yashsingh1/xdaforums huggingface dataset:
[MTCD Android Head Units General] pedroof:
Hello, I am wondering if you can help me with an issue that is driving me CRAZY with my headunit. I have tried EVERYTHING I can think of and searched hundreds of threads with no answer.

Basically, my headunit was working 100% fine when I received from factory. Great audio quality, subwoofer output worked perfect.

Then, I went into settings and did factory reset. I DID NOT FLASH NEW MCU OR FIRMWARE.

After the factory settings reset, now my audio quality is TERRIBLE on all apps, bluetooth, music app, radio, etc. Subwoofer adjustment in EQ seems to work, but subwoofer still somehow gets power and is playing sound even when I turn it all the way down in EQ settings..

I have tried flashing new firmwares, MCUs, unplugging unit, clear cache and data, nothing seems to work to get my good audio quality back.

You are extremely smart and know much more than me about there units, do you have any suggestions as to what I should try? If nothing else works I will have to eventually just try your hardware modification, but I feel like there has to be some software fix to this. Some issue happened after reset settings, but I have no idea what it is!

ANY help would be greatly appreciated. My unit is a MTCD type with PX5 processor, MCU v. 2.59. Tried many different MCU versions, firmware versions, issue still exists.

---------- Post added at 04:06 PM ---------- Previous post was at 04:03 PM ----------

Maybe try to look at your ILLUMI wiring, maybe try to adjust the brightness controlled by headlight and panel LED controlled by headlight options under factory settings. Try to set to off or default on instead of controlled by headlight and see if that makes any difference.

---------- Post added at 04:12 PM ---------- Previous post was at 04:06 PM ----------

I would look into the wiring harness that came with your unit. Make sure it is correct one for your car. Compare it's outputs with your model vehicles wiring diagrams to make sure everything connects where it should, in particular the ACC wire, +B Backup wire, KEY1 & KEY2 wires.
[MTCD Android Head Units General] tnazario:
It did not work well with that one either. Going to check connections next.
[MTCD Android Head Units General] arti777:
Today I turn on the car and unfortunately I lose the memory of the steering wheel again, but once programmed again, the ignition key in the first position for the time being, I will see tomorrow morning as I go to work. But I think the memory problem lies on the canbus side.
[MTCD Android Head Units General] tnazario:
This is exactly what is happening to me. Going to take a look at wiring over the weekend.
[MTCD Android Head Units General] arti777:
I have a honda accord key 1 and key 2 connected under the steering wheel directly gnd (-) same, but this new mcu helped a little bit better but the memory lost after awakening, after a few minutes it starts to work almost well but not always.
[MTCD Android Head Units General] Iscariot76:
My unit is from Erisin with frontpanel and multiplug specially made for Ford. I have not really done any wiring, just plugging in the multiplug. CAN bus is built in. So not sure how to check my ILLUMI wiring. but I will figure it out. I did however disable everything related to headlights in factory settings, but no luck. My car is still flashing every second while it should be in sleep mode. Is there any way to power the CAN bus only on ACC?
[MTCD Android Head Units General] tnazario:
what year? I have an accord too. 7th gen.
[MTCD Android Head Units General] Clandaries:
I had this at the beginning in my Suzuki Swift Sport 2015.

The steering wheel settings got lost but not always.

After i installed Malaysks rom, everything was fine. Now it is working for about 3 weeks.

Regards
[MTCD Android Head Units General] arti777:
yes 2006 mk7 2.4s 190bhp

Wysłane z mojego SM-G935F przy użyciu Tapatalka
[MTCD Android Head Units General] Iscariot76:
I finally managed to sort out my issue. In the 36 pin connector between my car and my HU there is a pin A13 called Alarm sense. I ended up cutting that cord, and now my light are not flashing anymore, and hopefully my car goes to sleep. I hope this has stopped the car from draining my battery. Picture of connector: http://www.tehnomagazin.com/images/Ford 6000 CD wiring connector.jpg
[MTCD Android Head Units General] gitoo51:
New stock version

Hi, this is my first post on this forum, good work guys !

