yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] typos1:
Only KGLs have that stupid dialler, try a ROM from KLD, JY etc or using the dialler from one of them on a KGL ROM.

---------- Post added at 08:47 PM ---------- Previous post was at 08:44 PM ----------

As its a 7" you should be able to pay extra for 1024x600 resolution (6.2" are only availane in 800x480, sizes 7" or larger are available in 1024x600 as well).

---------- Post added at 08:49 PM ---------- Previous post was at 08:47 PM ----------

A couple if people have extended it before, but your ll have to do a thread search for them, but its quite easy you just extend the wire and maybe attach an sma connector and then a wifi antenna.

---------- Post added at 08:51 PM ---------- Previous post was at 08:49 PM ----------

"HuiFei" is a KGL brand name so technically only KGLs are HuiFeis, me being picky, lol.

That homescreen is used by JYs as well as KYD.

---------- Post added at 08:56 PM ---------- Previous post was at 08:51 PM ----------

Its linked to both the MCU and Android, all versions have the capability, KGL, KLD, JY, RM etc but not all cars are supported and not all supported cars use the same app, there is a difference between VWs and BMWs for instance. This also applies to the universal units as well because the basic software is the same for all. When you change car type in factory settings with some supported cars a different app appears, also with some supported cars no app appears, it depends how "supported" the car is.
[MTCB Android Head Units Q&A] Jettaboi2k:
Reply

My backup camera comes on before system boot.
[MTCB Android Head Units Q&A] CARRisma:
OK, as far as I can tell, the antenna on my 2000 Honda Prelude does not have a power source, it just has the signal wire and a ground. So I assume I need a booster rather than a power injector? And from what has been said previously, most boosters are small boxes rather than cylindrical. As there's confusion between boosters and power injectors, is there another way to tell them apart other than their shape? Any links to tried and tested boosters?
[MTCB Android Head Units Q&A] coolxal:
How does the rear view camera work? I have the Joying.

I had a wireless rear view camera with one transmitter on the camera in the back and one receiver connected to the rear view mirror (with built in monitor).

When I go into reverse, the mirror gets a signal from the receiver and shows the camera feed. I tried plugging the video out on the receiver to the REAR CAMERA IN on the head unit but nothing shows when I go into reverse.

Does it not show the camera feed when the REAR CAMERA IN receives a signal?
[MTCB Android Head Units Q&A] zorantoma:
mtc-volume.apk

For my taste a great new apk from our Russian frieds. All credits go to MVG-V70 at 4PDA forum.

• staging regular player on pause for incoming / outgoing calls;

• A safe turn-on volume, in excess of a predetermined volume;

• an increase in the volume depending on the speed. Adjustment steps are configured as in the mtc-service;

• Set the volume levels of correction for each full-time applications. When you switch to the application volume will be increased by the amount of correction, and on leaving reduced. So I decided the problem of insufficient volume applications "Music" compared to the "Radio";

• Changing the brightness of the screen time of sunrise and sunset. Adjustable brightness levels. Time of sunrise and sunset is determined automatically with the possibility of correction. The brightness is also adjusted when you exit the rear view camera;

• clean shutdown Navitel when you turn off the radio. Broadcasted intent under which service Navitel goes to reboot.
[MTCB Android Head Units Q&A] CARRisma:
Yes, mine works too, but the message is annoying. I suspect it's an issue with the 3G dongle. Do you have a photo of your 3G dongle?
[MTCB Android Head Units Q&A] typos1:
Which end of the antenna are you looking at ?

---------- Post added at 11:43 PM ---------- Previous post was at 11:39 PM ----------

It has to detect reverse gear has been selected so you need to connect the reverse gear wire as well.
[MTCB Android Head Units Q&A] coolxal:
The wireless receiver only has VIDEO-OUT and 12V power IN. Where do I connect the reverse wire? The fuse box?
[MTCB Android Head Units Q&A] BloodBlight:
I have tried a multitude of changes (including switching to a different ROM). Regardless of what app I use (built in MTC or Exposed), whenever I click the back button on my steering wheel it stops the music (in Google Play, Spotify and others) and next track does nothing at all.

It does show previous and next actions for the pop-ups it just doesn't do it.

If I create a tasker event it SOMETIMES does this, but usually works. Sending key events works perfectly though:

https://developer.android.com/reference/android/view/KeyEvent.html#KEYCODE_MEDIA_NEXT

Ideas?
[MTCB Android Head Units Q&A] pants001:
I had this once, ......when you say stop, do you mean pause?

