Canbus Management - MTCD Android Head Units General

I'm new to android radio, having looked but not touched for a long time.
I have a 2015 Jetta and for my birthday my family got me a Burger Motorsports JB4 (Piggyback tuner), and an XTRONS radio (PX5 8 core 4GB unit.)
The JB4 unit uses the CANBUS to keep track of engine parameters while it modifies signals between the engine and ECU to control boost, fuel pressure, and timing. Officially BMS says it won't work if you have other devices connected to the CANBUS and say it is due to bandwidth issues. If the JB4 detects that it isn't getting enough information across the CANBUS it defaults down to a safer tune.
I've discovered that as long as the radio boots after the JB4 they seem to play nicely together, for the most part. But this means the XTRONS software loses lots of settings every time I start the car.
I'm looking for a way to control what and how much the Radio uses the CANBUS for, I think if I could limit it to steering wheel controls and reverse camera I would be happy, or even just delay the CANBUS connection in the car for 30 seconds. The other path would be to flash a ROM that keeps all its settings when it is rebooted but I haven't seen that issue addressed in the HAL9000 or Malaysk threads.
Is there a way to modify what the CANBUS module is looking for? Would other ROMS tolerate being rebooted better?

Hi Profsnakes,
I am currently working on modification of some images in canbus.apk file
I am not sure you can get more from your car by just modifying the software, it depends mainly on the canbus adapter you are using
Have a nice day

Abbas Safieddine said:
Hi Profsnakes,
I am currently working on modification of some images in canbus.apk file
I am not sure you can get more from your car by just modifying the software, it depends mainly on the canbus adapter you are using
Have a nice day
Click to expand...
Click to collapse
Thanks for the reply. Unfortunately, I don't know or understand much about the development side of this stuff. I've worked as an electrical technician for years and have a good understanding of how a Canbus works but not the programming or design side of the stuff attaching to it.
Rather than getting more out of it, I was hoping actually to be able to limit how much it used the network somehow. Even just reducing how often it polls the network. The other device I have attached requires a constant data stream from the ECU.
At this point, I have narrowed the problem down. While it would still be good to limit the bandwidth used by the radio. It seems the error I was having was being caused by the USB connection between the radio and the tuner when the car was starting up. So far disconnecting the USB when the car is off and reconnecting after it turns on seems to keep it stable. I ordered a USB "KVM" style switch that I'm hoping will keep me from having to open the glovebox all the time.
Heres what I've got going.
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Related

Reset head unit; now radio does not work.

Joying dual-core, 800x480
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Short story is that Pumpkin had me reset the system to stock. This caused me to not have radio at all (no static, never finding a station) and the physical "back" button does not work.
To my knowledge, I have messed around with all the settings possible (126 code, changed among 7 radio types on both American bands).
I installed Malaysk's latest ROM thinking that might fix it all, but it did not.
Does anyone know the correct settings or have any idea on what I can do to get things to work again?
Thanks
Looks like you updated with the wrong MCU image. If you have written down the original MCU code you can download a MCU image from this forum and restore your radio.
Oh, let's just pretend that I never wrote anything down. Where can I get info for the correct one?
NYCAR said:
Oh, let's just pretend that I never wrote anything down. Where can I get info for the correct one?
Click to expand...
Click to collapse
Well, then, you're in a bit of a trouble. I would have said to contact your vendor but since they sent you the wrong files in the first place there's no guarantee you'll get the correct ones this time. It may be better to contact the vendor nevertheless and request a replacement unit since their software update caused the HU malfunction.
Actually, I stumbled on the solution this morning (I just hadn't had time to post yet).
I thought I was making alterations, but the stereo needed to be reset each time in order to actually apply the changes. After 15 permutations, I stumbled on the correct ones and now I have radio and correct buttons.
Pumpkin C0257.
Radio app not working!
Just a quick flash of the screen and does not start.
If I assign 'Mode' to a steering wheel button, I can hear the radio.
No screen nothing, just sound.
I've tried every setting I can think of.
NYCAR said:
Joying dual-core, 800x480
Short story is that Pumpkin had me reset the system to stock. This caused me to not have radio at all (no static, never finding a station) and the physical "back" button does not work.
To my knowledge, I have messed around with all the settings possible (126 code, changed among 7 radio types on both American bands).
I installed Malaysk's latest ROM thinking that might fix it all, but it did not.
Does anyone know the correct settings or have any idea on what I can do to get things to work again?
Thanks
Click to expand...
Click to collapse
You can contact the seller for help