I've sent a message to the PX5 upgradecard because it was buggy (but now I think that was due to a miss plugged card, and bad roads make the card moves ? to comfirm),

but he sent me a new version of the stock firwmware that you don't seems to have, maybe you guys are interested in it ?

my MCU is a JY version (HA compatible)

http : / / 163.172.221.155 / 259ee9bc40b90bce961e63c5483b99a1 / hct_PX5_6.0(20170822).zip

(sorry for the link, I cannot send external links yet)

enjoy ;)
[MTCD Android Head Units General] Jefft5:
Quick question, do all the PX5 units have sleep and quick boot functions?
[MTCD Android Head Units General] ikerg:
Yes....but not all have a menu for switching from always sleep to delay full shut down.

That option depends on the MCU software which is more depending on the manufacturer side.

Dasaita (HA) manufacturer has that option

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[MTCD Android Head Units General] tnazario:
Thanks for your suggestion, tried and it worked for about an hour but as soon as I turned on the car the next morning, controls are lost again.
[MTCD Android Head Units General] Clandaries:
Sorry to hear that...:mad:
[MTCD Android Head Units General] bettuccio:
Why did apk Avin not open at the first shot? I tried a front cam with lines connected to AV in RCA but when I open Avin apk, PawerAmp wants to play and immediately closes and does not display the image. I should force the opening more touch than one why is happening? if i force the opening with the touch the image you see. Is it a firmware issue or is there some service that prevents the opening? I have the rom Malaysk v.5 and MCU MTCE MX 2.65
[MTCD Android Head Units General] tnazario:
did you solve your steering wheel control issue?
[MTCD Android Head Units General] ikerg:
It occurs as well for the radio app

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[MTCD Android Head Units General] bettuccio:
I remember this issue for the radio. I never use it and I thought Malaysk had solved it. Now I do not understand why Avin apk has the same problem. In my opinion the cause is PawerAmp as it is also for Radio. I should try to uninstall PowerAmp and try it if it works

before I thought I had a low voltage to run the CAM but I took the current from the 12 volt wires.
[MTCD Android Head Units General] tnazario:
Would any of you have a wiring diagram for the ISO port of a PX5 unit? I was given the attached, but its extremely hard to follow because the harness I was given does not seem to follow the same color scheme, perhaps im just wrong... Everything works except for the SWC forgetting mapped buttons after a while.

Not sure what to check next, so what I am looking to do it run a wire from OEM harness directly to radio but cannot seem to figure out which is the KEY1, KEY2 on the attached harness picture.

I have a Klyde with RK3066 and 2GB RAM, originally MTCD but upgraded to MTCE.

MTCE_KLD_2.65d
[MTCD Android Head Units General] typos1:
Theres no such thing as a "PX5 unit" in this respect - there are approx 15 companies making MTCD/E RK3368/PX5 units and they also make RK3188/PX3 units. Wiring diagrams are the same for units with either processor from any one company but not necessarily the same from each company - not all companies use the same schematics on their motherboards.

The manufacturer is denoted by the letters after "MTCD" or "MTCDE" , so please post which letters appear in your MCU field so we know what unit you have and anyone with one of those units may be able to help.
[MTCD Android Head Units General] tnazario:
Oh sorry, meant to attach a screenshot of my about screen... Anyway, its for a Klyde with RK3066 and 2GB RAM, originally MTCD but upgraded to MTCE.

MTCE_KLD_V.2.65d
[MTCD Android Head Units General] Mau2012sim:
Taking your picture with the blue plug as a reference. The two brown wires at the bottom half are key1 and key2. The black wire next to the two brown wires is steering wheel ground. Those are the wire you need for your (analog) steering wheel controls.

The others in the bottom half: blue = antenna power (or can be used for amplifier control), red is 12V power via ignition switch.

In the top half: Black is ground, Yellow is 12V constant power, orange is most likely illumination switch. The orange might also be the reverse signal.

All remaining wires ("in the middle") are speaker outputs (for 4 speakers).
[MTCD Android Head Units General] tnazario:
thanks, thats precisely my issue.. I need to know which brown wire is KEY1 and which is KEY2. My car only needs one of those two aside from the ground. its difficult to differentiate them because the diagram on top of radio does not really set them apart.
[MTCD Android Head Units General] Mau2012sim:
I also have a KLD unit, and in my case all the colored wires were additionally labelled.

For key1 and key 2 it actually doesn't matter which one you take. You have to program the keys anyway.

