yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] TieNN89:
Couldn't get the new firmware from the Joying web site to work so I reinstalled the latest Malaysk firmware 1024x600 RK3188 and got WiFi to work YAY!

But the issue here is when I went to the Bluetooth app or menu in the settings I couldn't detect anything :S

And under Device name it was blank and same with the pin (Normally it is pre entered already)

So I entered the details and still nothing

So I thought it might have something to do with the latest MCU that was in the JY firmware so I went back to an older JY firmware and I was back to the boot screen issue but this time I took note at when it was doing the installation and this error was present

I attached the picture

So I think I've buggered something :S

I've pulled ribbon cables off and also the CPU module off but I made sure they were seated back in properly so not sure what's going on.

If it was the CPU I would imagine I wouldn't of got very far after it turning on and if it's one of the ribbon cables to the screen I would imagine the screen would of played up

But it's just the Bluetooth now :(
[MTCB Android Head Units Q&A] TieNN89:
LOL experimenting isn't exactly what I'm doing

Trying to get it work again after the mic mod is proving difficult :crying:
[MTCB Android Head Units Q&A] halloj:
Why don't you load your original fw and go from there. If the BT doesn't work you have probably

been soldering a bit too much. Check with a magnifier your soldering spots.
[MTCB Android Head Units Q&A] Valaran:
i've edited the wiki with the root access password on hu 4.4.4 (works on kld stock rom): *#hct#root#
[MTCB Android Head Units Q&A] TieNN89:
Foudn my issue

There was a bridge on my solder between gnd and vdd

I've fixed it but it looks like I've done damage elsewhere
[MTCB Android Head Units Q&A] ktibor69:
I would like to change setting.apk.

I have a mistake.

I did this:

I deleted setting.apk in system/Priv-app folder with Root Explorer.

I copied your setting.apk to system/Priv-app folder with Total Commander.

And removed in system/app folder MTCAmpSetup2.apk.

And rebooted.

Now my android doesn't show the setting.apk and doesn't work.

How can I solve this issue?

I didn't copy old setting.apk and MTCAmpSetup2.apk.
[MTCB Android Head Units Q&A] ngandjui:
TWRP

Hi everyone

I bought this unit from aliexpress (http://www.aliexpress.com/item/1024...io-DVD-GPS-Navigation-Player/32434011926.html) wich came with MTCB-JY-V2.68

i was able to permanantly root using the *#hct#root# method

I proceeded to install TWRP so that i could backup the rom before installing stuff like xposed in case anything goes wrong

The unit already had a flash_image in /system/bin, I saved that image and used the one provided in the first post but i couldnt install twrp with that one so i restored the flash image that was already included and the flash process went fine with that one

I used the turorial on the first post to flash twrp (http://xdaforums.com/showpost.php?p=56988649&postcount=5328)

but now when i boot into recovery only the exernal sd card is able to mount.

everything esle doesnt, system,data, sdcard .... so I basicly cant backup anything

Help please
[MTCB Android Head Units Q&A] Highway007:
Mi Bluetooh OBD stops to work in mi KLG1 4.2

Can't be paired

Another new one OBD does not work neither, but they both runs properli in my phone.

¿Could anyone help me?
[MTCB Android Head Units Q&A] Malaysk:
It was not necessary to remove setting.apk. Replace the file and set the file permission 644 and I recommend this program - Root Explorer

Here native files from the firmware 23
[MTCB Android Head Units Q&A] halloj:
The only one to blame is yourself.

---------- Post added at 03:47 PM ---------- Previous post was at 03:46 PM ----------

Simple, go in to recover and load the fw again.
[MTCB Android Head Units Q&A] ktibor69:
How can I set the file permission 644 with Root Explorer, what do I have to check in window?

Are the attached native files good for Malaysk update_4_4_4_800X480_RK3066_23_MAL_06_07_20 too?
[MTCB Android Head Units Q&A] Malaysk:
Long tapom on file setings.apk - permission -first pillar of all the checkboxes, second only to the top tick.

Are the attached native files good for Malaysk update_4_4_4_800X480_RK3066_23_MAL_06_07_20 too? ----- Yes
[MTCB Android Head Units Q&A] krustymk:
Does anyone know how I can get the SYNC app for using this headunit on Fords.?

I prusume if I install a rooted ROM ill lose the SYNC app?

Cheers
[MTCB Android Head Units Q&A] Mat.:
Thank you !!!!!! :good:
[MTCB Android Head Units Q&A] agentdr8:
I think there's also a factory settings password to eject if busybox doesn't have it.

TWRP on these headunits is not used for backups and rom flashing. Backups are not needed anyhow, since you can just flash the original firmware.
[MTCB Android Head Units Q&A] nixfu:
I have the same joying board, it appears the line goes directly from the MIC+ to the ribbon cable that connects to the front panel. There is no easy capacitor next to the bluetooth board to disconnect. I didn't want to trace the circuit all the way up the front panel, and so I ended up just cutting that trace on the board that comes off the 4th pin (MIC+) using a xacto razor knife and then soldering the cable to the pins on the other side of the board.

See the PICS in the Joying Units topic for more info:

http://xdaforums.com/showpost.php?p=62682228&postcount=11
[MTCB Android Head Units Q&A] gmanor77:
Hi,

Do you know this password?
[MTCB Android Head Units Q&A] ngandjui:
thanks for the reply

what do you mean not use for rom flashing. i though the first use of twrp was to be able to install other roms.