Ford Convers+ with RK3188 KLD6

Hi.
I'm looking for some help regarding the functions available via the steering wheel on my Mondeo MK4. I've read numerous threads that touch on this topic but I haven't found any definitive answers so I thought It would be worth starting a specific one here.
Background
I replaced the original Sony 6 CD Head Unit with an Auto-Pumpkin (MTCC RK3188 KLD6 V2.91) which has an external CAN bus decoder.
What works (the left steering wheel button array):-
Volume Up/Down
Track next/previous
Function button to cycle between AM/FM Radio, DVD, AV-IN, Video, Audio App
What doesn't work (the right steering wheel button array and indicator stick additional functions):-
Ability to select mobile phone options (answer/end calls, call list, address book)
Voice commands button
I never used the voice controls so that's no great loss, but I did use the mobile phone controls often, so would like to explore the options of regaining them.
I am aware that varying levels of CAN bus functionality can be achieved by selecting different configurations from the settings menu on the head unit, and some people have even re-wired for improved function but not on a MK4 Mondeo (that I can find via google).
I'm assuming the phone issue is CAN bus related because when I select any function that is based on the SoM (DVD, FM Radio, Video in etc) the Convers+ shows more options, including phone (although it is greyed-out - I'm assuming because no phone is paired). I also noticed that the Ford bluetooth module is still active as it shows up, but only when this menu is available. Unfortunately I can't connect to it because the Android HU doesn't display the PIN for pairing like the original Sony HU did.
This is a picture of the Convers+ when the Android HU is operating with only Android apps running (e.g. DAB tuner, Rocket Player)
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This is picture of the same Convers+ when any of the SoM apps are running (DVD, FM Radio, Video in etc)
Correct me if I'm wrong, but it would seem that the CAN bus controller activates only when one of the SoM apps are running? I only understand the basics of CAN bus and how it interacts with the HU so this is very much a wild guess.
What I would like is to have my phone controls available via steering wheel buttons, in whatever way that is possible.
Any help, advice or suggestions are, as always, greatly appreciated.
p.s. these are the HU details

Peugeot 508 with JBL amplifier cannot run Android unit, cut off the sound in 3 second

Hi, I bought Peugeot 508 with factory integrated JBL 5.1 sound system with already fitted Andoid (A-media, RK3188, 5.1.1, MTCE_MX ) already canbus decoder (no brand, just sign for 2008) connected to the unit.
All signals from the steering wheel and buttons are working. Wipers, fuel level, volume, clima, etc... So the canbus is doing his job, except for the audio.
I tried different ROMs factory, Malaysk, Hal9k, with different versions of MTCE_MX from 2.96 to 3.30, but the same result.
I found a video having totally the same behaviors as mine:
https://www.youtube.com/watch?v=7Eb2N_9NF2c
If I move the volume control I got perfect sound for 3 seconds than cuts off....so if I'm moving the volume up and down contentiously I'm never loosing the sound, but it will show on the screen volume up-down all the time.
I tried all manufactures and types in the CANBUS sub-menu but all has the same result - no sound or sound 2-3 seconds and cut out.
In my mind the canbus adapter doesn't send sync signal to the JBL amplifier and then amp is cutting the sound, but I'm not sure.
Cannot be too high levels of the signal, because I can turn the volume up to the end and still is keeping perfect sound for 3 sec and cut off.
I also tried to change the type of amp with lexia there are 2 types "other" and "RT5", both has negative result.
Observations:
1. Without canbus module is no sound at all when the unit is connected in the car.
2. With Lexia diagniostic utility test of the Amplifier is completed without any issues, I can hear all speakers and sub.
3. I tried to connect the Android unit out of the car with directly connected speakers without Canbus, and all is working fine.
So for me is 3 solutions now:
1. Check with different canbus module box, but looks like every different manufacturer is producing its own canbus modules... My Android device is having brand A-Media ((MX) MAI_XIN Shenzhen Mai Xin Da Technology Co. Ltd) and there is no any support I found.
2. Find diagram for the AMP to catch where the signal is expected
3. Find app in google play to emulate up and down volume every second
4. Find the file responsible for CAN audio and change it with working one, if any.
If someone knows what can be done, or just ideas... please lae me know!
Thanks in advance!
Angel
I have the same car with same setup. I had the same problem when installing the head unit. It's easy to fix. Just go to the "Factory settings" and select the same settings like on the picture.
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ecsagsp said:
I have the same car with same setup. I had the same problem when installing the head unit. It's easy to fix. Just go to the "Factory settings" and select the same settings like on the picture. View attachment 5056731View attachment 5056733
Sent from my Redmi Note 7 using Tapatalk
Click to expand...
Click to collapse
Thanks a lot. I will test and reply ASAP.
I'm using same:
Canbus 61
Left Rudder
8 508 H
With Amplifier
Key mode NO
The difference is:
Aircondition : type1
and you have MTCE_MX_V3.41_1 and I have 3.30.
I will update MCU and revert.
Also mine is RK3188 and your is RK3368.
Thanks a lot again, I will keep you posted!
Any news?
Is it working?

