yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] vulbas2:
yes this picture his before flashing,

I use this version ? it's ok MTCB-KLD1-V2.51
[MTCB Android Head Units Q&A] Masterjjb:
Help rooting my headunit

Hi there

I have a JY RK3066 head unit running android 4.4.4

Everything is working fine apart from the amplifier settings don't work for anything other then the stock application like DVD or radio however i use spotify a lot so that has no amplifier settings.

I have tried root master however none of those work.

Im yet to try Framaroot, Towelroot and Kingaroot as suggested by someone I work with.

Alternatively I was looking into flashing a new firmware onto it like Malaysk however his one is for KLD MCUs only and I have the JY MCU.

Can anyone help me?

Thank you
[MTCB Android Head Units Q&A] typos1:
DO NOT flash your MCU !!

You are the second person to post a picture of a "KLD2" MCU.

Previsouly you could use any KLD MCU on a KLD.

KGL introduced different MCUs - "KGL1", "KGL2", "KGL3" and "KGL4" as well as the previous "KGL" MCUs, last year, they ARE NOT interchangeable, if you have a KGL1 MCU you can only use KGL1 MCU updates. KLD have obviously started to do the same.

DO NOT upgrade your MCU to any MCU unless it is labelled "KDL2", since they have only just come out we do not have any KLD2 MCU updates, so stick with that MCU until KLD2 MCU updates start appearing.

EDIT: I may have mis-understood - was your MCU just a "KLD" before updating, or was it "KLD2" ?
[MTCB Android Head Units Q&A] gnox:
There is no easy way to root a 4.4.4 ROM.

You will need to flash a pre rooted one.

There is NO link between an android ROM and an MCU

You can put any android ROM you want on any MCU.

Just don't change your MCU ROM (MCU.IMG)
[MTCB Android Head Units Q&A] Masterjjb:
Okay so I can use Malaysk's Firmware he has made?

I know I want to root the device so that I can use Viper4Android which needs rooting for installing drivers.
[MTCB Android Head Units Q&A] vulbas2:
****, i just flash with MTCB-KLD1-V2.51

I was lucky everything works.
[MTCB Android Head Units Q&A] typos1:
Ok, in that case your unit's original MCU was a "KLD1" MCU and your problems occurred because you installed a "KLD2" MCU.

Where did you get the "KLD2" and "KLD1" MCU updates from ?
[MTCB Android Head Units Q&A] vulbas2:
I kld2 and I put KLD1
[MTCB Android Head Units Q&A] typos1:
Yes I know where did you get the update from ?
[MTCB Android Head Units Q&A] gnox:
Yes - flash away. It is MCU independent
[MTCB Android Head Units Q&A] vulbas2:
here ttps://drive.google.com/folderview?id=0BxmzvLRI7-eNSHM0ZGQ1UmF3cTQ&usp=sharing&tid=0BxmzvLRI7-eNeVA2SWkwM1pLZ28#listv

I put mcu on the sd card,
[MTCB Android Head Units Q&A] Enc0der:
As you know, the MTCManager remembers the last foreground app on shutdown, and then re-launch it again at boot time.

Is there a way to DISABLE this feature?

I'm using Tasker to automatically load Waze in the background and then Poweramp in the foreground at boot time.

But there is a potential problem when I'm using some other app (Radio..) before shutdown, and the MTCManager will load it as well and it will interfere with Poweramp.

I thought about a quick solution for this - simply open just Waze with Tasker, and let MTCManager manage the music app (I can live with it starting sometimes the Radio and sometimes Poweramp according to the last used app), but this will not work if my last app was, well, Waze.... so I will have no music playing at all.

So... is there a way to just disable this feature in MTCManager? I will manage the autorun@boot myself...

What if I'll disable the MTCManager service all together? Will it destroy other things?
[MTCB Android Head Units Q&A] jkchr1s:
Edit 2: The HU started making the same popping sound (from the HU amplified speakers) this morning as others have mentioned from HuiFei units. I contacted the seller and they want me to ship the unit back, so I'm waiting for further instructions.
[MTCB Android Head Units Q&A] NaviPR:
Still looking for answers to this. I know this is XDA Developers ( ;) ), but perhaps someone might have some info regarding this matter?

---

Also - looking for info about using USB cameras other than the supplied DVR. Any chances of using HD USB cameras? I know a few people hooked up different USB cameras and they worked, but I'm wondering if that's random or not, perhaps there are certain models that always work?
[MTCB Android Head Units Q&A] javlada:
I would like to know this too. If you find a working solution, please let me know.
[MTCB Android Head Units Q&A] typos1:
Yes that is the right way to do it. Where did you get the KLD2 MCU from, the link you gave only showed a KLD2 MCU update.