I think theres a setting for Play on pause or similar....uncheck that and controls go back to normal
[MTCB Android Head Units Q&A] BloodBlight:
I THINK it is pause. I will check, I think I have that disabled already, but I will go check.
[MTCB Android Head Units Q&A] typos1:
No, the reverse light power supply, I would think your camera is also connected to this.

---------- Post added at 12:30 AM ---------- Previous post was at 12:26 AM ----------

Thats because whenever you click "back" youre going out of the app and closing it down, click "home" instead and it keeps the app open. This is standard Android stuff, in fact standard in most OSs.

I m assuming youve set the "back" button on your SWC to the "back" button on your headunit.

What are you expecting "back" to do ? Or have I missed something ?

EDIT: I think you meant "previous" not "back" ?
[MTCB Android Head Units Q&A] BloodBlight:
Sorry, wrong back button. This is the media back (previous) button on my steering wheel, not the application back button. This is some sort of an issue with the XposedMTC Module.

Here is a video of the issue:

https://www.youtube.com/watch?v=kyDtm6sWJg8

---------- Post added at 05:54 PM ---------- Previous post was at 05:47 PM ----------

Just checked, I don't have those options. I think those are in the CarService apk that I don't have installed at the moment. Here is a video of what I am seeing:

https://www.youtube.com/watch?v=kyDtm6sWJg8
[MTCB Android Head Units Q&A] agentdr8:
If the media player you are using is not either Poweramp or PlayerPro, then it will only send generic media intents for control; namely ACTION_MEDIA_BUTTON, with intent extra of KEYCODE_MEDIA_NEXT/PREVIOUS. Not all players respond to those (although I would imagine Google Music should). Some use the com.android.musicservicecommand intent, and others something entirely different.

You can try Car Service, and see if that sends the proper intents for the player you're using.
[MTCB Android Head Units Q&A] pants001:
Your right, ive checked another thread i replied to and that was the issue i had with CarService....and it was the Next button kept pausing my JetAudio player. I stopped using that app as 1/2 the time it didnt load up at all.
[MTCB Android Head Units Q&A] BloodBlight:
I think I understand. But if I use the media controls in tasker they work just fine. It really seems like it is not sending the generic commands but rather something specific.

PowerAmp has a demo, I will try it with that real quick.
[MTCB Android Head Units Q&A] pants001:
You might be right here, After watching his youtube video, MTC is accepting the commands correctly as its showing the onscreen >> and << with the correct steering controls.

Try a different audio program to see if that behaves correctly.....JetAudio jumps to next track and previous ok with my controls......im not using framework though.

Ive installed directly from Play Store

https://play.google.com/store/apps/details?id=com.petrows.mtcservice
[MTCB Android Head Units Q&A] agentdr8:
What app did you set as your music player in XMTC preferences?

---------- Post added at 06:33 PM ---------- Previous post was at 06:31 PM ----------

MTCService is different from XposedMTC, even though some of the functionality overlap.
[MTCB Android Head Units Q&A] BloodBlight:
Google Play Music. Video is set to YouTube.

I have been setting the app in there and using the R/C key to switch between them.

PowerAmp worked perfectly! Google Play Music, YouTube and Spotify however do not.

It would be REALLY cool is the inputs could just be feed to tasker, that way we can build our own behaviour (like I don't want the app swap function).

Thanks for you help!!! I was worried my head unit was broken, definitely a software thing. :good:
[MTCB Android Head Units Q&A] agentdr8:
Glad you got it sorted. It's definitely not as ideal as it could be.

Interesting suggestion though; passing it to Tasker so people could define their own mode switching. Problem is, when switching between MTC apps and non-MTC apps, there has to be some other process that can handle audio output switching, since this is done via the MCU. Otherwise you could end up with multiple apps playing sound at once (e.g. Radio on top/behind Poweramp).
[MTCB Android Head Units Q&A] BloodBlight:
I don't know about sorted, but definitely identified. :) I still don't understand why it doesn't work with other apps. It seems like it should send the events using the "input keyevent 87" method as everything seems to respond to it. Then you don't need to track what app is active, I will test, but I think it even works with the FM app.

Seems like that the MCU switching could be exposed as well. Being able to control the MCU would be so awesome! Really that is already a problem as the FM controller isn't seen as a valid input by other apps and isn't muted when they start. I think the only real way to handle it is to tell the controlling app what apps are media, how to start/stop each, and then monitor for what app is active.

Google apps already do this at some layer, but I doubt the MCU stuff could be integrated into that.

agentdr8, Are you one of the devs?