If there is just one active wire from your swc, then connect it to either one of the brown wires, and swc ground to the thinner black wire (sw ground) near the browns.
[MTCD Android Head Units General] typos1:
Just try both - nothing can go wrong if it doesnt work.
[MTCD Android Head Units General] tnazario:
Thank you so much. Looks like everything is connected properly. Its currently connected to Key1, would you say that switching to Key2 would make a difference? I'm still having the same issue. Our could it be a ground problem?
[MTCD Android Head Units General] WishiHadAnR32:
Anyone have the APK for the AV in app they could share? Or know of a better alternative to the preinstalled one?
[MTCD Android Head Units General] djbubbbbbz:
Reverse Camera help!!

Received my new unit its great,

I have LM V2.62_1 is this thew latest version?

seem to have the steering wheel control lost but this is day 1 -

on the back of the unit, there are the lables wired do these need to be fitted as i have not connected any wires to anything.

Reverse camera problem - existing camera already fitted, i presumed hard wired to reverse light ect, plugged into reverse plug at back of unit and i get nothing, evan with the lines i move the wheel and nothing moves. there is a wire written with reverse on it?

can any body help?
[MTCD Android Head Units General] typos1:
There is a (usually) pink wire on the back of the unit that tells it its in reverse.
[MTCD Android Head Units General] djbubbbbbz:
yes there is a loose wire with reverse, do i need to strip this and fit onto where ???
[MTCD Android Head Units General] typos1:
There should also be a wire on the camera RCA lead, connect it to that.
[MTCD Android Head Units General] djbubbbbbz:
yes the rca is connected fine,

i have switched on reverse camera, xmirror and the lines - no picture - just a YELLOW ! mark.

i have power from the camera, etc im going to start again clearly something im doing wrong.

just have a problem with steering wheel think may install malayska build to see if it fixes it.
[MTCD Android Head Units General] typos1:
The RCA cable should also have a single wire coming from it, this wire needs to be attached to the reverse wire, without it the head unit does not know the car is in reverse.
[MTCD Android Head Units General] djbubbbbbz:
i have the rca which i plug camera in, there is also wire with reverse on thin separate wire, so separate wire needs to go to reverse - you mean attached to reverse wire (all the wires plugging into unit)

When i put car in reverse it goes to reverse screen just black

i will send picture if easier sorry
[MTCD Android Head Units General] typos1:
As I keep saying - there should be an extra wire coming off the RCA lead from the camera, this needs to be connected to the reverse wire on the back of the head unit.
[MTCD Android Head Units General] djbubbbbbz:
from the camera i understand now - this was connected to the reverse light bulb wire - not to the reverse cable at the back of the unit thank you
[MTCD Android Head Units General] ikerg:
I don't think that reverse lines should be moved with steering wheel.

For the case of connection...double-check the connections. Share with us some pictures

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[MTCD Android Head Units General] typos1:
you need to connect BOTH - ie to the reverse light AND to the back of the unit.

Yes they should, that is the point of them.
[MTCD Android Head Units General] Mau2012sim:
Grounding could be an issue. Maybe you could try to ground the SWC to the main ground wire (the thicker black wire in the blue plug).

I don't think connecting to key2 would solve the issue. Perhaps there is a signal issue, where the different resistance values of the buttons are in the wrong range or the signal is too weak overall.

But I would try to improve grounding first.
[MTCD Android Head Units General] hollboot:
Pls. Help me who can give MTCD GS v.2.43_2 or latest

hi everyone who can give mtcd gs latest to me pls.:good::good:
[MTCD Android Head Units General] alda.cerny:
look in my signature ( in my profile)
[MTCD Android Head Units General] julien_blanche:
Hi, i have PX5 6.0.1 MTCD MX which was running perfectly until I have upgraded MCU to MX 2.65 and system rom to 20171016 then my radio reception down to almost zero. Head unit keeps scanning radio and cathes nothing. Also i have entered manuel frequency with no luck. Checked factory settings in the radio section only yes or no options available. Can you help me with this issue ?
[MTCD Android Head Units General] typos1:
Hmm, try downgrading and seeing if that helps, did you use the "export" function to save your MCU settings before you flashed the new MCU ?
[MTCD Android Head Units General] ikerg:
Did you check if the frequency country on factory settings is correct?