I dont know who maintains the google drive repository, anyone know who does ?

Several cameras have been found to work but your ll have to search the thread to find which ones.
[MTCB Android Head Units Q&A] Malaysk:
booroondook russian forum 4pda
[MTCB Android Head Units Q&A] vulbas2:
the KLD2 was originally installed.

I installed KLD1 following my mistake.

I have a problem with the volume knob, with KLD1.

is anyone know where find mcu KLD2?

I installed the latest version of Malaysk, the equalizer is not working. the speaker position adjustment is not working.

[YOUTUBE]LUH634knviU[/YOUTUBE]
[MTCB Android Head Units Q&A] NaviPR:
Argh, 1254 pages... sure, I'll do it, was just hoping someone could answer right off the bat ;) Thanks anyway.

Any chance of helping with that iPhone Wi-Fi connectivity?

And what about that "Easy Connected" thing?

---------- Post added at 04:12 PM ---------- Previous post was at 04:09 PM ----------

Had the exact same problem with one KGL unit. Flashing the right MCU helped. The unit was KGL1 but the MCU installed was KGL, front buttons didn't work right, Amplifier and Fader didn't work. I flashed KGL1 and it worked right away.

I know this is a KLD not KGL, just giving my 3 cents in case somebody has trouble with a KGL unit.

EDIT: Hmmmm, actually, I read up on what you did, and actually I'm sure the problem is that you flashed the wrong MCU.
[MTCB Android Head Units Q&A] vulbas2:
I flashed with KLD1, I did not find KLD2. as it was at the base

I do not know how to do now
[MTCB Android Head Units Q&A] Malaysk:
Why you can not ask from his native MCU seller?
[MTCB Android Head Units Q&A] NaviPR:
I guess now all that's left is to write to Klyde and ask them politely for a KLD2 MCU. If they don't give it to you, then I guess you have to sit back, relax and wait until somebody comes up with a KLD2 MCU - either the nice people here on XDA or the manufacturer at some point...
[MTCB Android Head Units Q&A] vulbas2:
good idea. I did not think. I'll send an email
[MTCB Android Head Units Q&A] doctorman:
so after yyou changed your SoM to RK3188 you just installed the update.img or did they give you a new MCU.img to update your unit as well?

or it did not need an update perhaps?
[MTCB Android Head Units Q&A] Enc0der:
How can I buy it from JY?

The last time I talked to them they told me it's not possible to switch cards, and wouldn't sell me the RK3188...
[MTCB Android Head Units Q&A] DJCannonball:
They all say it's not possible! But it is.

I have talked to Jacky. Read Dsa's post

She's sending me an RK3188 board for 80 $ including shipping to Netherlands.

Explain to her that you want to buy. Even if it would not be compatible with Rk 3066 units.
[MTCB Android Head Units Q&A] roidayan:
Hi,

I'm new here and found this thread really great and helpful. I didn't go through all the posts as there are many but maybe you can help me with my questions.

I have a KLD unit and have problems with the bluetooth app there. Incoming calls shows number instead of a name. outgoing calls shows the name though.

Also it could be better with other small issues and features. i.e. no space in last nae and first name. no caller image in the list. not showing phone tag like phone,work,fax.

Is it maybe possible to switch this app to a different one? is there a replacement?

Also is it possible to make one of steering wheel buttons to do a voice call or launch google listen like "ok google" does? even small dashboard bluetooth speaker does that when clicking it's button.

In the settings of kld the closest thing I found is launching that bluetooth app which then I need to still search for a contact.

Thanks in advance,

Roi
[MTCB Android Head Units Q&A] naghtan:
Thanks for the works.

Tested in a RK3066 1024x600 and it works nice! I just feel sometimes little heavy with next launcher. I wanna try regular launcher. I add both in my torrent server and will let there to share all the time could be possible.

Thanks for all!
[MTCB Android Head Units Q&A] priusfan:
Do you have any picture for the original SOM you are changing ?

I wonder if they are all of them compatible (whatever the brand) ?

Here is mine from a klyde sold by kanor:
[MTCB Android Head Units Q&A] agentdr8:
There's no native way to disable it. If you disable the MTCManager service, you'll lose SWC, mode switching, bluetooth integration, and it'll most likely just cause endless FCs.

