Develop Bugs

[Q] How can I block a specific bluetooth device from connecting to Note II

I'm trying to find a way to block my phone from recognizing my car's built in bluetooth. It keeps popping up with a message to reconnect, so my other bluetooth device blanks out for a second repeatedly. I guess this is more of a generic android question since it could apply to any android phone, but since this is the phone I have, I figured I'd post here. Thanks for any advice.

aRandomPiece said:
I'm trying to find a way to block my phone from recognizing my car's built in bluetooth. It keeps popping up with a message to reconnect, so my other bluetooth device blanks out for a second repeatedly. I guess this is more of a generic android question since it could apply to any android phone, but since this is the phone I have, I figured I'd post here. Thanks for any advice.
Click to expand...
Click to collapse
On my device, my bluetooth settings are such that the phone is only visible to paired devices. I don't know how much that will apply to you as I am not running the stock ROM, but rather the W03 Slim ROM.
I'm guessing that turning the car's bluetooth off is not an option?
Cheers!

gorfchris said:
On my device, my bluetooth settings are such that the phone is only visible to paired devices. I don't know how much that will apply to you as I am not running the stock ROM, but rather the W03 Slim ROM.
I'm guessing that turning the car's bluetooth off is not an option?
Cheers!
Click to expand...
Click to collapse
I haven't found a way to turn off the car's bluetooth. That was my first thought. I've tried a few roms and they have all had the same problem. I'll try that one out and see how it works.
Thanks!

aRandomPiece said:
I haven't found a way to turn off the car's bluetooth. That was my first thought. I've tried a few roms and they have all had the same problem. I'll try that one out and see how it works.
Thanks!
Click to expand...
Click to collapse
Thinking some more about it, if the car's bluetooth is trying to reconnect does that mean it has already been paired? If so, I don't know that my ROM would help. Also I'm curious as to what happens if you do let the car reconnect to your phone; I would think you should be able to select which bluetooth device gets the phone and make that the default.
Really just wondering out loud, I unfortunately cannot try any of those myself.
I hope this helps a little...
Cheers!

Let the car pair and connect so you know you have the connection. Then select keep device hidden option. Then delete the car paring.

Bluetooth Media Remote

I am trying to use a bluetooth Media Remote. When I search for bluetooth devices the device will appear and when I select it asks if I want to connect. However when I click yes it does not actually connect. I have tried to run XMTC and changed the name from ODB to the name of the device. This changes the icon of the device on the unit however it still does not connect. This appears to be OS\driver issue not a hardware issue since the device is being found.
I have tried two different bluetooth remotes with the same results(from amazon)
Satechi® Bluetooth Button Series (Media Button)
iSimple Portable Wireless Remote Control
I can however connect these to my phone and change the volume on the phone while I am streaming music to the head unit. And this is nice, but I would really like to be able to control the head units volume instead.
Does someone have a custom ROM that could fix my issue?

Edit - was able to resolve my issue. Used xposed framework and bt module to remove the name limitation.

Zeneffect said:
Edit - was able to resolve my issue. Used xposed framework and bt module to remove the name limitation.
Click to expand...
Click to collapse
I am glad you were able to resolve your issue. Hoping someone smarter than me can fix mine
Anyone have any ideas how to get other bluetooth devices to work with this system? I expect someone that can build a custom ROM could fix this.

Zeneffect said:
Edit - was able to resolve my issue. Used xposed framework and bt module to remove the name limitation.
Click to expand...
Click to collapse
Cool. What BT module did you use?

Zeneffect said:
Edit - was able to resolve my issue. Used xposed framework and bt module to remove the name limitation.
Click to expand...
Click to collapse
Did anyone ever find out which xposed module this is?

