yashsingh1/xdaforums huggingface dataset:
[MTCD  Android Head Units Q&A] Fr4gGie:
Hello,

I got an MTCD unit from KDL.

See:

hxxp://puu.sh/q7n6Z/0d877d8d14.jpg

I can't get my 3G to work. got an E1750 from Huwaei.

I tried installing SuperSU but it says it's not rooted, i think it is..

Any way to get my 3G working?

SuperSU + PPPWidget was my thought process, but maybe it's simpler..
[MTCD  Android Head Units Q&A] masri1987:
So i received a 800mb file from Xtrons, they claim it's stock MCU and ROM (not sure on the date etc for them)

Two files are in the zip, a update and a dupdate...

Which one is the MCU and which one is the ROM?

both are nearly the same size too
[MTCD  Android Head Units Q&A] karmacop:
Does anyone know how to fix the issue with using alternative music apps and it not turning off the radio? For instance, i want to use Poweramp instead of the built in music app, however if i am listening to radio and then switch to poweramp and start a song, the radio keeps on playing.
[MTCD  Android Head Units Q&A] Serge_SM:
Poweramp player control with steering wheel controls on Android 5.1.1 headunits (MTCD

I have a few messages. I can not leave the link.

Look at 4pda.ru

JY SWC Service - Poweramp player control with steering wheel controls on Android 5.1.1 headunits (MTCD)
[MTCD  Android Head Units Q&A] karmacop:
Thanks Serge, I dont speak Russian unfortunately, however i found one post on there referencing the Headunit app by Petro. I did try the app but it didnt fix the issue with not turning the radio off when playing music via poweramp.
[MTCD  Android Head Units Q&A] alex.o:
I've experienced this issue while using google play music as well. I'm hoping to find a fix.
[MTCD  Android Head Units Q&A] karmacop:
Hi Alex, I did infact get a resolution to this, however I dont think it will help for you I'm afraid.

A guy pm'd me an app that sets Poweramp as the primary music player and adds it to steering wheel controls, however the app is specifically for poweramp unfortunately. However, if someone has managed to make it work with power amp, i cant see a reason why it couldnt be re-worked for Google Music?
[MTCD  Android Head Units Q&A] alex.o:
Thank you!

Another issue I have is the audio stopping when I put the car in reverse or open apps like google maps. Is there a way to keep the audio on while in reverse and while using google maps?

Also, is it possible to adjust the volume of the external mic?
[MTCD  Android Head Units Q&A] hugovw1976:
MTC_RK3188_REV0.3 Documentation?

Some one have documentation of MTC_RK3188_REV0.3 board?

I buy a unit without any Micro SD card slot, the main board have connection for SD and GPS sd slots, I can made a SD boards, right now I map the connectors pin to a board pins but I need to know wich pin correspond to wich signal for SD card.

Connectors:

Signals to main board:

Main Board:

SD signals:

Or if some one have a similar unit and can be map the pins of the connector to a SD card slot I appreciate.
[MTCD  Android Head Units Q&A] SCRPD:
Has anybody else had this problem?

When I have my headlights/hazard/signals on I get a very faint static noise from my speaker each time a light is turned on. I checked my aftermarket amplifier ground & it's dead silent, I tried regrounding the head unit directly to my chassis & I still get noise. Online I read it might be EMI interference caused the voltage instability & I should put a filter on the "B+" line on the harness.

Does anybody else have this problem?

Thanks!!
[MTCD  Android Head Units Q&A] Samoawbc:
I had the same problem on my Focus mk3. I have a seperate Amp and an active Sub.

The Lights are not powerd by a plain 12v DC Voltage, instead they powerd by an PWM modulatet Signal to increase the lifetime of the lamps.

I get rid off it by carefully install the power and the signal wires as far as possible from each other.
[MTCD  Android Head Units Q&A] SCRPD:
I also have an MK3 focus (2014 ST1).

Which power & signal wires? The Headunit or the aftermarket amplifier?