I can probably add a preference for this in XMTC, since it's hooking MTCManager already.
[MTCB Android Head Units Q&A] buhumnoy:
I flash with MTCB-KLD1-V2.51 wrong mcu for my head unit KLD. I think KLD1 same KLD . Now Radio problem

Who know that how can fix problem. Please help me.

Thank you :crying:
[MTCB Android Head Units Q&A] Malaysk:
I also flashed KLD1 and I stopped working radio. It's okay centuries it is not !!! I just flashed again MCU KLD 2.47 explosives factory settings (password 126) I installed a type of radio 7706 and restarted the unit and once again become the All fine.
[MTCB Android Head Units Q&A] buhumnoy:
Thank you so much Malaysk for answer

can you give me MCU KLD 2.47

:laugh:
[MTCB Android Head Units Q&A] Malaysk:
Upss.... not 2.47 but 2.49 KLD :o
[MTCB Android Head Units Q&A] vulbas2:
I contacted Klyde for KLD2

it is that it?

http://szklyde.en.alibaba.com/
[MTCB Android Head Units Q&A] priusfan:
You should contact your seller.... joyce <jollyyang (@) 126.com>

first try to contact her on the chat in the shop where you ordered....
[MTCB Android Head Units Q&A] vulbas2:
I also contacted ;)
[MTCB Android Head Units Q&A] RaZi3L_:
last Malaysk rom for rk3066 with 1024x600 screen have two bugs:

1- can't change boot logo through 126 menu

2- if set lcd density to 240 system settings on device submenu crash every time (system settings --> system: "Unfortunately, settings has stopped)
[MTCB Android Head Units Q&A] Malaysk:
1 . Can !! You must tick Custom Logo and select your boot logo

2. I warned centuries key messages

The default is the density of the screen 230 dpi

Do not put the screen density of 240 dpi !!!
[MTCB Android Head Units Q&A] typos1:
Ah, can you tell him that there is no "RK3188 2.44 MCU" - the MCUs are the same for RK3066 and RK3188, adding "RK3188" just confuses people - it should just be "KLD 2.44" and you can use it on RK3066 or RK3188, or I can pm him on here.

I will add "gen" to them :) (youre talking only about the quad core firmware ?).

I meant use the thread search box to the right, not read the whole thread !! I cant help as I have no front cam, you could hope that some one who has is reading and they chip in and help, failing that search the thread.
[MTCB Android Head Units Q&A] RaZi3L_:
Thx Malaysk. Maybe i explained bad. I mean the boot logo is not animated, on default JY rom is it. I mean car brand logo.

About JY launcher, how can i extract if from original firmware?
[MTCB Android Head Units Q&A] felipesalomao:
How Root Golf 7 HuiFei KR 8043 Head Unit (android 4.4.2)

Hello, i have Golf 7 Huifei (KGL KR-8043) Head Unit with android 4.4.2.

This car have several canbus integrations like air conditioner, parking radar, fuel consumiption and i cant loose those functions, but i have big problem, it have internal memory (about 6GB), and for some reason spotify only intall on this unit, i tried everything to make it storage cache files on SD card (32GB), so i see tutorial explaining that need remove cache files, uninstall, then delete folder (android/data/com.spotify.music) and then reinstall spotify, problem is that after remove spotify, when i try delete folder insede internal usb flash memory, it say that i cant remove, need root for that.. And when i install spotify, it keed storage cache cash files on small internal usb.. Now problem is worse, because downloaded offline music with normal quality and if i try change to high quality, it get error and say that i not have space (i have space both on internal usb and sd card).. It disapear music when i get offline... I think only way to solve it is root and delete that folder to try install it on sd card..

I am afraid make root process and lost canbus integrations.. Somebody can help me ?

See my golf 7 huifei kr 8043 headunit informations:

Android Version: 4.4.2

MCU Version: 4.3.11.1-11-11-450101

System Version: 2.9.1_20141217

Screen Resolution: 800x480

Model that i choosed (canbus integrations): Golf7(4.3.10, CONFIG,RDS,BC6,Rohm37XXX, TEF662X)

Head Unit photos:
[MTCB Android Head Units Q&A] kaween:
First, you're looking at the wrong forum. The info you've put down there is not of a RK-based unit, but a MST-based device (An21-U) : rooting won't work with the info you'll find on this thread.

To root an AN21-U, you either go for the 2.8.8 firmware + baidu route, or you try a "temp root" with Baidu, do not reboot, and try the CHMOD 777 trick explained on the AN21-U forum.