Hey there, I've got the Satechi® Bluetooth Button Series (Media Button) thing too, and surprise surprise, it won't talk to my Pumpkin HU (rk3066, android 4.4.1, mcu KLD2).
I've rooted the stock using the #hct#root# trick and installed SuperSU. I would love to get the button working!
I've got my head unit installed in my right-hand drive car (am in UK) - and where it's mounted, it is just out of reach unless I lean forward - so I can't really use it without looking, apart from using the tiny buttons down the side.
Happy to try the xposed framework but like OP I don't know which modules to use to get a USB BT dongle working. Any help greatly appreciated!

I definitely may be wrong but I assumed he was referring to the Xposedmtc module (http://forum.xda-developers.com/showpost.php?p=54334741) in the OBD settings where you specify the string. Though I assumed this only worked for OBD devices. I tried using it to pair an iRadar device with mine but was unsuccessful.

Oh, poop. Thanks all the same. Will keep an eye on this thread and report back if I ever get anywhere! Could it be that these HU's are only Bluetooth 2.0 compatible? Every device I've seen seems to be 3.0...

Hmmm. I'm thinking of getting a cheap wired USB numberpad (they're like £3) and using it with a keyboard mapper like this one:
https://play.google.com/store/apps/details?id=com.apedroid.hwkeyboardhelper
and this list:
http://developer.android.com/reference/android/view/KeyEvent.html
Oh and this is as much a note to self as anything!
http://www.barbatricks.com/en/android-en/remap-ab-shutter-3-selfie-remote/
It's going to be ugly...but that's never stopped me

Bumping as I have interest too.

You guys are making this way too difficult. Check this out. It works great on my joying.
http://m.ebay.com/itm/Car-Steering-...ayer-Bluetooth-Phone-/151832759268?nav=SEARCH

Anyone has found which xposed bt module the op was talking about ? I have already bought the bluetooth remote but I can't connect to it. (Works on my phone)

Also bought a Satechi® Bluetooth Button Series (Media Button) for use with my Joying unit but alas no success, so bumping this thread to see if there is any progression.
@dcmtnbkr are you able to show a quick video of your unit in action?

For the people that have gotten their bluetooth "remotes" to work, can you simultaneously also pair your phone and perform calls?

dcmtnbkr said:
You guys are making this way too difficult. Check this out. It works great on my joying.
http://m.ebay.com/itm/Car-Steering-...ayer-Bluetooth-Phone-/151832759268?nav=SEARCH
Click to expand...
Click to collapse
I bought much the same device but it won't directly connect to my HU. The HU will connect to my phone and my phone connect to media controller so I know all the devices work. Do I need a Droid program to allow access directly to the HU which is playing music from a USB flash drive.
Main problem is HU has panel controls for volume but cannot skip a song with going into player program. I use the display for my engine management gauges and don't want to keep getting out of program just to skip a song I don't like.
jim

I'm familiar with the one you're talking about, it's not the same thing.
I found another one that would work and is less intrusive.
https://rover.ebay.com/rover/0/0/0?mpre=https://www.ebay.com/ulk/itm/222631804601

Bluetooth Not Connecting - Worked Previously

OK, so I got everything working on my unit back in November. Bluetooth worked fine and connected with my phone and OBD device (OBDLink LX).
Suddenly within the last couple of weeks, it's stopped connecting. I have tried rebooting the radio, unplugging/replugging my bluetooth OBD, unpairing the phone, repairing, etc... Nothing seems to work for more than a few minutes. Sometimes it will work for one trip, but then the next trip it's back to REFUSING to connect to either bluetooth device. Remember - BOTH worked before, and I didn't change anything.
Since it's happening with both my Phone and my OBD device, it appears like it is a fault in the stereo. I really don't want to do a full factory reset as that would entail many hours sitting in the car wasting gas idling while I reinstall/reconfigure EVERYTHING only to not even be sure it won't do this again.
Anybody have any tips on something I can do to fix this? There does not appear to be any kind of "unpair" option in the bluetooth settings on the radio itself. I'm wondering if there's a way I can manually reset just all of the bluetooth settings - blow them away and start over without resetting the whole device.
This is a pretty big deal - one of the #1 reasons I bought this device was for OBD datalogging. If that feature does not work, I will rip it out of my dashboard and ebay it. PERIOD...
Adcice?

