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devilsoft

Senior Member
Mar 2, 2011
199
123
Craiova
Well, it looks like I finally got my horrible sounding audio fixed once and for all.

My speakers sounded like they only output treble, and the midrange sound was either non-existant or sounded like it was playing in mud or something. I was running Condu's 4.4.4 KLD ROM from the end of December (which sounded worlds better than the stock 4.2.2 Klyde ROM)... but tonight I flashed Condu's KGL 4.4.4 ROM from Feb 2 and... WOW! It's like I actually have a quality sounding head unit again.

While on the Condu 4.4.4 ROM late Dec ROM, I replaced the CANBUS adapter and also had to switch the factory settings adapter to make the Amp settings do anything (adjustments made no difference in sound quality). Changing the CANBUS in Factory settings made the Amp settings do *something*, but overall sound quality was still horrible, missing a wide variety of sound frequencies. The woofers on my 6.5" speakers hardly moved at all, but treble was blaring loud as can be. I flashed this KGL ROM with the correct canbus adapter and the correct canbus setting in factory settings BEFORE flashing. Not sure if this made any difference in quality (re-flashing after changing to the correct canbus settings), but it really did make the sound quality come to life.

I know there are a handful of others on here that said they were missing midrange sound and just an all around muddy sound, and at least for me, the Feb 2 Condu 4.4.4 KGL ROM 100% resolved my sound quality issues. I'm now happily running a Klyde unit that sounds way better than my factory sound system (which I must say had about 50% of the quality of the factory HU running the KLD ROM).

The only issue I had was, initially after flashing, my volume knob did not change the volume. After a reboot, everything was working 100%.

Thanks Condu!!! Those with sound quality issues, try this ROM! It was a miracle worker for me. :D

Try also the Viper4Android, and you will notice a HUGE difference in sound quality.

For anybody interested to use Viper4Android, follow this steps:
1. Install the apk from this post
2, Install viper fx drivers when prompted (Choose Super Audio Quality)
3. Restart device
4. Open Viper4Android from Launcher, go to menu, then click "Lock Effect Mode" and choose "Headset"
5. Go To Menu, click "UI Setting" and choose "Expert", to gain access to more options
6. Go to "Headset" tab, and click "Enable"
7. Enable and play with different options, according to your taste in sound :)

In PowerAmp, in order to enable Viper4Android, you need to uncheck "Direct Volume Control" from Settings -> Audio -> Advanced Tweaks

To start Viper FX from install-recovery.sh, use this command:
Code:
am startservice com.vipercn.viper4android_v2/.service.ViPER4AndroidService

Viper FX affects all the apps sounds (autio player, video player, bluetooth, youtube, etc), but not Radio, which is MCU controlled.

P.S.
More about Viper4Android, can be found here: http://xdaforums.com/showthread.php?t=2191223
 

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pk313

Senior Member
Feb 10, 2015
125
25
milan
hi, i'm new here.....and sorry if my english is not so perfect..:)
...The.. Pure Android Car stereo are quite new for me, i read hundred and hundred ...here

i have installed on my Car (kia Sportage) a 4.2.2 KLD 2.20.....this:
AADCFF1ZoLZc1_anfLv2b6q4a



i'm happy about that, good sound, good dvd player, good touchscreen, igo navi preinstalled is fantastic, bluetooth and wifi working perfectly with phone
...but some small things... and i hope i will have some help from xda...full on genius!!

1 Radio: .nice FM radio receiver signal , AF seems working (in italy driving on the mountains you need), RDS is working, but PTY show wrong type name... i.e for a music station (99%) have to show .. MUSIC but show RELIGION !!!!! so on the side on station name i see always RELIGION ..!! Something to do?
2 With my surprise no widget selectable, i was thinking that as android, lots of wiidget was present, i.e radio in homepage have only the default and i don't like, but i can't change
3 OBD BT interface immediatly reconized (as u can see on pics, ) but app's like torque(tried several other apps too) don't found.

If some of you found same problem and have try to solve... i hope can help me! http://cdn4.xda-developers.com/images/icons/icon7.gif
 

cpframe

Member
Dec 12, 2013
15
1
SWC = Steering Wheel Controls

---------- Post added at 11:26 PM ---------- Previous post was at 11:18 PM ----------



I have flashed several times. First make sure your downloaded .img file is good. Place it in the root of an sd card and put it in the gps sd card slot. If it doesn't pop up in a few seconds asking if you want to install update.img then press in the reset button for about 5 sconds with a pen and also hold the power button until it beeps the release the power button. Select the ommand to update.img using the volume control and then long press the power button to select it.

