zlink bluetooth connection - MTCD Android Head Units General

Helo.
I have chinese android navigation mcwauto 8001 for Audi Q5 8R.
My issue is lack of bluetooth connection when I am using Zlink app.
I am able to connect phone with naviagation via bluetooth, but when I establish android auto connection using USB port the bluetooth connection is lost.
Because of that I am not able to make a call using android navigation/zlink. The call is make by phone speaker instead of bluetooth (android navigation).
What is more I tried several times to force bluetooth connection with my phone when I am using wired android auto, but even I am able to connect bluetooth the connection is lost every time I am trying to call.
When I call I have the message "you are not connected with bluetooth"
My zlink app is 3.9.31 - according to my navigation this is the current version of zlink. I found few newest upgrades but I am not able to install it. Few of them stop installing in about 80%, the rest even installed properly not working, the app just stop responding, and the hard reset are required.
Does any of you know solution for my problem?
The red android auto icon (two triangles) on my navigation are showing and disappearing constantly, does anyone of you know what this is mean?

But it's not an MTCD device new member joined for free support.
Requested moderator move to (Android head-units) forum.
Also, what does seller suggest you do when contacted for support

Related

[Q] A2DP bluetooth autoconnect immediately disconnects?

Hi, I've got a small issue with my bluetooth a2dp device. The device is this one:
BlackBerry Remote Stereo Bluetooth Gateway. It is made by RIM, but works with any device supporting a2dp. My issue with the Galaxy Nexus is that it no longer auto connects.
My setup is in my vehicle, I keep the bluetooth receiver connected to the aux power jack and aux audio in in the center console. This way, when I start the car, the receiver powers up and tries to auto-connect to the last device. On my vibrant with Android 2.1/2.2 this worked fine. When I dabbled with CyanogenMod and some other custom roms, it stopped working but I chalked it up to some problem with the custom rom.
Now, I'm seeing the same sort of problem: if I keep the screen of my nexus on, I can see the bluetooth icon change blue, and then immediately change back to gray. To me, this indicates that the receiver succeeds in connecting but is then disconnected for some reason. The device only supports a2dp, not the handsfree profile. When I looked into the Android kernel code, I found a place where the kernel will try to connect the handsfree profile if the a2dp profile is auto-connected, but it wasn't clear if that was the actual problem or not.
Anyone else have any similar experiences?
I have the same device in my 2008 Accord coupe which is placed in the center arm console. I had an Evo 3D that would automatically connect when I would start the car and BT was already enabled on my phone. I too switched to a different ROM and would have issues auto connecting so I switched back to a different ROM. Now on my stock GN, I have to manually go into settings and click the device to connect. I see no settings about auto connecting when in range. I will have to see if the BT icon turns blue and then back to gray... haven't looked for that. If anyone has thoughts on this, I'm all ears!!
bigdawgr6 said:
I have the same device in my 2008 Accord coupe which is placed in the center arm console. I had an Evo 3D that would automatically connect when I would start the car and BT was already enabled on my phone. I too switched to a different ROM and would have issues auto connecting so I switched back to a different ROM. Now on my stock GN, I have to manually go into settings and click the device to connect. I see no settings about auto connecting when in range. I will have to see if the BT icon turns blue and then back to gray... haven't looked for that. If anyone has thoughts on this, I'm all ears!!
Click to expand...
Click to collapse
I suspect it has something to do with Android's attempts to auto connect to the headset profile when a A2DP profile is connected.
See:
# Automatically connect both A2DP and HFP/HSP profiles for incoming
# connections. Some headsets that support both profiles will only connect the
# other one automatically so the default setting of true is usually a good
# idea.
#AutoConnect=true
Click to expand...
Click to collapse
from https://github.com/android/platform_system_bluetooth/blob/master/data/audio.conf
I have seen the code where this happens and it seemed that if the headset profile failed to connect, the A2DP connection was also disconnected. Though, I can't recall what file it was.
jjohns63 said:
I suspect it has something to do with Android's attempts to auto connect to the headset profile when a A2DP profile is connected.
See:
from https://github.com/android/platform_system_bluetooth/blob/master/data/audio.conf
I have seen the code where this happens and it seemed that if the headset profile failed to connect, the A2DP connection was also disconnected. Though, I can't recall what file it was.
Click to expand...
Click to collapse
Strangely enough, the phone paired with the device twice without issue yesterday and failed once later on that same day. I'm toggling BT off and then on to get connection for now.
It seems like the phone and device are connecting without issue but I know I haven't done anything to change it. I'm on AOKP M3 and Leankernel V1.8 if that helps. When I first flashed those two, I still had connections issues, so switching to them wasn't a resolution.
I am not sure this really helps your issue but it is related. I wrote an app that will auto-connect Bluetooth devices. It is free on the market and is called A2DP Volume. The current implementation of auto-connect looks for one device connection and then connects another. I started another widget that will simply connect a Bluetooth device but I have not finished that one. A2DP Volume is free, open source, and ad free. You can find the open source project on Google Code. Just search for A2DP Volume.
I have been trying this for weeks and this app solved it!!! Thanks for making the app!
jroal said:
I am not sure this really helps your issue but it is related. I wrote an app that will auto-connect Bluetooth devices. It is free on the market and is called A2DP Volume. The current implementation of auto-connect looks for one device connection and then connects another. I started another widget that will simply connect a Bluetooth device but I have not finished that one. A2DP Volume is free, open source, and ad free. You can find the open source project on Google Code. Just search for A2DP Volume.
Click to expand...
Click to collapse
jjohns63 and bigdawgr6,
Any update on this problem? I don't have the Nexus, but I have Droid Incredible 2. I also run into the same problem when I use CyanogenMod 7.2, which is a AOSP based ROM. The connection is fine with the stock ROM. I have tried to change things in the audio.config but it does not seem to help. I think I ran into a post somewhere saying HTC stock ROM uses a propietary bluetooth stack and AOSP and CyanogenMod uses BlueZ open source stack, and that is where the problem is.
Anyway, it would be nice if you guys can share some info.
Thanks!