EDIT: I was wrong, input keyevent doesn't work with the FM app.
[MTCB Android Head Units Q&A] coolxal:
Yea, it's wireless though.

The camera and transmitter are powered by the reverse light power.

The receiver in my dash is powered by the 12V cigarette lighter power.

That leaves me with the BACK wire on the head unit.
[MTCB Android Head Units Q&A] agentdr8:
XposedMTC and Poweramp Toast are my contributions to the RK3066 community here.
[MTCB Android Head Units Q&A] BloodBlight:
Awesome dude. You rock! :)

Are there any streaming apps you would consider supported?
[MTCB Android Head Units Q&A] Joaco:
Noob here. Can some one guide on how extract the dialer from a KDL ROM? Or point to where I can find one. Currently using coudus 4.4.4 v4.2 KGL ROM.

Thanks in advance.
[MTCB Android Head Units Q&A] abdoahmed79:
seprating mic KYD

in blutooth module there is mic+, mic-, connect to mic + locate and and remove jumber C102, that is all, huge improvement in call
[MTCB Android Head Units Q&A] Malaysk:
about 30-50 seconds .... depends on the installed programs

---------- Post added at 09:31 ---------- Previous post was at 09:29 ----------

firmware is done under all permits including parktronics and climate control 240-160 dpi

here looked like climate controls before and after 180 dpi

---------- Post added at 09:33 ---------- Previous post was at 09:31 ----------

I think soon
[MTCB Android Head Units Q&A] agentdr8:
What do you have in mind? If it's easy enough for me to figure out, I can add support for it.
[MTCB Android Head Units Q&A] gy_ro:
Printing problems

[MENTION=3590033]Malaysk[/MENTION] : I really like your roms, but have you tried to print with it? I'm missing the item "printing" in system settings. I tried installing 'Google cloud print' to get a connection to my google attached cloud printer, but it's impossible to print from eg. Adobe Reader. The Reader app keeps searching for printers but does not seem to find any. On my smartphone (Huawei Ascend P7) all works fine, so I think there might be missing something in your rom to make the magic happen. I did not try roms from other devs, maybe there are others that can check about this issue in other roms?
[MTCB Android Head Units Q&A] Malaysk:
Unfortunately I've never run this application 'Google cloud print' So while I can not help you with this problem
[MTCB Android Head Units Q&A] elcolombia17:
I use it on my bmw e38 and it works without boot up!
[MTCB Android Head Units Q&A] gy_ro:
It's the common way to print to the cloud via Google (kind of service). Can you tell me how printing is possible in one or another way? I (and probably others too) really would like to be able to print to the cloud in the "normal" way. Thanks for all your hard work anyway.
[MTCB Android Head Units Q&A] Malaysk:
unfortunately I do not understand very well English and sometimes just do not understand what I am asked :D Sorry.
[MTCB Android Head Units Q&A] gy_ro:
No problem, English is also not my native language.

I just want to be able to print, that's all. Maybe others can work out a solution too and after that you can implement it in your roms.
[MTCB Android Head Units Q&A] Malaysk:
No problem ... I'll try this program and try to solve it
[MTCB Android Head Units Q&A] gy_ro:
Thank you, you're the best. I hope you can make the magic happen (once again) :good:
[MTCB Android Head Units Q&A] zapan999:
[MENTION=456516]typos1[/MENTION] What do you mean by "When you change car type in factory settings"? you talk about changing the CAN bus type, or is there another options that i haven't found?
[MTCB Android Head Units Q&A] RaZi3L_:
Jenny Liang: sales@szklyde.com

Linda Chang: sales10@szklyde.com

Jacky: sales11@szklyde.com
[MTCB Android Head Units Q&A] Marius B:
Hi guys !

What time boot this unit ?

I ask Jenny and tell me 21 s . Another seler tell me 5 sec.

DKL is ok for manufactor ?

specification is the same.
[MTCB Android Head Units Q&A] Fattah:
Thanks for the great rom. Is it possible to get tomtom working on your ROM?
[MTCB Android Head Units Q&A] typos1:
The headunit needs to know that the car has been put into reverse, it gets this info from when you connect the reverse wire to the reversing light, if you do not connect it the headunit will not know you are in reverse.

Which will soon be an RK3188 community as well, as both KGL and KLD are about to release quad core RK3188 versions of these headunits that apparently will use the same software and also the same hardware (with the exception of the processor obviously)

---------- Post added at 11:48 AM ---------- Previous post was at 11:44 AM ----------

I think you would have to use the whole BT app, rather that just the dialler (sorry, I know I said the dialler a few posts back) or it may be easier to just use the KLD ROM, I would try that first, if you dont like the launcher you could then out the KGL launcher on the KLD ROM and failing that try using the KLD BT app on the KGL ROM.