Thanks for the reply! :)
[MTCD  Android Head Units Q&A] Samoawbc:
The Aftermarket Amp.

I Installed mine in the glovebox, it's a little Amp. So I had to run a power cable from the battery in the glovebox.

I also Installed an emi Filter in the power Cord of the head Unit, but this dindt solved the problems complete.

Maybe you can also trie to turn the gains of your aftermarket amp as low as possible. In the factory menu of the head Unit you can increase the output of the RCAs, look under the Tab "voices".
[MTCD  Android Head Units Q&A] SCRPD:
My amp is in the back under the false floor. I'll try and separate the signal & power wire tonight & see if that helps.

I also have an EMI filter coming in the mail, I hope that helps some.

I'll try messing with the RCA voltage output & amp gains too.

Thank you!!!

:D

EDIT:

Well I tested everything tonight & here is what I got.

RCA Voltage - "Voice" in factory settings @ 20 & device volume at 29 playing a 60hz track sends 2.2 volts to the RCAs (If you using an amp I suggest you aim for at least 2 volts & adjust amp gains with a DMM and an appropriate test tone accordingly "Example: 50 Watts RMS x 4ohm load = 200, square root = 14.142135" ).

With RCA voltage set and gains adjust correctly I will get a faint buzzing noise with headlights on. So I moved onto the power & signal wire separation.

I moved to the back & separated the power & signal wire as far as they could go, nothing changed.

Only other thing I can think of would be the EMI filter. I hope it works.
[MTCD  Android Head Units Q&A] Samoawbc:
It took me about a week to solve the hissing.

I also installed a Ferrit-Magnet Filter over the RCA Cables, but in the end i cant say what action solved the problem.

The RCA and the Power Cable to you Amp a running at different sides to your trunk? For example RCA on the driver side and Power on the Codriver side?
[MTCD  Android Head Units Q&A] SCRPD:
Power goes down the drivers side & RCAs go down the middle.

I'll pick up some snap ferrite cores locally too, for the RCAs & the B+ line.

Hopefully, it works.
[MTCD  Android Head Units Q&A] alex.o:
Is there a way to keep the music playing when the reverse camera is on or when opening other apps like google maps?
[MTCD  Android Head Units Q&A] transitoyspace:
If its A2DP, i dont think.

Otherwise try pressing back or home and see if the apps stops. Otherwise the have done poor coding.
[MTCD  Android Head Units Q&A] alex.o:
Its when I'm playing music from apps on the radio itself. When I put my car in reverse the radio app stops playing. when I open google maps, the radio stops playing. this is the same for google play music and stitcher installed on the radio.
[MTCD  Android Head Units Q&A] CadillacMike:
did you check the Driving Settings or something like that? On my Joying there is definitely an option somewhere in the settings to keep the music playing while in reverse.
[MTCD  Android Head Units Q&A] alex.o:
Thanks! I found the setting to allow music to keep playing while in reverse. I still can't figure out why music from any app or the radio stops when google maps opens. I don't experience this issue with Waze, so I'll just use Waze for now.
[MTCD  Android Head Units Q&A] CadillacMike:
mine would lower the volume of the music anytime I clicked any option on Waze. But I dont like the audio prompts from Waze or Google Maps or any GPS, so I went through the settings of the individual GPS apps and turned off any audio settings
[MTCD  Android Head Units Q&A] marganron:
i have this problam when the Waze audio promts for direction, the music from Radio/CD is lowerd but it doesn't say nothing. But when i listen to Spotify it works perfect!
[MTCD  Android Head Units Q&A] karmacop:
I'm having the opposite problem with Sygic, i cant get it to out put any sound!
[MTCD  Android Head Units Q&A] Dp78:
I have the same problem ... The screen has a very low brightness, and reflections. A daylight is almost impossible to see properly ... I hope to find some solution through software.
[MTCD  Android Head Units Q&A] marganron:
HUAWEI 3G dongle problems. is it just me? it takes some time to start working, and sometimes it stop working.
[MTCD  Android Head Units Q&A] snake_08:
anyone can use the sync ford in a mtcd 5.1?
[MTCD  Android Head Units Q&A] karmacop:
Id like to know this as well!
[MTCD  Android Head Units Q&A] snake_08:
Here he accepted the command, open the application, understand what was said, but no sound.
[MTCD  Android Head Units Q&A] ibdegen:
FYI, my MTCD could not access more than 1 satellite if any at all with the Mercedes-Benz stock shark fin antenna. It worked perfectly with the COMAND navigation system and because it is MB, I presumed it was high quality. I had to replace it with the cheapo antenna that came with the unit. I'll have to find a shark fin cover to restore the original MB look.