Nobody?
I tried changing the bluetooth device name, changing the PIN and re-pairing my devices. They work intermittently, but 90% of the time won't connect, or if they do, they won't stay connected.
This is turning my radio into an expensive piece of garbage...

lotherius said:
I tried changing the bluetooth device name, changing the PIN and re-pairing my devices. They work intermittently, but 90% of the time won't connect, or if they do, they won't stay connected.
Click to expand...
Click to collapse
Try keeping wifi on all the time (even if not actually connected to any network).

themissionimpossible said:
Try keeping wifi on all the time (even if not actually connected to any network).
Click to expand...
Click to collapse
I do have Wifi on all the time. I have an LTE Hotspot I keep in the glovebox of my car that powers up as soon as the car powers on. So there's 100% wifi coverage for my stereo no matter where I'm at.
I can randomly get it to connect, but it won't stay connected. When I'm in the bluetooth menu, the devices will actually disappear from the paired devices list. Both paired and available will go blank just suddenly as the devices drop off. Then they'll reappear on their own. So it appears to be the bluetooth stack is crashing - but I'm not sure why.
It is a KLD RK3188 unit. Running latest MCU (came preloaded, just bought it in November - I haven't put a new MCU) and recent firmware, which is a stock firmware, not MalaySK (MalaySK doesn't support the digital display below the screen on my unit)...

At this point this unit is trash if I can't keep Bluetooth working more than 10% of the time.
Sent from my OnePlus One.

lotherius said:
I can't keep Bluetooth working more than 10% of the time.
Click to expand...
Click to collapse
Some smartphones might show an incompatibility with the radio's BT stack. To be sure try with another smartphone.

I would see if it pairs reliably with just one device at a time. My phone has issues connecting with the HU if I first connect my BT headset to the phone but works fine if I do it after. Also the construction of these seems to be sub-par and it could be the bt device or antenna in yours was not connectec/mounted well and you hit a pothole and now its not attached/broken/loose. It may be worth opening and looking inside for something that broke off or is loose. Finally, I have had (well still have) my factory settings change randomly and have to go in and reset. There are settings in the for BT module and it may be worth looking to see if yours are correct.

I also have problems with mine but I'm running Marshmallow in my OPO. As soon as i go back to Lollipop (CM 12.1) it works again.

stormlabs said:
I also have problems with mine but I'm running Marshmallow in my OPO. As soon as i go back to Lollipop (CM 12.1) it works again.
Click to expand...
Click to collapse
Turns out I think it's the OPO. Mine has issues even with 12.1. I think it's based on Modem version not firmware version. Your modem may have been changed when you went back to 12.1.
For me changing modem versions is something I really want to avoid. I hunted forever for a modem version that didn't constantly drop WiFi and LTE, finally found one, and I think that's when the Bluetooth issues started. Every time I flash a modem to the OPO it becomes a nightmare. That phone really does not want you messing with the firmware which is not what I expected when I bought it.
For now I'm back on my old Nexus 5. No problems. I may just sell the OPO and never stray from Nexus again.
Sent from my Nexus 7 using Tapatalk

Hmmm.
My OPO doesn't connect to the headset but my chinese BT OBD dongle connects fine and works.

I have the same problem with my unit but phone working.Only obd2 adapter some times not connecting.Have you find any solution?