Now that I think about it there was 1 ROM that I had trouble with. I pressed the power button and could never get it to select. I think I wound up using a different ROM. I don't remember right now what I did.

Steve

Thanks for the response Steve, i understand the flashing process. The instructions on the first page are very precise. I have already flashed Coudo's 4.4.4 rooted rom. The trouble I'm having is flashing a new rom. I'm not sure how to check the update img. to see if it's good, I've tried 3 different ones with no luck. Frustrating!. I'm going to try another one today and see what happens. Btw, i updated the mcu from 2.12 to 2.20 first, then flashed the rom. Even though the update img. I've tried have failed i was able to flash the mcu back to the 2.16 version. Thanks again for the input, any and all help is appreciated.
 

Krisjan89

Senior Member
Jan 16, 2015
96
25
Skive
thank you thank you thank you

Well, it looks like I finally got my horrible sounding audio fixed once and for all.

My speakers sounded like they only output treble, and the midrange sound was either non-existant or sounded like it was playing in mud or something. I was running Condu's 4.4.4 KLD ROM from the end of December (which sounded worlds better than the stock 4.2.2 Klyde ROM)... but tonight I flashed Condu's KGL 4.4.4 ROM from Feb 2 and... WOW! It's like I actually have a quality sounding head unit again.

While on the Condu 4.4.4 ROM late Dec ROM, I replaced the CANBUS adapter and also had to switch the factory settings adapter to make the Amp settings do anything (adjustments made no difference in sound quality). Changing the CANBUS in Factory settings made the Amp settings do *something*, but overall sound quality was still horrible, missing a wide variety of sound frequencies. The woofers on my 6.5" speakers hardly moved at all, but treble was blaring loud as can be. I flashed this KGL ROM with the correct canbus adapter and the correct canbus setting in factory settings BEFORE flashing. Not sure if this made any difference in quality (re-flashing after changing to the correct canbus settings), but it really did make the sound quality come to life.

I know there are a handful of others on here that said they were missing midrange sound and just an all around muddy sound, and at least for me, the Feb 2 Condu 4.4.4 KGL ROM 100% resolved my sound quality issues. I'm now happily running a Klyde unit that sounds way better than my factory sound system (which I must say had about 50% of the quality of the factory HU running the KLD ROM).

The only issue I had was, initially after flashing, my volume knob did not change the volume. After a reboot, everything was working 100%.

Thanks Condu!!! Those with sound quality issues, try this ROM! It was a miracle worker for me. :D

Just updated to the rom you recommended, the sound quality has improved signigficantly. Thank you so much!
 

starshy

New member
Feb 10, 2015
2
0
BMW E39 with KGL Erisin radio,

still have problem when radio was on and you cold start the car (radio), it freezes every time, sometimes on boot sometimes when booted already, then pressing reset button and it works properly (but then it does not autostart radio), when turning off radio app before shutdown, the boot works.

Sometimes Radio turns on and plays music, but screen is frozen, sometimes screen fills slowly with white pixels, sometimes it's just black screen, but after 1 or 2 resets it always work, maybe also cold soldering somewhere?

Tested with stock 1.77 KGL1 MCU,Android 4.2.2 and 2.22 MCU KGL5, Android 4.4.4

I think that has something to do with the radio, is there any other mtc radio app?
Will try 1.86 MCU today.
 

typos1

Senior Member
Apr 3, 2007
9,563
1,770
UK
1 Radio: .nice FM radio receiver signal , AF seems working (in italy driving on the mountains you need), RDS is working, but PTY show wrong type name... i.e for a music station (99%) have to show .. MUSIC but show RELIGION !!!!! so on the side on station name i see always RELIGION ..!! Something to do?
2 With my surprise no widget selectable, i was thinking that as android, lots of wiidget was present, i.e radio in homepage have only the default and i don't like, but i can't change
3 OBD BT interface immediatly reconized (as u can see on pics, ) but app's like torque(tried several other apps too) don't found.

I afraid they all get the programme type wrong, you could decompile the radio apk and try and change it. Good to hear youre in Italy and AF works, several people have said it doesnt work in Italy.