Also, can you provide a link to the app that makes PowerAmp the primary music player?

Thanks in advance.
[MTCD  Android Head Units Q&A] nixfu:
IF you are using the carmod launcher, it has settings inside it to control the brightness. It will automatically adjust to whatever points you set it for daytime and nighttime.

That is what is causing it I believe, it is turning it down when it starts up the launcher.
[MTCD  Android Head Units Q&A] f5f5f5:
DAB+ via 60p connector instead of USB?

Using the two USB back ports already for dashcam and 3G dongle - and not too fond to permanently use the front USB - I'm wondering if it's possible to use port 3 of the 60p socket (marked DAB+) somehow. Has anyone experimented with this? What kind of DAB box / antenna can be connected there?
[MTCD  Android Head Units Q&A] SirOrigami:
How to enable Developer Options in this UNIT?
[MTCD  Android Head Units Q&A] lukas.elk:
I have an MTCD 5.1.1 KGL unit and it turned out that it doesn't support any DRM. Is it possible to add Widevine DRM support? I need it for digital TV streaming.
[MTCD  Android Head Units Q&A] zirt57:
I would also like the app that changes the default music player to Poweramp as this is the music player I use on all my Android devices.

Thanks in advance,

Jeff
[MTCD  Android Head Units Q&A] marcmclauchlan:
Buzzing noise on LM 5.1.1 unit with Headlights on..

Hey guys, new to the forum, thanks for all the hard work in rom development and testing. I've got quite a loud buzzing noise through my speakers, only when my side/headlights are switched on. My unit is an MTCD LM 5.1.1 1024x600 (A-Sure Volkswagen variant).

So far Ive tried (with no success)...

Running a direct ground from the unit casing / input grounds to cars bodywork..

Flashing 2 other LM MCUs (from recent forum post)..

Flashing latest joying 1.9 firmware..

Checking all connections for anything loose (standard head unit is fine also)..

Disabling LCD brightness adjustment with headlights in factory settings..

Disabling button LED control with headlights in factory settings..

I'd apppreciate anyone else who's had this issue or similar could share any fixes??

Cheers
[MTCD  Android Head Units Q&A] marchnz:
What is make/model/year of car, does it have gas discharge headlights (HID)?
[MTCD  Android Head Units Q&A] marcmclauchlan:
Hi, Its a 2008 VW Golf Mark 5 with standard headlights...
[MTCD  Android Head Units Q&A] Al Ferro:
Hi, i own a MTCD radio head unit and i noticed that the screen doesn't make any sounds when touching it, i already checked system volume level and settings>>sound>>keytone and there is a check mark for it..... any ideas?
[MTCD  Android Head Units Q&A] yiatsou:
Hello ,

I have installed on my opel astra J an android 5.1.1 head unit with rockchip 3188 1GB RAM. I have the following problems and I would appreciate any help:

1) I have lost the warning sound (forget key)

2) I have lost the warning sound forget light on with key on

3) I have installed the sygic premium but I realize that the response is low and sometimes crashes

4) It was supposed to have 16GB of ROM but it has only 2 and separately 12GB but I cannot install any application on that.