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[MTCD Android Head Units General] julien_blanche:
I have downgraded mx mcu from 2.65 to 2.59 and tried radio no improvment just interference noise also checked country is europe from factory settings. What else can i do ?
[MTCD Android Head Units General] Floston:
Have you installed the MCU version from MX or from HA?
[MTCD Android Head Units General] julien_blanche:
i have installed MX MCU, do you think problem is related with MCU or ROM ? If it is rom related, can use old radio apk in new rom ?

I think it is rom related because i was running MX rom with no issue, after upgrading to HA rom radio reception is gone.
[MTCD Android Head Units General] Floston:
install MCU 2.65 from MX !!!
[MTCD Android Head Units General] babak_1274:
MCU

Hey Friends.

I have 2016 KIA Cerato and the version of the Head Unit's MCU is KLD.

My car has a voice command key on the driving wheel visch is not rcognised by the head unit and does the MUTE fuction the same as Mute key there.

Is there any solutions for this problem?

Is it depend on the MCU?

And also the built in CAR microphone is not working anymore.

Any comment?
[MTCD Android Head Units General] ikerg:
If you have can bus box (keys are predefined) use mtcdtools to reassign the function.

If not using any can bus box go to steering wheel learning app to redefine tour keys

For the microphone issue...do you have connected your microphone to the unit instead the external microphone that comes with the unit?

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[MTCD Android Head Units General] babak_1274:
My Head Unit is already have in the canbus list "HYUNDAI/KIA Simplified".

And all the Buttons working perfectly but the voice command.

I didn't understand your comment very well.
[MTCD Android Head Units General] bettuccio:
, I already have the rear camera attached behind the reverse lights that only activates when I put the reverse. Now I would install a front camera, I plugged the power from a 12 volt DVBT receiver I got into the black wire and red wire dashboard for a try. I noticed that the wire warms a lot. That's because it's always live? Tell me where I should take the correct 12 volt power. However, the rear lights are already engaged with the rear camera. Another question: how can I fix the small cam in front of the front grille of my car without holes?

---------- Post added at 02:32 PM ---------- Previous post was at 02:19 PM ----------

I can confirm that the crashes of Radio, Avin, are still due to PawerAmp. They have never been corrected. I uninstalled PawerAmp and now they start at the first shot.
[MTCD Android Head Units General] c.Aurel:
parking sensors display issue

I have Wiston W2-b5626 PX5 head unit + can bus decoder installed on Citroen C4 II exclusive 2012.

Since update of MCU to MX_mtcd_2.59 and ROM hct_PX5_6.0(20170731), I have a regression(before I used MX_mtcd_2.55). Issue is still present with firmware MX_mtce_2.65:

parking sensor display is working as opposite :

I have one red line when obstacle is far

I have red line + yellow lines + green line when obstacle is close

this should be

one red line when obstacle is close

red line + yellow lines + green line when obstacle is far.

do you have same issue and any idea if I can configure it?

More over front parking sensors are not enabled when first gear is engaged (they are working only with reverse gear). this was working on my car and original Citroen head unit but no more since I this android head unit. I read that lot of Citroen users have same issue

is someone has a contact who is developing firmware MX.
[MTCD Android Head Units General] bettuccio:
I have your own car and the same PX5 MX. I have your own problem always! of the loss of front parking sensors when approaching an obstacle. Unfortunately I can tell you that there are no software solutions for this. I have changed various firmware and various Mcu without result. We have to keep the sensors as they are! For lines go to factory settings and see if there is an entry to disable or enable. I do not have this problem.
[MTCD Android Head Units General] hollboot:
Thank you very much my friend:laugh::laugh:
[MTCD Android Head Units General] joeherlev:
I have tryed to get my mini OBD2 adapter to connect to my headunit..

Under Bluetooth it's shows.. But When I hit YES to pair and connect.. Then nothing happens?

Any fix?
[MTCD Android Head Units General] ikerg:
Button actions are predefined into can bus...so they are hardware programmed.

There is a tool (mtcdtools) to assign new actions to buttons.