---------- Post added at 11:41 AM ---------- Previous post was at 11:38 AM ----------

The build in Music app works excelent with Viper FX! You just need to disable the "Animated Graphs" by pressing the button from middle-right. If that graphs are displaying, then Music APP uses MCU directly, so just disable that with the button,

The built in Music app is controlled by the MCU (its called MTCMusic.apk !!), what makes you think it isnt ?
 

RaZi3L_

Senior Member
Apr 7, 2008
151
23
Valencia
Sound quality is down to personal taste - mine sounds good and many people also say theirs sounds good (including at least 2 that have a lot of aftermarket ICE experience) but some also have said they think it sounds bad, but as its Android you can root it and install Poweramp of Viper4android, BeatsAudio etc, so it shouldnt be a problem whatever you think of the sound quality. Button mapping is also no problem - you can re-map them, there are 2 apps written for that purpose

hi!, What are those applications that allow remap physical buttons?
 

typos1

Senior Member
Apr 3, 2007
9,563
1,770
UK
I have a KLD unit 4.4.4 and have udated the mcu and installed Coudo's 4.4.4 udate. I wanted try one of Malaysk's rom. I've tried everything i can think of but cannot get it to install the update img. I've tried resetting the unit via the reset button and the factory reset with no luck. Any ideas of how to do this? Thanks for the help

Try installing from recovery.

---------- Post added at 11:45 AM ---------- Previous post was at 11:43 AM ----------

oh yeah i read the first page but i can't find anything about bootloop or other stuff like this. i read about TWRP , the no touch control and blablabla but i would like to know if (in case of bootloop) twrp is the only way to save my system.

Bootloop has happened very very rarely, do a thread search if you want to find out how the very few people who had this problem got out of it, otherwise just go ahead and intsall the update.
 

devilsoft

Senior Member
Mar 2, 2011
199
123
Craiova
I afraid they all get the programme type wrong, you could decompile the radio apk and try and change it. Good to hear youre in Italy and AF works, several people have said it doesnt work in Italy.

---------- Post added at 11:41 AM ---------- Previous post was at 11:38 AM ----------



The built in Music app is controlled by the MCU (its called MTCMusic.apk !!), what makes you think it isnt ?

Because I have Viper FX working with MTC Music really well, if you press that button. Like I said, pressing that button, the app process the sound with android instead of going straight to MCU sound process.
I can make a video if you wish, but you can also test a little and you will see that i'm not wrong.
 

typos1

Senior Member
Apr 3, 2007
9,563
1,770
UK
What is SWC settings?

No im not talking about Car service etc

Thanks

I think I know what app are you missing. I also missed that in @coudu latest roms, and it's called "Control Settings". With this app, you can access car settings like Date/Time, BC1, BC2 data, etc.
I uploaded the apk to this post. Install this MTCControlSettings.apk as a normal app.

P.S. @coudu, please add this app to your releases, as we need this app a lot. It's the only way we can access the internal car settings.

It is not missing, ALL units have it, but CAN Bus needs to be selected in factory settings and then it will appear, but not ALL CAN Bus vehicle settings will make it appear - for instance a quick test sees the app showing up if CAN Bus is set to VW simple, but not if set to Honda Civic/CRV simple.

---------- Post added at 11:55 AM ---------- Previous post was at 11:52 AM ----------

hi!, What are those applications that allow remap physical buttons?

Physical buttons ? There are no apps for that, there are some settings in factory settings for button/key layout, try them, if thats no help, then do a thread search, it has been mentioned i the past but I cant remember when or how to do it.
 
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devilsoft

Senior Member
Mar 2, 2011
199
123
Craiova
It is not missing, ALL units have it, but CAN Bus needs to be selected in factory settings and then it will appear, but not ALL CAN Bus vehicle settings will make it appear - for instance a quixk test sees the app showing up if CAN Bus is set to VW simple, but not if set to Honda Civic/CRV simple.

Well, I saw that the app was fizically missing from the rom. At least is missing on coudui rom 4.4.4 from january (and maybe from december too, but didn't test that). In Malaysk ROM 4.4.4 is present.
Both roms were configured to have the correct CANBus. I extracted the apk from Malayks rom, and then installed on coudu, and worked.
 

typos1

Senior Member
Apr 3, 2007
9,563
1,770
UK
Because I have Viper FX working with MTC Music really well, if you press that button. Like I said, pressing that button, the app process the sound with android instead of going straight to MCU sound process.
I can make a video if you wish, but you can also test a little and you will see that i'm not wrong.