5) When I open the door the steering wheel and climate lights are turning on except the radio which are turning on when I turn the ignition switch

Sorry about all these questions ,

thank you in advance
[MTCD  Android Head Units Q&A] guimolle:
Originally Posted by guimolle

Hello, i have a MTCD_MX_V1.93a_1 device Android 5.1 A5637 for my Peugeot 508 car.

But since i have change CanBus protocol in advanced setting by No Canbus my device don't restart (No picture on the screen) !

I have not physical button.

Maybe somebody can help me please ?
[MTCD  Android Head Units Q&A] JCBomb:
Is there anyway to join the paltry 2gb partition with the 14 gb partition to get rid of that stupid "out of space" warning that comes up every two seconds after clearing caches?
[MTCD  Android Head Units Q&A] makes2068:
Got a question too...

Using a erisin 3015 unit. Everything is o.k but...

The screen is to bright, without color, without contrast, a bad black level and not really sharp.

Coming from a JVC AVW740. The screen there was much better readable.

Only my unit?

Brightness low, contrast apps tested. Without success.

Any setting possibilities in factory settings?

The only thing that is installed is a rear camera including connection to reverse signal.

The picture from the camera is also very bad.

Getapped and getalked with 6603
[MTCD  Android Head Units Q&A] Blaze Falconburger:
I am looking for a replacement for my original MTCB dual core for BMW E46, but how do I know which of the new units are MTCD? Can anyone confirm if the sound quality is any better from the earlier MTCB/C units? This was the major downfall for me..
[MTCD  Android Head Units Q&A] typos1:
What your MTCB is broken ?
[MTCD  Android Head Units Q&A] Blaze Falconburger:
Yeah I tried to go back to stock yesterday and no success - I've wasted enough time on it now and I have gone 1 month without sound in the car, so I'll just replace it and forget
[MTCD  Android Head Units Q&A] doitright:
Whether or not it is MTCD is irrelevant. Look for a unit with Intel SoFIA C3230RK CPU and 2 GB RAM. You will find two variations on these specifications; Joying and... everything else (MTCD). There IS NO compatibility between Rockchip/ARM MTCD and Intel MTCD. Joying seems to make up a large proportion of all head unit sales, possibly more than half, so not much benefit to choosing one over the other.
[MTCD  Android Head Units Q&A] typos1:
Think I said in another thread - Klyde have octacore MM units out with 2GB RAM.

Eonon and Pumpkin also sell a hell of a lot of units, mainly Klyde, have you seen any actual figures ?
[MTCD  Android Head Units Q&A] doitright:
What I have to go by is what I see in this forum, and HERE, there *appears to be a majority of Joying.

Of course, this is an english speaking forum, and predominantly visited by certain geographical areas, I'm sure that this observation isn't universally true -- there could be a very different picture if you look at actual purchase patterns.

In the end, however, you really can't count on manufacturer support for these products, which means that you're looking for "enthusiast" support, which means that all that really matters is what is common among other enthusiasts that you are **able to find** -- I.e., HERE.
[MTCD  Android Head Units Q&A] typos1:
Actually, looking at your post again, I think you meant Joying sell most MTCD units but I took it as meaning MTC units generally :)
[MTCD  Android Head Units Q&A] makes2068:
Got erisin 3015 with Malaysk custom Rom. Sound is awesome.

Getapped and getalked with 6603
[MTCD  Android Head Units Q&A] mtmurat:
I have a MTCD unit for my Toyota Highlander and generally, I am very happy with it. It appears to be a Joying Unit that I got on Amazon (I suspect it was bought from them and resold), so officially Joying is not offering any support. I've learned that I can update the MCU to the newer Joying versions and probably will soon, but wanted to share the glitches that I am noticing with this version and am curious if anyone knows if later revisions (there are several) resolve any of these.