I have a similar issue with the Pixel XL.
Previous I was on a Nexus 5 Bluetooth worked perfectly every time without fail, could make calls, listen to music and sync address book no issue.
Now since moving to the Pixel XL I have an issue connecting to the head unit. The head unit shows as a connected device, but then flashes green then grey, green, grey showing connected, disconnected... I can still stream music from my phone over Bluetooth, but voice is not achievable.
Like suggested it's likely to be the BT stack in the handset rather than the head unit as works fine with Nexus 5. Highly frustrating and likely no fix unless it can be patched by software update

I'm also having the same problem as you noodlemctwoodle on a Nexus 6P with 7.1 developer preview.
I've un-enrolled from the beta program this morning, waiting for the ota to come down, as soon as it does will re-test and let you know if it's working, as I suspect it is a problem with the bluetooth stack in 7.1

MTCD MLT (Xtrons TD618AS) Bluetooth and OBD Reader
I have had issues with the Bluetooth on the MTCD MLT V1.76_1 (Xtrons TD618AS).
I found a work around which allows me to use the OBD reader successfully. I downloaded an Android Bluetooth App and toggled off the Bluetooth. Once the Bluetooth was toggled off I was able to access the OBD reader by using the "Piston" OBD app. I tapped on the car picture and waited for the app to think about things. Once the app finished thinking I was able to start capturing the live OBD data by pressing the play picture. I am only speculating, but I feel as though perhaps the firmware engineers goofed. This is even the OBD reader that Xtrons promoted as compatible with the TD618AS stereo I bought with it at the same time. Not to mention that I continually lose FM radio even though the stereo was professionally installed and no wires were cut. I was very excited, and now only depressed.

mr.hackerly said:
I have had issues with the Bluetooth on the MTCD MLT V1.76_1 (Xtrons TD618AS).
I found a work around which allows me to use the OBD reader successfully. I downloaded an Android Bluetooth App and toggled off the Bluetooth.
Click to expand...
Click to collapse
Which Bluetooth app did you download?

Problem with the can bus Citroen C4 assembly of a dedicated Chinese Headunit.

Hi
I have a problem with the can bus
ciytroen c4 assembly of a dedicated chinese.
The problem appears after plugging the radio into the cube after the serial one, namely the canbus module beeps pulsating. I will add that the radio turns on, receiving stations, they can be operated.
I will add that after configuring the module in the radio settings, the steering wheel buttons work this way. means there is communication and it still squeaks. I tried to insert the bundle with the module also squeaks.
watch it

kolaaa3 said:
Hi
I have a problem with the can bus
ciytroen c4 assembly of a dedicated chinese.
The problem appears after plugging the radio into the cube after the serial one, namely the canbus module beeps pulsating. I will add that the radio turns on, receiving stations, they can be operated.
I will add that after configuring the module in the radio settings, the steering wheel buttons work this way. means there is communication and it still squeaks. I tried to insert the bundle with the module also squeaks.
watch it
Click to expand...
Click to collapse
Hi
If you didn't manage to solve the problem yet...
You need to setup the can bus decoder in your head unit and then the beeping will stop.
If you need help just ask!
Cheers

StevoVTS said:
Hi
If you didn't manage to solve the problem yet...
You need to setup the can bus decoder in your head unit and then the beeping will stop.
If you need help just ask!
Cheers
Click to expand...
Click to collapse
Hi
thanks for the hint
one problem solved
there are more of these problems
- does not show the open door
-no possibility to control car functions
- air conditioning control does not work

kolaaa3 said:
Hi
thanks for the hint
one problem solved
there are more of these problems
- does not show the open door
-no possibility to control car functions
- air conditioning control does not work
Click to expand...
Click to collapse
Hi,
I'm dealing with the same problems.
Some of the car functions you can change over the car settings app.
And there should be a car info app which shows fuel consumption.
I'm still using the OEM multiscreen with steering wheel to change car settings.
But when using that I have the issue that all OEM displays get off and on during driving.
I'm trying to find a solution.

StevoVTS said:
But when using that I have the issue that all OEM displays get off and on during driving.
I'm trying to find a solution.
Click to expand...
Click to collapse
I have this problem too
There will also be information and oil change
every now and then kompyer performs a system test itself
what is your can bus decoder model?

kolaaa3 said:
I have this problem too
There will also be information and oil change
every now and then kompyer performs a system test itself
what is your can bus decoder model?
Click to expand...
Click to collapse
Yes the system diagnostics are running too.
I have a Raise can bus decoder G-PSA-RZ-65
I have 3 of them and with all the same problems.