Bluetooth Connectivity Issues - Limitations?

So I have an Eonon GA1312 Single din (RK3188).
I have been having two bluetooth issues. All have been troubleshot by disabling and enabling/deleteing data/cache of Bluetooth app, different settings and "off" in factory settings for bluetooth tab and a reload of malasyk rom after a factory reset.
Bluetooth will always show every device it sees. I have 6 Devices under "available devices". 2 I know of (game pad and OBD). 4 were because things were in range when scanning. They persist through everything. It's so weird.
Secondly, the ODB, while off is "available", but once conmected it jumps to "paired" devices and connects no problem. My game pad (nes30 pro to test the viability of bluetooth media control without buying one) is there whether in range, on, or not, and if I try to connect, I tap it, I am asked if I want to connect, and it does nothing.
My cellphones connect fine.
I read all over about some bluetooth limitations but found nothing documented on tje wiki or in the forum.
Any help? Sorry if repost, I thought I made a thread but it says it isn't there and I have no move/deleted notices.
Bump for justice.

Mi6 bluetooth problems

Each time I use Mi6 via bluetooth in car to answer/make calls - first call goes OK, and all others not - people I talk to don't hear me. It happena in 4 different cars so it's not car's problem. Mi5 was OK. I run 7.1.1 NMF26X global beta. miui 8 7.6.8 global beta. And can't solve it myself. Tried deleting and re-adding cars, restarted phone - nothing helped. When I switch to phone during call - it's OK. As soon as I switch back to car - same problem. No one hears me and I hear everyone.
Any1?
I'm sorry but I can't test because I don't have any Bluetooth devices.
Not using any bluetooth device either.
Hello there
I'm a new xiaomi mi6 user. I have 7.5.25 version rom installed on my phone. My phone does not see andriod wear app on my smart clock with bluetooth. Also does not share internet with hotspot. There is also a problem with the GPS, the satellites can not find it immediately. can you help me.
Thank you
ERSL said:
Hello there
I'm a new xiaomi mi6 user. I have 7.5.25 version rom installed on my phone. My phone does not see andriod wear app on my smart clock with bluetooth. Also does not share internet with hotspot. There is also a problem with the GPS, the satellites can not find it immediately. can you help me.
Thank you
Click to expand...
Click to collapse
Ok, one by one.
1. My phone does not see andriod wear app on my smart clock with bluetooth --> My watch works, did you unpair your watch with old phone first? Android wear watch can only connect to 1 phone.
2. There's personal hotspot, you can see it in the settings menu.
3. GPS needs time to find your phone, you need to have wifi (or mobile data connection to assist the phone), if it located your phone, next time GPS will work faster.
It is a different issue with me: when paired with a BT device with the "phone audio" profile enabled, despite picking up the call on via pressing the green button on the touchscreen, it still defaults to the BT device (and I have to switch audio back to "phone" before the other person cuts off after hearing nothing). This is on the global ROM 8.2.2.0...
The global ROM seems buggy as hell...
alien2k1 said:
Any1?
Click to expand...
Click to collapse
Hello Friend.
The same happens to me.
It connects to bluetooth but I have no output or audio input.
Did you get it fixed?
Thank you
Everyone.
This is not xiaomi's problem.
This problem is due to oreo's new bluetooth stack.
There is no current solution to this. I've searched far, wide and deep.
Android has a great track record in keeping the bluetooth stack broken.
If you try to search google, you will find out that not only xiaomi phones have this problem.
The only theoretical solution is to port old bluetooth blobs, and somehow make it work. But as far as i know, no one has done this before.
There is hope that android pie will fix this. But from what i read, early builds of pie still has this problem.

Automatic bluetooth connection with HFP

Hello, I have some problems with the bluetooth connection to my Seat Leon (2016). Pairing worked fine but once I return to my car only the A2DP profile gets connected. In the car menu media control is working correctly but the phone part is shown as disconnected. The bluetooth connection state in the phone settings shows "connected (no phone)" then.
To fix this I have to manually disconnect and reconnect bluetooth on the phone - afterwards everything is working as expected. This is very annoying though and I had no such issues with my previous Nexus 6P (stock 8.1).
Any suggestions? If there is no solution I try to fix this with tasker, however I'd clearly prefer a "native" solution.
Thanks in advance.
Seems like it's working with the app Bluetooth Auto Connect, will test it more intensively in the next days. But I'm still wondering why it's not working out of the box...

Tasker problem on vehicle "sorry no data available on paired bt devices."

Hello, I want my car to say a welcome message by tasker Via voice, as soon as my phone connect the vehicle via bluetooth. However, although my phone is connected, tasker sees Bluetooth connections as closed and returns with an error like this. "sorry no data available on paired bt devices."
How do I get Tasker to detect that bluetooth is turned on.
Device: A-media Px5
Mcu: 3.30 Mx
BT: WQ_BC6
Thank you to everyone who has already helped
Sorry. For Google translate problem.

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