You have no actual evidence apart from your ears ?

I would like you to be right, but I dont think you are - its an MCU app and I cant see how turning off what is simply a display option would make the sound get processed by Android, for this you have to do a hardware mod on the motherboard, see the thread on 4pda.ru for details.

Like I say I want you to be right, got an other evidence ?
 
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devilsoft

Senior Member
Mar 2, 2011
199
123
Craiova
You have no actual evidence apart from your ears ?

I would like you to be right, but I dont think you are - its an MCU app and I cant see how turning off what is simply a display option would make the sound get processed by Android, for thgis you have to do a hardware mod on the motherboard.

Like I say I want you to be right, got an other evidence ?

OK, i will try to make a video (hope I will get the right result to prove I'm right). I was playign with this HU's from 4.2.2 to 4.4.4 and all ROMS acts the same. In my opinion, that graphs are displayed by communicating directly with MCU, so it must switch somehow between MCU and Android sound processor. But it's just my guess on this. The difference is 100% obvious, and I will show you in the next video.
 

tonettothebest

Senior Member
Oct 12, 2011
174
9
Bootloop has happened very very rarely, do a thread search if you want to find out how the very few people who had this problem got out of it, otherwise just go ahead and intsall the update.

I try to search but i havnt find anything about it.

I know that is difficult to have bootloop but a flashmaniac like me always find a way to do something wrong. expecially with xposed control i'm afraid to use a wrong module and so have bootloop. So now you can understand....
 

typos1

Senior Member
Apr 3, 2007
9,563
1,770
UK
OK, i will try to make a video (hope I will get the right result to prove I'm right). I was playign with this HU's from 4.2.2 to 4.4.4 and all ROMS acts the same. In my opinion, that graphs are displayed by communicating directly with MCU, so it must switch somehow between MCU and Android sound processor. But it's just my guess on this. The difference is 100% obvious, and I will show you in the next video.

The graph is just a spectrum analyser display, it should not affect the sound, it will get info from the MCU for the display, certainly, but turning it off will not make the sound go via Android. I dont think a video would help either, I meant programming evidence ie code.

Like I say, I d like you to be right, but its an MTCapp and is controlled by the MCU, not android.

---------- Post added at 12:19 PM ---------- Previous post was at 12:18 PM ----------

I try to search but i havnt find anything about it.

I know that is difficult to have bootloop but a flashmaniac like me always find a way to do something wrong. expecially with xposed control i'm afraid to use a wrong module and so have bootloop. So now you can understand....

I m afraid I cant because bootloop has happened so rarely.

I ve just searched "bootloop" in the thread search box and there are 2 pages of posts that come up going back to April, so I m confused how you have not found any mention of it.
 
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pk313

Senior Member
Feb 10, 2015
125
25
milan
I afraid they all get the programme type wrong, you could decompile the radio apk and try and change it. Good to hear youre in Italy and AF works, several people have said it doesnt work in Italy.

---------- Post added at 11:41 AM ---------- Previous post was at 11:38 AM ----------



The built in Music app is controlled by the MCU (its called MTCMusic.apk !!), what makes you think it isnt ?

thanks, :)
BTW.. AF work just it's slow...means that start to look for other frequencies after approx 30 seconds signal is poor....
i will try to see if i'm eable to decopile Radio ApK if permitted
Somebody know if some simple App ..without root...permit to change the homepage..like add widget or additional controls?
 

devilsoft

Senior Member
Mar 2, 2011
199
123
Craiova
The graph is just a spectrum analyser display, it should not affect the sound, it will get info from the MCU for the display, certainly, but turning it off will not make the sound go via Android. I dont think a video would help either, I meant programming evidence ie code.

Like I say, I d like you to be right, but its an MTCapp and is controlled by the MCU, not android.

---------- Post added at 12:19 PM ---------- Previous post was at 12:18 PM ----------



I m afraid I cant because bootloop has happened so rarely.

I ve just searched "bootloop" in the thread search box and there are 2 pages of posts that come up going back to April, so I m confused how you have not found any mention of it.

I uploaded the video here: https://www.youtube.com/watch?v=N-9buk63EZY
I hope you notice the difference in sound. I repeat the step several times (pressing that button from time to time)
 

typos1

Senior Member
Apr 3, 2007
9,563
1,770
UK
thanks, :)
BTW.. AF work just it's slow...means that start to look for other frequencies after approx 30 seconds signal is poor....
i will try to see if i'm eable to decopile Radio ApK if permitted
Somebody know if some simple App ..without root...permit to change the homepage..like add widget or additional controls?