Wifi connection issue with iPhone using hotspot

Hi Guys!
This is my first post here, I wasn't aware of such form until I searched my issue with my android box.
I'm having connection issues connecting my android box to internet using my iPhone 12 hotspot.
It was working perfectly in the past until I updated my iPhone firmware.
Please have a look at my device version.
Do you have any ideas how I can fix this connection issue? Maybe needs MCU update?
Thanks!
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up
i had something similar,
1) ensure maximise compatibility is turned on in personal hotspot on your iphone.
2) You want to remove the wifi connection for your phones wifi network name on the head unit.
3) manually add the network for your iphone on the head unit choosing wpa2-psk as the security.
it should then connect.
issue seems to be something to do with wpa3 on iphones vs the head units.
martr84 said:
i had something similar,
1) ensure maximise compatibility is turned on in personal hotspot on your iphone.
2) You want to remove the wifi connection for your phones wifi network name on the head unit.
3) manually add the network for your iphone on the head unit choosing wpa2-psk as the security.
it should then connect.
issue seems to be something to do with wpa3 on iphones vs the head units.
Click to expand...
Click to collapse
Hi,
Thank you. It doesn’t work.
I tried another iPhone and it worked.
My iPhone doesn’t have maximize Compatibility. It is iPhone 10 S.
It works on my iPhone 12 only not on the iPhone 11 S.
What should I do?
if you follow the steps without maximise compatibility, does it still not work?
Yes…. It doesn’t work.
I followed the same steps without maximize compatibility but still not working
Is there any updated version for my box ?
Mine is version year 2018
you might want to look at other roms hal9k may be compatible with that head unit.
I honestly don’t know, I don’t have much experience.
What do you mean other rooms?
Can you share with me the link to the other rooms please
i wouldn't know the link to the correct rom (software of your head unit) , if your not experiance in alternative roms i would suggest caution as you do run the risk of bricking(stopping it from working) your head unit. i'd ask around in the forums on what updates you can use.

PX6 Android 10 head unit Radio stops working.

Hello, i have a huge problem with my android head unit which i bought from Ali.
Everything works fine except radio. fm and am.
More specifically when i turn the ignition on, radio works fine and after 1-2 minutes it stops like it has no frequency at all. When i try to search for the next radio station it does nothing. All other functions work perfectly (Bluetooth, usb, YouTube etc.) . Now, in order for the radio to work again, i have to turn of the engine, wait at keat 5 minutes and then turn again the engine on. The radio then works again for 1 -2 minutes and is does the same thing all over.
I have already tried factory reset but that doesn't work.
hello all sorry that picture and my car stereo after android 10 update
the volume while listening to the music has become lower i.e. you start hearing at 25 instead before you started hearing at 11 does anyone know how I can fix it thanks
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jimbraz said:
Hello, i have a huge problem with my android head unit which i bought from Ali.
Everything works fine except radio. fm and am.
More specifically when i turn the ignition on, radio works fine and after 1-2 minutes it stops like it has no frequency at all. When i try to search for the next radio station it does nothing. All other functions work perfectly (Bluetooth, usb, YouTube etc.) . Now, in order for the radio to work again, i have to turn of the engine, wait at keat 5 minutes and then turn again the engine on. The radio then works again for 1 -2 minutes and is does the same thing all over.
I have already tried factory reset but that doesn't work.
Click to expand...
Click to collapse
If it's a software problem, you can easily find out with NavRadia+, Basic is enough for the test:
NavRadio – Aplikace pro Android na Google Play
Vychutnejte si miliony nejnovějších aplikací pro Android, her, hudby, filmů, televizních pořadů, knih, časopisů a dalšího obsahu. Kdykoli, kdekoli a v jakémkoli zařízení.
play.google.com
Some radio settings are in factory settings (password126). In the Radio tab, set your region. In the Other tab at Auto search stop - DX - 20 db, try another value.
You have to detect the hardware problem yourself, it can be bad wiring, bad grounding, faulty radio chip, fault on the motherboard, the device is interfering with the alternator, led lights, some additional equipment, antenna....
Give it to an expert who will measure everything, but it is difficult to find someone for these devices.

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