MTCD_JY_V1.63_1

June 12, 2016

Android 5.1.1

Kernel Version: 3.0.101+

root@chun-book #28

Wed Jun 22

Build number:

rk3188-userdebug 230622016

Observed glitches:

-Seller advertises that this unit does Apple Car Play, and mirroring for Apple AND Android devices- None of this seems to work at all

-"Shutting down" message after restarting car (Known issue I have read about here)

-Radio loses presets if the HU is restarted

-Music app- fairly solid, but displaying of album art is hit or miss (when played from SD or USB)

-Startup- appears to boot up within a few minutes but clearly much more is going on behind the scenes, best to not touch anything for at least 5 minutes, otherwise there will be severe lag and apps will start crashing. (Note: I have a Tmobile Syncup Drive LTE hotspot in my OBD port, so wifi to the HU joins quickly and is fast)

-No support for my factory JBL subwoofer. Music is fairly good otherwise, but would be nice if the sub worked.

I'm combing through all these threads hoping to get educated on how all this works. Thanks for everyone's contributions here. Thoughts and coments are welcome.
[MTCD  Android Head Units Q&A] CadillacMike:
I was thinking about getting that SyncUp, you like it?
[MTCD  Android Head Units Q&A] mtmurat:
T-Moble Syncup Drive

Yes, I love it. My head unit connects to it immediately, every time, and it's fast. The phone app and associated data that it keeps is nice too- if you drive for business, its a must- it keeps a log of all your trips and you can tag them for business use.

I was concerned about data- base plan is 2GB- but I only used less than 500mb in the first 25 days- I use Google Maps or Waze every time I go anywhere, and my Google apps keep themselves updated. Keep in mind that a huge list of streaming sites like Pandora and Iheartradio do not count against any of your data minutes.

My deal in Houston was I got the device for free (normally it's $149) so long as you keep it for 2 years (you pay monthly on it and they reimburse the payment each month), and they also have a special on the data, was $10 per month for 2GB.

Before I would hotspot to my iPhone 6S- a real pain in the rear cause you had to turn the hotspot on and off on the phone each and every time you wanted to connect. This Syncup drive box is also way faster than my ATT iPhone hotspot.:good:
[MTCD  Android Head Units Q&A] CadillacMike:
See, I would do it for $10, they keep quoting me $20
[MTCD  Android Head Units Q&A] mtmurat:
$20 was the price I was quoted on the phone. I went into the store and they gave it to me for $10, citing a promotion. But honestly, I'd easily pay $20 for the convenience of this. I commute 45 minutes to work 2-3 days a week and having Google Maps and Pandora going is awesome.
[MTCD  Android Head Units Q&A] CadillacMike:
looks like I am heading into a store...
[MTCD  Android Head Units Q&A] f5f5f5:
Does anyone have some information on what could make the element lights (RGB leds under buttons) blink for a couple of minutes after starting the car? Here's what happens:

- They blink only when I turn my car lights on (naturally, the element lights are turned off when the car lights are off)

- They blink in the same colour as the element settings (as opposed to bright white when updating the MCU firmware)

- They blink with a slow steady interval at first, with the interval becoming shorter until the lights are permanently turned on

- They start blinking after the "lollipop" boot screen

- This happens with both Malaysk and stock firmware, LM MCU firmware 1.98c

Any thoughts / hints would be highly appreciated.
[MTCD  Android Head Units Q&A] masri1987:
i bought it, unfortunately the actual wifi obd2 functions that would be utilized by torque or dashcommand aren't available it seems. I've tired everything to get it to connect and nothing

I got mine for 120$, and a free line of service as part of their deal. Not bad overall but I NEED THOSE OBD2 functions!! Mainly the proxy and data port#

I have had wifi obd2 readers in the past that worked just fine with those settings
[MTCD  Android Head Units Q&A] mtmurat:
TMobile Syncup Drive

I knew this never talked to Torque and similar apps. The convenience of the WiFi, tracking of trips and GPS monitoring of my car makes this totally worth it. I have a separate WiFi OBD2 sensor I can replace it with if I need to look at those data. These things are less than $20 on Amazon.