StevoVTS said:
Yes the system diagnostics are running too.
I have a Raise can bus decoder G-PSA-RZ-65
I have 3 of them and with all the same problems.
Click to expand...
Click to collapse
I have a PSA-RZ- 15 decoder
I saw a video on youtube where everything worked
in the comments, the author wrote that he was using the PSA-RZ- 01 decoder
how do you set the can on the radio??

kolaaa3 said:
I have a PSA-RZ- 15 decoder
I saw a video on youtube where everything worked
in the comments, the author wrote that he was using the PSA-RZ- 01 decoder
how do you set the can on the radio??
Click to expand...
Click to collapse
I bought a PSA-RZ-01 decoder. This one doesn't work with my android HU. Maybe I'll try the Hiworld decoder. Really annoying

Are these MTCB type head units?

Did anybody find a fix for this problem.
I have the same problem with the citroen c4 doing a selftest while driving.
And it keeps resetting the small display

sanas24 said:
Did anybody find a fix for this problem.
I have the same problem with the citroen c4 doing a selftest while driving.
And it keeps resetting the small display
Click to expand...
Click to collapse
Is it an MTCB unit or hotboxing

marchnz said:
Is it an MTCB unit or hotboxing
Click to expand...
Click to collapse
It is the Srnubi T10 with MCU: TS10.1.1 android 11
https://nl.aliexpress.com/item/4001276007928.html

sanas24 said:
It is the Srnubi T10 with MCU: TS10.1.1 android 11
https://nl.aliexpress.com/item/4001276007928.html
Click to expand...
Click to collapse
Not MTCB, wrong forum

marchnz said:
Not MTCB, wrong forum
Click to expand...
Click to collapse
True, but I think the problem is related to the canbus module. So wanted to check if someone with similar problems did find a fix

Hi to all. I finally got a newer Andeoid version for my headunit and now all informations I need or I expected are showing on my headunit.
Everything before the update wasn't shown now appears like doors open informations, ECU fault codes, fuel informations and consumption, AC informations everything is shown like a popup information. And all that withe the Rais canbus decoder. The small original display I kept cause of the missing informations on the headunit is now not needed any more.
If someone still have problems with the canbus all you need is to update your andeoid unit to the actual version for your unit.

Can you advise what your canbuse settings are ?
Inside of the factory menu ?
I just installed a android T10 unit with a Raise canbus module. But only thing that is working on my Citroen C4 are the volume buttons...and even that does not work correct. I i press the menu button on my steering wheel sound also go up

StevoVTS said:
Hi to all. I finally got a newer Andeoid version for my headunit and now all informations I need or I expected are showing on my headunit.
Everything before the update wasn't shown now appears like doors open informations, ECU fault codes, fuel informations and consumption, AC informations everything is shown like a popup information. And all that withe the Rais canbus decoder. The small original display I kept cause of the missing informations on the headunit is now not needed any more.
If someone still have problems with the canbus all you need is to update your andeoid unit to the actual version for your unit.
Click to expand...
Click to collapse
Could you tell what exactly Android Unit do you have?

StevoVTS said:
Hi,
I'm dealing with the same problems.
Some of the car functions you can change over the car settings app.
And there should be a car info app which shows fuel consumption.
I'm still using the OEM multiscreen with steering wheel to change car settings.
But when using that I have the issue that all OEM displays get off and on during driving.
I'm trying to find a solution.
Click to expand...
Click to collapse
Hi, i have the same problem. Do you find something, how to fix this problem with resetting displays?