---------- Post added at 11:52 AM ---------- Previous post was at 11:48 AM ----------

Could you also add an English translation to your post as it may help others too ? Thanks :)

---------- Post added at 11:56 AM ---------- Previous post was at 11:52 AM ----------

You go into factory settings (password 126) and change the car type in the CAN Bus settings.
[MTCB Android Head Units Q&A] gy_ro:
Google Translate ? ;)
[MTCB Android Head Units Q&A] RaZi3L_:
english or french forum? ;)
[MTCB Android Head Units Q&A] gy_ro:
I know, I just couldn't resist. Typos1 always responds with answers that are best for the thread, and I suppose that he knows I was jokeing. If everyone writes in his own native language, the thread would become a total mess. By now the thread is already huge, so it's best to stick to English. On the other hand, I understand the worries of non native English speaking/writing people. If I try to 'google-translate' the Russian forum, I don't understand what people are saying there too, just because of the literally translations in most cases. Writing and explaining things is also not always as easy as it looks ... (for native English speaking people).
[MTCB Android Head Units Q&A] gouttedo:
Salut,

Merci pour ta réponse.

Je possède un ERISIN ES9507 pour une mercedes W203.

http://www.erisin.com/erisin-es9507a-android-442-car-dvd-gps-mercedes-benz-c-class-w203-clk-w209-w163-w639_p520.html?number_of_uploads=0

Merci pour l'explication de mise à jour et récupération de la rom d'origine.

J'attends une réponse de ERISIN pour les commandes au volant, les informations via CANBUS....

Je suis retissant sur le fait d'utiliser POWER AMP et de perdre les instructions de WAZE (ou Tomtom).... Je vais tester avec une verion d'essai.

J'ai vu sur le NET le MCU KGL 4 en version 9 maxi... moi j'ai la version 8. Quelqu'un a t il un lien pour telecharger une version plus récente ?

Merci encore pour votre aide.

--------------------------------------

Hi,

Thank you for your reply.

I have a ERISIN ES9507 for Mercedes W203 .

Thank you for the update explanation and recovery of the original rom.

I expect a ERISIN response to the steering wheel controls , information via CANBUS ....

I retissant on the fact of using POWER AMP and lose the instructions Waze (or Tomtom ) .... I will test with a trial verion .

I saw on the NET MCU KGL 4 version 9 max ... I have version 8. Does anyone have a link to download a new version?

Thank you again for your help.
[MTCB Android Head Units Q&A] typos1:
Lol, yes people can easily use google translate (although its not perfect as you point out), I always put the translation and the English together so everyone can read it without having to open other pages in their browser.

Over on 4pda.ru you have to put the English in a spoiler and post in Russian, I ve also come across XDA mods who chime in and tell people to ONLY post in English. :)
[MTCB Android Head Units Q&A] ktibor69:
How is the camera connecting to the HU? Which type HU do you have?
[MTCB Android Head Units Q&A] typos1:
I think you could just connect a wire to the end of KLD's short antenna and then an sma connector on the end of that which you can screw an antenna to. The JY units have a much longer wire that actually comes out of the back.
[MTCB Android Head Units Q&A] ktibor69:
Connect reverse camera to JY HU

I would like to see the picture of the reverse camera before android booting up.

I have JY HU an this connection diagram:

[IMG="JY"]http://kepfeltoltes.hu/150325/Connection_diagram_www.kepfeltoltes.hu_.jpg[/IMG]

Which cable is good for the connecting trigger out (+12V reverse light) of reverse camera?

I think maybe back (orange) sign wire?
[MTCB Android Head Units Q&A] zapan999:
Post edited, translated "by hand" in english ;)

sorry for my miss.

Thierry
[MTCB Android Head Units Q&A] gy_ro:
I guess it's the orange in this schematics, the one that's labeled "back".