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---------- Post added at 08:07 PM ---------- Previous post was at 08:06 PM ----------

Do it under Bluetooth app and not under settings > Bluetooth

Ensure you have the correct pin on the head unit set up prior to pairing

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[MTCD Android Head Units General] Mau2012sim:
I here and there read about some people's problems that occur after they update the ROM. Things like losing radio reception, bluetooth issues, button functionality issues, or apps that don't work after the update. I can't get rid of the impression that there are minor differences between the different versions (HA and HCT).
[MTCD Android Head Units General] typos1:
There are minor differences between ROMS but none will affect apps like radio BT etc. MCU updates on the other hand might.
[MTCD Android Head Units General] warata:
Has anyone succeeded in ADB connection without ROOT(via USB or WI-FI) of PX5 and how?
[MTCD Android Head Units General] arti777:
steering wheel

No, all the same time, nothing has changed, sometimes returns after 20 minutes to normal work.
[MTCD Android Head Units General] ab1702:
DAB....

Has anyone any idea why this could be happening.. My dab has an ok reception, I'm using a glass mount antenna with my unit and the dab box that it came with which is one of the square ones. I've been trying to figure out why the signal isn't very good as I've had an android unit before with dab and it was fine. I've found out that when I take the headunit out of the dash the signal is a lot better but as soon as I put the headunit back in the dash the signal goes back to what it were before. I'm confused as obviously the glass mount antenna should be receiving the signal so has anyone any idea why removing the headunit from the dash is making a difference?
[MTCD Android Head Units General] SkyBeam2048:
Make sure all cables are straight and not bent too much. Perhaps the coax cable connecting your antenna is bent to a point where it shorts out or splits internally. Some HU have just minimal spacing behind them so you need to use angled cables.

Also make sure the cables connecting your external DAB box are not bent too much. You might have one of these boxes with 8-pin connector on it.

I had this one too and it did not work at all (DAB+ app displaying "connecting"). As sending it back was economically impossible I ordered another one. The vendor asked me which radio I told him it's a PX5 device with Android 6. The cable he delivered was another one than the initial vendor. The box was the same. It looks like cabling for Android 5 and 6 are different, I guess it's more about PX3/PX5 devices. Anyway also my second box didn't work fine. So I finally just ordered the joying DAB+ USB-stick.

This one now works almost perfectly. However reception was still not sufficient for me. I never installed the window mount antenna, I don't like them. In fact I tried to use the glass antenna right under the center instruments in my car which sort of worked, but was about the same quality as the mini-antenna with magnetic mount delivered with the USB stick.

Also many people fail to correctly deliver contact to car ground to the antenna which leads to worse reception. Most glass antennas come with a copper adhesive which has to be glued onto the chassis. Eventually isolating paint will have to be scraped off before which is also a point why I don't like it. I don't want to scratch off anti-corrosion protection just to ground the antenna.

My Subaru had a powered antenna with separate power line (no phantom power) and the antenna did not filter the DAB+ frequency range but also it did not amplify those frequencies. I have used an amplified frequency splitter but still I was not satisfied with reception. I went for an ABB 3785.01 antenna with +20dB amplification on DAB+ frequencies and also installed dedicated cables for FM, DAB+ and GPS. Also for GPS I had mounted the GPS mouse right on top of the radio inside the dash which worked surprisingly well. But now my DAB+ reception is just much better.

Overall I wasted lots of time in different cabling, splitters, connectors an finally dropped them all for a good rooftop antenna replacement which was even cheaper than all the gadgets I used to avoid replacing the rooftop antenna. Moreover the antenna replacement was almost plug-and-play and even for me doing it the first time it took me about 2 hours only.

So if I can give an advise: Install a decent amplified rooftop antenna which is designed for DAB+. You will have much more fun with DAB+. If you don't then you will be complaining about bad reception and audio drops over and over again. So I strongly advise to solve the problem properly and once forever. So don't waste time and money on the wrong equipment. Just do it right.

And yes, it really makes that much of a difference between a bad antenna, an average antenna, a glass antenna and a decent rooftop antenna.
[MTCD Android Head Units General] Bose321:
I've ordered a 6R0035501D (OEM VW DAB and FM antenna). Do you guys know what voltage the FM cable needs? I know it needs a phantom power, but I see 12V, 14V and sometimes 16V phantoms. I tried to look for it, but no idea what this one needs. Would it hurt to try a 12V one?

Also, does the DAB cable also need power? And if so, what voltage as well? Can't seem to find any documentation on it. The window antenna for DAB is horrible.