Widgets appear if you keep swiping right after apps, you have to be on the second page of the launchers screen before you press the apps button as the first has the built in weather and music/radio/bt music widgets (assuming you have the KLD launcher, the KGL and JY ones allow you to have widgets next to the built in widgets). Install another launcher if you dont like it.

---------- Post added at 12:50 PM ---------- Previous post was at 12:43 PM ----------

I uploaded the video here: https://www.youtube.com/watch?v=N-9buk63EZY
I hope you notice the difference in sound. I repeat the step several times (pressing that button from time to time)

Well I can hear a change, but it actually sounds worse when you turn off the graphic display (although I appreciate that a Youtube video recorded on a phone is not he best way to detect sound quality changes - if you think it sounds better I m not going to disagree).

I cant see why the sound would change if you turned that display on or off, it doesnt on my unit, although I dont have Viper installed currently (I removed it).

Unfortunately your video doesnt prove that Viper is taking control of the audio, it just proves the sound changes if you turn the analyser off, hopefully someone else will chime in and say what it happening here.
 

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    HuiFei - 2 DIN Pure Android 4.2.2/4.4.2/4.4.4 RK3066/RK3188 Car Stereo Radio Head Unit. KGL/KLD/RM/GS/JY/MD/KYD/BN/HA [ROOTED]

    Moderation Announcement (added by @dark alex)
    Hi together this is an important announcement!

    As you knew Mike an me we were talking about a dedicated section.
    This is now achieved and I am requested by him to sort things out from here.

    I will split out some Key knowledge posts, for example malaysks Firmware-Post, to new Threads in our subforums.

    Developers
    Please if you create new work open you own Thread in the new forums. If you already have posted here probably wait until I split your post out or write to me to ensure I will split you out if you think I missed you or you have a critical release.

    Questionning Users
    Please open your own thread for your questions in our new section. I can not split out every question from here. This thread will be left over for searching so please if you have current questions just ask in our new Q&A-Section.

    I will start splitting up this thread in about one hour.

    You can find the new section at the bottom of this link:
    http://xdaforums.com/android-auto

    Thank you!



    This is a new thread for this car dvd that was first reported on comment #2224 of the AN-21 U thread.

    Probably you are here because:

    • you want to root your unit. Only units with ROMs 4.2.2 can be rooted (see below how). The only way to have a rooted 4.4.x is installing a pre-rooted ROM (see below how)
    • you have a problem (no internet, no sound, buttons do not work, bad mic quality, rear camera image not showing, door opening not showing, etc.
    • you want to upgrade your unit to a newer software that has sleep mode, personalized music app, personalized functions, root, xposed, can remap buttons, etc.
    All this is covered in this post and most of the problems that you can have are summarized in this post too. Please read this first post before asking. And use the search function of the thread, before asking. Thanks.

    TRICKS THAT MIGHT SAVE 1000 QUESTIONS ON THE THREAD
    Read below and here for basic questions asked and answered 1000 times.

    How to root my unit. Only 4.2.2 can be rooted with an app (see below). To have rooted 4.4x you must install a pre-rooted ROM (see below)
    Get sound when in reverse (thanx to @Keylo Lo)
    here
    Engineering/Factory settings password "126" (thanx to @blankers)
    This allows you to change logo, sound volume, SWC codification, etc.
    Activate USB debugging --> Go to Factory Settings and enter password "adbon".
    System sound is low compared to Radio--> Go to Factory settings and change volume levels
    GPS button does not trigger GPS app You need to choose predefined GPS app, in Settings--> GPS

    Get Into Recovery
    1 Press reset button and power button together
    2 After about 5 secs release reset button, but keep pressing power button
    3 When booting screen appears release power button.
    4 It boots into recovery.
    --Update 1-- some units without front USB have a different procedure
    Firstly power on the unit and then long press the power button and then reset. Then the unit will get three rings and you loose your hand on the power button and short press the power button again. (thanx @netay)
    --Update 2-- some others have this procedure (thanx @R4D3N)
    1. Turn off the unit by holding 3-4 sec the power button.
    2. Hold the RESET button + POWER button for 5 sec
    3. Release the RESET button and keep pressing the POWER button for 2 sec
    4. Release the POWER button and wait. The Recovery menu appears.
    5. With the Volume knob you can move up/down and long press on Volume/Power button to select the option.