StevoVTS said:
Hi to all. I finally got a newer Andeoid version for my headunit and now all informations I need or I expected are showing on my headunit.
Everything before the update wasn't shown now appears like doors open informations, ECU fault codes, fuel informations and consumption, AC informations everything is shown like a popup information. And all that withe the Rais canbus decoder. The small original display I kept cause of the missing informations on the headunit is now not needed any more.
If someone still have problems with the canbus all you need is to update your andeoid unit to the actual version for your unit.
Click to expand...
Click to collapse
do you mean the newer version of the headunit or can.apk? I have done both and despite selecting different models the problem exists.. (My MCU starts CVD)
czaja1998 said:
Hi, i have the same problem. Do you find something, how to fix this problem with resetting displays?
Click to expand...
Click to collapse
Have you gone to Car Settings under factory and selected the relevant file under Can Setting? R011 is for Citroen C4 where the steering keys work fine, however my instrument panel keeps flicking between kmph and mph..
R016 works fine but only volume buttons work and the display screen thinks CD or radio is on.. (see picture)

scotcruz said:
do you mean the newer version of the headunit or can.apk? I have done both and despite selecting different models the problem exists.. (My MCU starts CVD)
Have you gone to Car Settings under factory and selected the relevant file under Can Setting? R011 is for Citroen C4 where the steering keys work fine, however my instrument panel keeps flicking between kmph and mph..
R016 works fine but only volume buttons work and the display screen thinks CD or radio is on.. (see picture)
Click to expand...
Click to collapse
In my android radio version, I didn’t see anything like “R0..” When I choose version of canbus “raise” -> psa/Citroen -> I have only models of car and I get C4L. Everything works like steering wheel buttons but I have problems with resetting displays and appearing diagnosis.

Help needed with understanding Xtrons HU navigation features

I recently installed a Xtrons PQS90MTVL head unit in a skoda superb. I have a couple of questions on how to get it to work correctly when navigating.
1) It seems that you can set the navigation sounds to be a percentage of the radio volume but cannot set it to play at a given volume regardless. The problem is that the radio seems to be constantly on and there is no way to turn it off. The 'on/off' button simply mutes the radio - and the navigation sounds.
Often I am in an area where I cannot pick up a decent radio signal on the programme I want and just get static. In these situations I want to turn the radio off but still hear navigation sounds. I don't want to listen to loud static just so I can have the nav sounds play at a percentage of that static. Is there a way to turn the radio off but still get navigation sounds? (a workaround I have found is to play a media file instead of the radio and then pause playback. The nav sounds are then still a percentage of the - non existent - playback volume. However this should not be necessary)
2) It also seems that a Internet connection is needed for any navigation. even google maps won't do a search without it as it says I am offline. (is this true?)
I have bought the 4G wifi dongle but have a question about its use. Does the HU connect to the dongle, as far as data is concerned, via the USB socket that comes out of the back of the unit or is that socket simply powering the dongle and the HUI is actually connecting to it over wifi using the dongle as a hotspot? If so then I don't have to use the wired usb socket from the unit (which I suspect is underpowered) and can plug the dongle into an ordinary 2A USB socket that I have in the car, positioning the dongle near the roof for a better signal
Incidentally I did try using Android Auto with my phone using wired connection. That seems sort of OK but is not very reliable. Often when starting the car it hangs at the 'connected' screen, or even at the 'trying to connect' screen, although other times it seems OK
3) There is a small socket on the left hand side of the HU that looks like a slot for a small memory card or a sim card. It is labelled 'GPS'. What is that socket used for? it is not mentioned in the manual as far as I can see. - The manual is generally a bit hand waving though, excitedly telling you what you can do but not how to do it.
(I did try the xtrons forum but not only are the last posts there around January 2022 but there seems to be no way to register for it. Hence posting here)

Is it MTCx post system info including mcu version.
Mtcb is long retired

marchnz said:
Is it MTCx post system info including mcu version.
Mtcb is long retired
Click to expand...
Click to collapse
All I know is the model is Xtrons PQS90MTVL so maybe its MTVL (whatever that is) I'm afraid I don't know what mcu means so cannot offer any version for it. Its possible I have posted this in the wrong section and have rep[osted in 'Android Head-Units'. If that is the right place and this is the wrong place, please can you delete this post