What EVER you do, do NOT use the root info on this thread, you have a very different device than the Huifei&co units here which are all RK-based units and use a very different method of rooting (prerooted android image which you CAN NOT USE on your unit !!!)

If I remember correctly, there's indeed somethind odd with the way spotifiy works out storage spaces and available storage : it determines this at the installation stage and is done with it. If it fails, the best way to rectify it is indeed removing it completly and start over again. You'll find that info too on the AN21 forum.

I'm aware of "problematic root" once after system version 2.8.6 I thought. There's a per-rooted 2.8.8 avaiable on the file repository, but I recommend first to read (and use search) about the stuff you want to do before doing it. It may involve the "swap sd location" setting of the AN21, can't remember exactly.

But first, "get you a** to the correct forum first and do not try any tricks or mods that were meant for the machines on this thread. What you have there is a KAIER device, not a Huifei RK-series, which is a totally different machine than the ones that are discussed here. I should know, I have both (AN21 and a JY-K3188).

Basically, you COULD do a non-perm root using Baidu, rectify you issues, remove everything of the old Spotify situation, if need be swap memory location defaults, restart (root would be lost unless you use 2.8.8 or manually force root-retention) and do a reinstalation of Spotify. That way, you don't risk anything permanent and you don't have to "break into sweat" regarding installing a lower system version which -by the way- is just as android 4.4.2. as 2.8.8 is (NOT = there's no android above API16 on the MST786 afaik I know, so they're mostly fake, relabeled 4.1's to begin with !!)
[MTCB Android Head Units Q&A] DJCannonball:
sure, here's mine:
[MTCB Android Head Units Q&A] felipesalomao:
Thank you for your complete answer!! I really bought device directly from SZKAIER manufacturer, so i should look for AN21 thread, right?! About root, Baidu root tool require android and mcu images for non-permanent root? It's easy to do? I think non permanent root would be best option because would be enough to fix problem that I have without have too many risk..

Now another problem ithatI believe that all android car dvd should have..

I have iphone 6 that i use to share Internet connection using wifi.. Problem is that ios disable Internet thetering after 60 seconds with screen off, so every time that I use car, I need manually activate hotspot on my iPhone.. Also it use a lot of battery..

So I thinked that we could have perfect solution..

Anyway I have bluetooth paired with car (ad2p), it work automatically and very well..

I would like to make some tasker script (on Android car dvd) that can detect iphone paired and then start bluetooth Internet thetering automatically, so we would have perfect solution, automatic connection using only 1 hands free connection (bluetooth only), automatic connection and low battery usage (mobile phone). what you think? Somebody already tried something like this? Thank you lot
[MTCB Android Head Units Q&A] epicuser07:
[MENTION=3590033]Malaysk[/MENTION]

I installed your latest 800 x 400 ROM and noticed the volume random will go up and down when listening to anything over Bluetooth. Any ideas?
[MTCB Android Head Units Q&A] rmarchal:
Programming video capture on KDC0223

Hello,

I own a KD C0223 (based on RK3066) and I want to capture and record the video from rear camera and from AVIN.

I already success in third app that created an intent that call com.microtek.avin to

display the video. But I want to go further and understanding how MTCAVIN.apk

works, I have already decompile it and looked at generated source code, but I did not

success to adapt it for me. If someone got how to get programmatically the video signal from the both inputs

or know which company has develop this code maybe I can ask them for some info.

Thanks
[MTCB Android Head Units Q&A] idr3s:
The units alive again! Unplugged the unit and plugged it back in and it worked. It actually did remember it self in shutdown mode

The reason it wouldnt (ever) go in recovery was cause my reset button doesnt work anymore. Wonder if you would know what i could do about that.

Anyways for now i just moved back to an older os and mcu and everythings back to normal =D
[MTCB Android Head Units Q&A] typos1:
I modified the title of the folder - I added "gen", did you not see it ? Or do you mean you want me to add genuine to the title of each .rar file ? I dont think people would know what " * " meant if I added that.

Glad we ve found out where the MCU is, well where it isnt actually ! :)
[MTCB Android Head Units Q&A] elkabong007:
Try This:

Open rk3066 headunit service--------> advance setting------------->turn off speed adjust
[MTCB Android Head Units Q&A] poyz:
Thanks for the tips guys. Turns out the sdcard I was using was a dud. Works fine on the computer but the unit had trouble reading from it. Go figure.
[MTCB Android Head Units Q&A] elkabong007:
I connected video1 out and video2 out to my headrest monitor and the monitors says no signal i wonder if this is firmware related or hardware problem.
[MTCB Android Head Units Q&A] buhumnoy:
Thank you Malaysk, I can use radio with manual touch but search button channel cannot. :silly:
[MTCB Android Head Units Q&A] oatja:
Hi all,

Today I've update mcu into my unit from

MTCB-KGLV.2.22 to V2.47 look everything work fine. I will keep test on it.