    Get Into Bootloader
    The process is basically the same, with the difference that you need to have the computer attached to the unit via the front miniUSB (if you do not have a front USB, you will have to ask your seller how to get into bootloader mode)

    1- boot the unit as usual.
    2- plug the front usb of the unit to your computer usb.
    3- Then, push the reset button and the power button at once and keep them pushed. The reset button is the tiny pin next to the mp3 sdcard. The power button is the volume knob. You will hear the power cut throught the speakers.
    4- Release reset button and keep power button pushed. Now the unit will reboot. You will see nothing, just a black screen. Do not release the power button yet. Your computer will detect a " new hardware", that is the RolckChip. When you hear the windows noise of new detected hardware, you can release power button. It will automatically install the drivers.
    ------------------------------------------------------------------------------------------------------------

    HOW TO UPGRADE YOUR SYSTEM
    BEFORE UPGRADING YOUR UNIT YOU MUST KNOW
    • MCU your unit, there are many (KGL, KGL1, KGL2, KGL3, KGL4, KGL5, KLD, KLD1, KLD2, JY, GS, KYD, MD, BN, HA, MX), If you install the wrong MCU, you will brick your unit.
      To know which one you have. Go to Settings -->About
      If still not clear, see: here or here.
      If you cannot find it here, it probably means that you are in the wrong thread.
    • Resolution of your unit. 800x480 or 1024x600. If you install the wrong ROM, you will brick your unit.
    • Chip of your unit RK3066 or RK3188. It does not really matter, ROMs and MCU are compatible between chips.
    IT IS ADVISABLE TO BACKUP YOUR SYSTEM BEFORE PLAYING WITH IT
    Upgrading is supposed to be a safe operation, but you never know what can happen. So, before updating make sure that:
    1- To backup of your system the easiest way is download nandroid root from google play, and do a nandroid backup with TWRP format). Save it in your external SD.
    2- make sure you can enter in bootloader mode (see below how to)
    3- it is recommended to backup your apps and data (use titanium from google play). The update will do a factory reset.​
    FOLLOW THIS TO UPGRADE YOUR ROM AND/OR MCU
    0- Do a back up (copy the files somewhere safe) of your internal SD card memory. It will be wiped during the process.

    1- Download the ROM (Resolution 1024x600 or 800x480) and MCU (KGL, KLD, JY, GS,RM, MX, BN, HA) for your unit.
    ROMs--> repository This will get you a file named update.img. There are different "flavors" of ROMs.
    Code:
    - [user=853627]@coudu[/user] (rooted, stock). Early v4.0 and v4.1 have some problems.
    - [user=3590033]@Malaysk[/user] (rooted, with very useful mods, some come with NEXT launcher)
    - [user=6041319]@dsa8310[/user] (rooted, almost stock)

    MCUs--> Latest MCUs by Malaysk are here . This will get you a file named mcu.img

    2- copy the update.img you have chosen to the root of your GPS card.

    3- copy the mcu.img for your specific unit to the root of your GPS card (if you do not want to update mcu.img, you can skip this step)

    4- insert back the GPS card to the unit. If no window pops up, reboot the unit. At boot, the presence of update.img will be detected and a pop up window will ask you whether you want to update your unit. It will automatically reboot into recovery mode and update your unit. Once done, remove update.img and mcu.img from the root of the gps card or you will be asked every boot for an update.

    5- In some Coudu´s (sd partition of 3Gb) and Malaysk´s ROMs versions, it is necessary to do a factory reset just after the first boot so that everything works properly.

    6- If you lost buttons or radio after the upgrade --> Go to Factory settings (password 126) and choose the proper canbus for your car and the radio chipset. You can change boot logo if you want.