Be sure to connect the blue+white (brake) to the hand-brake switch or you can't view video (only if handbrake is on). You can overrule that in the software, or you can connect that wire direct to the ground. Both ways are illegal in many countries though.
[MTCB Android Head Units Q&A] typos1:
Um, the one marked "reverse light" ? If you meant on the car, um, the reverse light wire ? Just a hunch :)
[MTCB Android Head Units Q&A] jimsiv:
Hi guys

Recently I update my KLD from 4.2.2 with Coudu's 4.4.4 and the mcu from 2.02 to 2.4. The problem that I have from that point is that I'm losing the settings of the steering wheel buttons when I leave the car for more than an hour and two times lost the radio stations. Is it from the mcu or from the android part? Today I installed mcu 2.03 as I didn't find 2.02 at the link at the first post to see what will happen
[MTCB Android Head Units Q&A] zapan999:
i will post you today, for the description, it was black, with orange covers.

maybe due to the usb lack of power, i have buy an dc 12V to 5V to powering usb port. waiting for it to come. i will write on it when i will received/install it.
[MTCB Android Head Units Q&A] BloodBlight:
I personally would love Google Play Music (as I subscribe to it), but am happy to switch if needed.

I have heard others say Spotify (seems nice enough, I have heard it has an off-line mode as well) and I know Pandora and Slacker are popular.

I will ask around in the other thread I am talking in.
[MTCB Android Head Units Q&A] tomato18:
Hi [MENTION=1249599]zorantoma[/MENTION],

about the mtc-volume.apk. do you know exactly what does this point means?

"The brightness is also adjusted when you exit the rear view camera"

Does it meant that the brightness will change to Full while in reverse and change back to preset brightness when exit the reverse camera?
[MTCB Android Head Units Q&A] bit2bit:
Hi zorantoma,

does this work with non-rooted firmware?
[MTCB Android Head Units Q&A] agentdr8:
Hopefully they don't change the MTCManager when they switch to the 3188.

Will see what needs to be done to handle those.
[MTCB Android Head Units Q&A] AKCPE:
Does anyone know how to reboot KLD HU (non-rooted)?

I try to push power button twice but it went to standby mode. Not real power-off.

I try some widget on play store. They say it require rooted on Kitkat.

Try reboot command on terminal. It's also not work.
[MTCB Android Head Units Q&A] zorantoma:
Yes. That how it works on my unit.

---------- Post added at 07:15 PM ---------- Previous post was at 07:14 PM ----------

It doesnt ask for root rights,so yes it does work without root.
[MTCB Android Head Units Q&A] cimbike:
How you guys connect the power cord to power up the unit without having to have the car key switched on all the time?

If I link yellow with red acc I'm able to do so but then the unit won't turn off completely as I can see some leds on which might run out the battery.

It's a big inconvenience when having day lights always on.
[MTCB Android Head Units Q&A] agentdr8:
Relays, timers, etc.
[MTCB Android Head Units Q&A] valerio.tosti:
Hey guys i have a problem with the screen dimming on mu huifei. Everythime the lights of my car are automatic switching on the screen dimms automatic but when the lights going off the screen remains dark. I have tried with different dimming apps but nothing is working. Is there a solution?
[MTCB Android Head Units Q&A] cimbike:
Wow, and how you do that?
[MTCB Android Head Units Q&A] agentdr8:
Maybe disconnect the illumination wire from your headunit/harness and use just dimming apps?

---------- Post added at 12:16 PM ---------- Previous post was at 11:55 AM ----------

Many different ways to wire it, but I think one of the cleanest ways is to use a 12VDC UPS, like this, along with a 12V SLA battery. I have one like this which lasts well over an hour with the car off (mind you, I'm running the speakers from the internal amp). The UPS has an integrated charger, which takes care of topping off the battery when the vehicle is running.

I've since ditched that setup though, and instead use a relay, a few Schottky diodes, and adjustable shutdown timer. If you search through this thread, I posted a wiring diagram and parts list.
[MTCB Android Head Units Q&A] valerio.tosti:
Do you know what cable i must disconnect?
[MTCB Android Head Units Q&A] agentdr8:
There should be a wiring diagram on the top of your headunit. Typically the illumination wire is orange or orange with a white stripe, but that may not be the case on these devices.

It may also be different if your vehicle requires the use of a CANBUS adapter.
[MTCB Android Head Units Q&A] valerio.tosti:
Ok thank you i'll check that
[MTCB Android Head Units Q&A] computerman522:
Anybody know how to fix this microphone problem?

I have an Eonon GA5163 (it's KGL i think) and its got the option to connect an external mic in the back. It's on the same harness as the USBs and they work fine. The stock microphone is very bad, I thought people I spoke to were just picky but when i heard it from the other side, it was terrible. So i purchased a Xtenzi External Mic which has amazing reviews on Amazon. I installed it and the mic can only pick up my voice when its about an inch away from my mouth. Once its about 2 feet from my mouth, the mic is super quite. I'd appreciate any help.