Anyway does someone has solution for poor FM radio reception? My car has signal booster but still has jitter noise and decreasing sound...

---------- Post added at 04:41 AM ---------- Previous post was at 04:39 AM ----------

Is that my upload firmware? What does the "authentic" or "genuine" mean?

is it mean real kitkat?
[MTCB Android Head Units Q&A] Malaysk:
In the factory setting, you must specify the correct Сanbas for your machine and install the radio Europe
[MTCB Android Head Units Q&A] vulbas2:
hello,

I received the files, the MCU and IMG.

I test on my device. and if it's ok I'll shipments.
[MTCB Android Head Units Q&A] Malaysk:
please give a link to download firmware and MCU.... others who have such a device will be very happy :D
[MTCB Android Head Units Q&A] vulbas2:
the file is available, 15 days. should be placed elsewhere

https://www.filemail.com/t/b788bbb65dd74e048e1cfa11958b5c7b
[MTCB Android Head Units Q&A] Marius B:
Hi !

Did you make something with what i ask ?

Element And XMTCB ?
[MTCB Android Head Units Q&A] Malaysk:
Are you sure that there is MCU for KLD2? I just met this firmware and there was to KLD without numbers. When the bet, go to Settings - About your device and see what MCU been established. You seller said that it is for KLD2 ?
[MTCB Android Head Units Q&A] mnisar:
[MENTION=3590033]Malaysk[/MENTION]

Waiting for rk3188 1024x600 rom with latest graphics ☺are you working on that?
[MTCB Android Head Units Q&A] Marius B:
I read that version on mcu like kgl 1 to kgl 4 is not compatibl e.

I recived new mcu update for mcu and this is mcu kgl 2.53 no kgl4 2.53 and work all fine.
[MTCB Android Head Units Q&A] felipesalomao:
Hi guys, i have made non permanent root on my SZ Kaier KR8043 Golf 7 Car DVD (Android 4.4.2)

My Golf 7 head unit have hundrets of canbus integration, i was able to find both apps (android) that can interect with car functions (Car Settings and Car Info), those apps also work with another cars models.. Understanding how it works, possibilitys are unlimited..

I was able to find original APK app (2 apks), so after with apk tools i was able to decompile software and see all source files and structure..

My first goal is to change layout of car info app see what i want to do:

Actual interface

New Interface Project

Somebody can help me with that ? I dont understand well programming code.. Not appear to be hard as app are relative simple (small)..

Here you can download 2 apks and decompiled folders..

http://salomacombr.ipage.com/Anuncios/Golf%207%20Car%20Info%20and%20Car%20Settings%20apps%20decompiled%20apk.zip
[MTCB Android Head Units Q&A] Marius B:
Your firmware dont have a bootlogo animateD.

First time i have a KGL animated boot logo. Can you make some changes ?
[MTCB Android Head Units Q&A] Malaysk:
Sorry, I can not for each person to make individual firmware.
[MTCB Android Head Units Q&A] Marius B:
Tel me what to do to make animated. When i select animated boot i see only andoid logo.
[MTCB Android Head Units Q&A] oatja:
about car recorder if I turn on GPS program the program will stop recording. I think this may cause of both program use GPS signal too. Can someone has issue about this and how to fix it? Or if they have another program to record without using GPS?
[MTCB Android Head Units Q&A] elkabong007:
im using both recorder and gps navigation program at the same time with no problems, the only issue is sometime the video flickers
[MTCB Android Head Units Q&A] vulbas2:
I try to install MCU

the problem is that the mcu is not good. or it is corrupt I do not know.

it does not install. it writes error.

I sent an email to the seller to have another
[MTCB Android Head Units Q&A] pk313:
[MENTION=3590033]Malaysk[/MENTION]

I use your nice rom 800x480 from april

A question ... wifi sys sometimes ...random... back in off at next startup ...i make some wrong setting?

How weather symbol can be removed from notification bar ? Still always present I don't use and keep too much space to other notification. I try all possible settings. .i also unistalled for test mctweather and goweather apk's but this simbol still on notification bar

Thanks
[MTCB Android Head Units Q&A] jacekruf:
Hi You neet to choose Logo and DVD then it will be working.