    * If you get Google services error after upgrading to KitKat see this and this
    ------------------------------------------------------------------------------------------------------------------

    THINGS YOU MAY WONDER BEFORE BUYING A HEADUNIT
    Code:
    [B]- Boot Up:[/B]: time is around 30s. 
    [B]- GPS[/B]: GPS positions very fast. TomTom, Navigon, Sygic,  and regular off-line GPS work. Navigon and Sygic have some problems with some ROMs
    [B]- Stand by mode[/B]: Latest ROMs and MCU have the possibility of choosing stand by mode with various times chosen.
    [B]- Radio:[/B] radio stations are saved as frequencies
    [B]- Bluetooth contacts:[/B] contacts are saved on the device.
    - Works fine with Bose system (Audi)
    - Possible ground loop noise that needs some tricks to be removed (see section problems) 
    - Torque works and can run in parallel with A2DP
    - ELM327 works (might need special app like CarService in very weird cases)
    - Camera works (might be better to get the one with RK3188 chip)
    - There is no automatic brightness control because the unit does not have light sensor, but there are apps that can help
    - The touch screen is extremely responsive. It works as good as most phones.
    -------------------------------------------------------------------------------------------------------------------

    HOW TO ROOT AND INSTALL TWRP
    Instructions to get root (thanx to @webdude12)
    It only works for Android 4.2.2. If you want to root 4.4.x you need to take apart update.img and inject SuperUser app (this is only for experts as @coudu, @Malaysk, @dsa8310 ). The alternative is to install a 4.4.x pre-rooted image and you do not have to do anything else. See below in HOW TO UPGRADE YOUR UNIT section how to do it.

    If you want to root your 4.2.2, download Root Master 2.1.1 here
    Code:
    1- Install the APK.
    2- Make sure you are connected to WiFi and you have an internet connection.
    3- Open Root Master (do not upgrade to newer version unless you can read chinese, The newest version has different options, all in chinese. Version 2.1.1 just has a button that says "root".))
    4- Press root button
    5- Chinese characters will flash across the screen.
    6- A second popup box will appear, press the purple button.
    The app will automatically install SuperUser.
    This program connects to servers oversea sending hardware information. The downloads a script that will attempt to root the device. If the first script fails, it downloads additional ones. Future goal is monitor this communication with a data logger and find which script works, so that a unique program can be written to achieve root.​
    ------------------------------------------------------------------------------------------------------------------

    How to install TWRP recovery (thanx to Abdul_pt from Freaktab and 1-2-Hak and coudu)
    You do not really need to install TWRP unless you wanna mod the rom yourself, if you mod roms you will know that already.
    - a.t.m. you need a mouse to use TWRP because touch is not working yet
    - if you install TWRP, you will not be able to update the update.img and mcu.img the way it was explained above.

    If you still want to install TWRP:
    Android 4.2.2 800x480
    Download files here
    And follow the post by 1-2-Hak

    Android 4.4.2 800x480
    Follow this: this

    TWRP for 1024x600
    See this post
    ------------------------------------------------------------------------------------------------------------------
    TRICKS AND MODDED APPS THAT DO WONDERS
    • Install app without adb when regular install does not work
      Sometimes the app won't install normally and you need to sideload it.. This means that you need a computer and adb wifi. There is another way with which you won't need a computer. You just need to install a terminal emulator (you need root ).
      1- Download the terminal emulator app you prefer
      2- Download the app you want to install to /mnt/sdcard
      3- Open terminal emulator
      4- On the terminal navigate to /mnt/sdcard by typing
      Code:
      - cd /mnt/sdcard
      - su
      - pm install "NameOfTheApp".apk
      Done, you are app is now installed.

    • Modified Radio Apps
      To install radios you need to copy the app using ESExplorer or Root Explorer straight to /system/app in place of MTCRadio.apk
      Radio version 4.2.2 800x480
      Radio version 4.4.4 800x480

      Radio version 4.4.4 (Malaysk v1, aka alive)

      [*]Car Service. Allows to use SWC and buttons with 3rd party apps (Latest Malysk ROMs already include it).
      Download here (thanx @@KeiserSozeyFr)
      If it does not install, copy directly to /system/app

      [*]Microntek HeadUnit Service Latest Malaysk ROMs include it. It allows to use SWC with non native apps. It allows to make calls and send messages from Android part of HU, and to show toasts. You can find it straight on Google Play.
      There is a modified version (probably outdated) with early start of services here

      [*]Moded Music app. Two versions. One is the original with expanded list, so full names can be seen, and the other one has the list integrated in the background so it is always visible.
      http://xdaforums.com/showpost.php?p=53352994&postcount=894 (thanx to @dark alex)
      anoher one here

      [*]Set Loud Latest ROMs do no need it.
      Method 1:Method 2:

