sure BT is ON because it doesn't have a special slider to move On/Off.
What should I do? Please help me!

[PX5] MTCE Android 9 Bluetooth and volume issues

Hello all,
After finally updating my PX5 to the latest MCU and firmware (according to Hall9k) using his mod application, I am now experiencing low volume on everything (radio on max is pretty low volume when you're on the highway) and bluetooth settings always reset to empty settings and will not find my phone and my phone will not find the PX5.
I've tried resetting wifi and bluetooth settings, no luck. I've tried resetting the unit back to factory settings, erasing all data, no luck. I found a post regarding the bt issue and followed all his steps (changing the bt device and reverting back to it, etc.) but no luck. I found a post which said the device somehow needed to be an other one than previously set, so I've tried all the devices in the list, but no luck. Only at the parrot device, the bt settings were automatically reverted back to factory default (Car... something), but it wouldn't connect. Normally my device was on SD-968 I believe (not currently in my car).
So, that's my main issue now. How can I get BT to connect, without rolling back to Android 6.0.1? Because on 6 it worked.
And second, how can I get the volume louder? Again, after updating the volume somehow seems limited.
I don't want to go back to 6, if there's an other way, because 6 had its own problems...
I'm really lost here and have spend many hours in the car, trying everything I could find online (even manually clearing cash and storage of the bt settings, etc). There must be a way this should be fixed.
My Android 9 fw is from November (Hal9k send that one to me)
My MCU is MTCE_GS_V3.17bd_3

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