I read somewhere that somebody makes a splitter for the OBD port, allowing 2 devices to be plugged in- You might research that.
[MTCD  Android Head Units Q&A] masri1987:
that sucks man, itreally does, t-mobile doesn't know jack ish about this device , ZTE says to ask t-mobile and t-mobile keeeps referring me to mojio

It has a ELM 327 PCB , so theoretically, with the proper proxy and data port settings, we can direct dashcommand to look for the obd uniit.
[MTCD  Android Head Units Q&A] mtmurat:
Mojio

I've found that Mojio has been around for a while and they have a few independent apps that do about the same as the TMobile one. If you find a way to make this work with Torque, please share. I'll do the same. Good luck!
[MTCD  Android Head Units Q&A] friedricebob:
You could try Wireshark to listen to wifi while looking at the obd2 data in its native app? This may or may not get you the port for odb2.
[MTCD  Android Head Units Q&A] masri1987:
can you give me instructions? lol
[MTCD  Android Head Units Q&A] javiermi:
Hi

I wondered if anybody has tried this:

The motherboard seems to have 3 USB Ports, but only 2 is used

I suspect all you need to do is connect a USB cable to this unused port and presto!, you have another port to use

Any ideas?
[MTCD  Android Head Units Q&A] Eljupo:
Handsfree calling quality

Hi everybody,

How is your handsfree calling quality with external mic?
[MTCD  Android Head Units Q&A] Tback119:
My external mic has a lot of echo. Maybe I just need to relocate it.

---------- Post added at 10:40 PM ---------- Previous post was at 10:31 PM ----------

Can anyone solve my problem Sorry if this is a repeat question, I am new to this forum and trying to figure it all out. I have a" MTCD_LM_V2.00_1" head unit from Pumpkin. I contacted pumpkin and they sent me the link to download the MCU file. I also downloaded, from Malaysk, the file DUPDATE 5.1.1 1024x600 . I installed on a micro sd card that I formatted twice (this is the second sd card I tried). When I try to instal I get the message

"Installation hctextcfg start.

Updatehctextcfg aborted.

Installation mcucfg start.

Update mcucfg aborted.

dmcu.img is error!

Update mcuimg fail.

Then it reboots.
[MTCD  Android Head Units Q&A] typos1:
Sounds like the MCU file is corrupt.
[MTCD  Android Head Units Q&A] Floston:
How can I make a screenshot in HU without installing additional software ?

p.s. WITSON B5730 (MTCD MX V.2.40_1)
[MTCD  Android Head Units Q&A] typos1:
There should be a screenshot button in the pull down meni.

You dont have a Witson, theres no such thing, Witson are retailers only, to find out what your unit is go to settings/about device, the 2 or 3 letters after "MTCD" will tell you what device you have.
[MTCD  Android Head Units Q&A] Floston:
typos1

I also wrote that my HU is MX

And the name of the model, so it was clear what kind of mechanical buttons has device
[MTCD  Android Head Units Q&A] typos1:
Oops, so you did, sorry :-/
[MTCD  Android Head Units Q&A] Floston:
typos1

Please, tell me a topic with my device (MCU / Firmware update, etc.) - Not a general MTCD theme ?

Search does not anything show
[MTCD  Android Head Units Q&A] typos1:
I m not sure what you mean, but AFAIK MTCD units are a bit like MTCB/C ones in that even though theyre made by 10 different companies theyre really all the same inside and the software is interchangeable (Intel Sofia units accepted) so a general thread should help you.
[MTCD  Android Head Units Q&A] Floston:
How can I save MCU from HU ?
[MTCD  Android Head Units Q&A] typos1:
I m pretty certain you cant but I have MTCB/C units so I m not 100% sure, maybe start a new thread ?
[Droid Ultra Q&A, Help & Troubleshooting] MArtyChubbs:
Phone is borked. Need newest firmware to RSD back to stock.