      You need Tasker or Automagic or similar app.
      Set up a task that runs at boot with the following code as "shell command"
      am broadcast -a com.microntek.irkeyDown --ei keyCode 44
      How to: http://xdaforums.com/showpost.php?p=53553617&postcount=1058
      [*]Speed-sincronized volume increase (AKA GALA)
      This app will modify the volume of your unit according to the speed. The amount sensitivity can be adjusted.
      http://xdaforums.com/showpost.php?p=53441283&postcount=931 (thanx to @dark alex)

      [*]PowerAmp Toast (thanx @agentdr8)
      This app will show title/album/album art when tracks change while PowerAmp is in background.
      http://xdaforums.com/showpost.php?p=53964813&postcount=1461

      [*]Rear Camera without icons (icons were included in the KitKat version 4.4.2) (thanx @typos1 and 4pda.ru guys)
      http://xdaforums.com/showpost.php?p=56888840&postcount=5096

      [*] KLD Launcher 4.4.2 with bigger date
      Launcher see picture

    ---------------------------------------------------------------------------------------------------------​

    FILE REPOSITORY, FIRMWARES and MCUs for KGL/KLD/GS/RM/JY/MD


    Some of the firmwares are... (list not updated)
    • Custom KitKat 4.4.2 by 4pad.ru (RK3066)
    • Coudu's 4.4.4 v4.2 (RK3066) (January 2015 release), see here
      - Coudu v4.0 and v4.1 have some problems. v4.2 is good (specially releases 150113 for KLD and 150113 for KGL). You might need MTCControlSettings.apk as in these latest releases coudu removed it.​
    • Malaysk's roms (RK3066) w/ and w/o NEXT launcher, also 4.4.4 here
    • JY Android version is this one
    • Malaysk's roms (RK3066) version 24/05/15 Download here. It allows the remapping of the radio buttons.
    • dsa8310 JY rooted ROM 150513 (RK3188) Download here
    -------------------------------------------------------------------------------------------------------------------------------

    WIKI-Page
    Basic info on everything
    Another wiki with general info here
    -------------------------------------------------------------------------------------------------------------------------------

    PROBLEMS AND SOLUTIONS FOUND BY THE USERS
    Unfortunately the first issues with the promising unit arrived.
    20
    http://huifei.fs-fileserver.de/

    Good news!! Now I'm going to lay out all of the latest firmware on the server http://huifei.fs-fileserver.de/content/firmware/MALAYSK%20ROMS/

    Thank dark alex
    17
    Good news for Sygic users :)

    I have found solution how to make Sygic to work on ours devices.
    It is wery easy and it finaly works for me, and I would like to share it with others. You can make it in two steps.
    First of all you have to install rooted ROM. I have install update_4_4_4_RK3066_1024X600_7_MAL_14_05_2015.rar
    You can find rooted rom for your device on this link https://drive.google.com/folderview?id=0BxmzvLRI7-eNeVA2SWkwM1pLZ28&usp=sharing#listv
    When you done you have to install Xposed IMEI Changer. You can find it at Google Play Store and start the app. Xposed Installer will prompt up and you have to give permissions to IMEI Changer and to install Framework if you did not already.
    Than yo have to open IMEI changer and copy IMEI code from your smartphone. (I have HTC M7 and IMEI code you can find in Settings-Info-Tlefon identity.
    After that you have to reboot device and open IMEI changer to see is it new IMEI applied.
    If it is, than you have to go to Google Play Store, install Sygic and download maps.
    Result you can see on attached image.

    I hope that it will work for others.
    16
    NEW from 27 October, 2015
    Only for RK3066 800X480

    Most global firmware update from me, perhaps a few months to 800X480.
    Changes, updates, deletes, transfers, etc. lots of. I write about everything I will not. Here are just a couple:
    +++ Android part of 10 October.
    +++ New NEXT launcher - a slightly redesigned our radio me :)
    +++ The new boot logo (the very first - that appears when you download a few seconds)
    +++ Added gradient Status Bar (Settings - System)
    +++ A new panel ext. programs and recently run (Settings - System)
    +++ Added new tab in Preferences - Advanced Settings screen (think there will understand)
    +++ Fixed program MTCBlueTooth - incorrectly displays the number of the incoming call
    +++ Well, and so on. D.

    Firmware I have not done a simple upgrade - erased all the data. Make a backup of your applications (System Settings then do by hand - not to restore from backup !!!)
    HERE
    15
    NEW from September 6, 2015
    Only for RK3066 800X480

    +++ Android base on September 3, 2015
    +++ Many,many other fixes and additions.

    Download HERE