Also in my case i'm mostly looking for a safeway in case something goes wrong. At least on the original recovery i had the reset to factory options. but with twrp being unable to mount anything i cannot even reset via twrp

If i factory reset from the device settings will i get the original recovery back ?

i also went to the joying website to see if i could find my original firmware but no luck and on top of that een if i had the firmware how would i restore it ( wifi ADB ?)

thanks a lot
[MTCB Android Head Units Q&A] agentdr8:
I believe it's keject

Rom flashing can only be done by the stock recovery on these headunits. You can find all of the stock firmwares on the Huifei FTP server, listed on the first post. TWRP is used on these headunits only for bootloop recovery, and other root-level operations, assuming you had it flashed prior to flashing whatever caused the bootloop. It's really just for devs to make the process of developing easier.

Factory reset doesn't work if you have TWRP installed as far as I know. It relies on the stock recovery to perform the wipe.
[MTCB Android Head Units Q&A] peti007:
KLD RK3066 800x480 20150818 update + USB DAC

I get a KLD (RK3066, 800x480) update from EONON. I flashed it two weeks ago and use it without problems. There is no MCU in the update only Android.

Before I had BT auto-connect issues (not auto-connected my phone sometimes), but now seems to be good. The boot screen before the car logo is the Android 4.4 Media... not the new Chinese version. The *#hct#root# password works and get permanent root without installing any root app. The sound quality seems a little bit better (maybe just placebo) and there is no hissing noise like with the Malaysk-JY fw. (Thanks Malaysk for your hard work, it is not your fault, but JY's! :svetius:)

I asked it for the "swap canbus next prev" Factory settings option, but it not works. I think it need a new MCU to work. Mine is 2.64 modified by Kumarai&DarkLeo. Is there anybody use this option and works?

KLD RK3066 800x480 - 20150818

Dear devilsoft!

I use Twilight for brightness control and works fine, but after warm boot not restart. Could you solve this? Thanks!

USB DAC:

Is there anybody who tried it and works? On 4pda I read aluver made it! But there is no much info.

4pda.ru USB DAC by aluver

I have an idea to install USB DAC (works just with Android apps) and an RCA mixer. In this way the BT handsfree and FM still sounds.

Do you know if there is an USB DAC installed the sound comes only from it and the integrated "sound card" is muted on the Android board?
[MTCB Android Head Units Q&A] ngandjui:
in that case i might be stuck

i downloaded the stock rom

What will be the method to reflash the rom if i had twrp ? can i do it trough bootloader mode with odin (thats what i do with my samsung) or ADB ? can you provide a tutorial link ?
[MTCB Android Head Units Q&A] powersampo:
Hi I'm new need help

I have a erisin es1074a

mcu

MTCB-KGL-V1.77

14 May 2014 17:49:13

Model number

S07

Android Version

4.2.2

I would like to upgrade to 4.4.4 but do not like or find files

I hope your help serve me

Thank you

Hola soy nuevo necesito ayuda

tengo un erisin es1074a

mcu

MTCB-KGL-V1.77

May 14 2014 17:49:13

Numero de modelo

S07

Version de Android

4.2.2

Quisiera actualizarlo a 4.4.4 pero no se como hacerlo ni encuentro los archivos

Espero que vuestra ayuda me sirva

MUchas gracias
[MTCB Android Head Units Q&A] Bmwiesel:
Android car headunit

Hello speaks any of you German. I have a few questions.
[MTCB Android Head Units Q&A] kruuth:
Flash and clear didn't help. I had to :

1. Flash and Clear

2. Flash

3. Factory recovery

4. Flash

That got it back.

Now, I plugged in an external wireless to the USB. In build.prob I set interface to wlan1 but it will not actually come on. If I do iwconfig it is clearly recognized as a wireless device. What do I need to do in order to use it?
[MTCB Android Head Units Q&A] bwillet:
I'm just getting this whole thing figured out... Bought the Joying RK3188 1024x600 JY unit, so far it's pretty good. I've played with both stock and Malaysk ROMs, good stuff! I have one issue though that I couldn't find any discussion on (I did search, I promise). When using any alternative launcher (have tried Google Launcher, Nova Launcher, even the old ADW Launcher EX), my widgets just won't load. I'm not looking for a super-busy home screen, but I do want Google Play Music, Listen audiobook player, and one Torque widget. Even just doing one of these widgets, after a cold boot the widget is just not responsive for a really long time. Anyone have any ideas on that? Would love to have Nova launcher up there...

One other thing, the only way I've been able to get past the Moscow time zone issue with the Malaysk ROM is to load a third party app called "ClockSync". And I've seen the rom and this app "battle it out" so to speak, though I am pretty sure I have all the auto time stuff turned off... I've tried the set to off, reboot, set to off again thing, and every combination I could think of, with no luck. I will keep trying, but wondering if anyone has come up with a perfect solution?

Thanks everyone for all the awesome support!
[MTCB Android Head Units Q&A] TieNN89:
I've checked the USB port and they have 5v and it doesn't have any fans.

I did manage to get WiFi working so I guess that works now too but I'll check again later.

So the vdd to the Bluetooth card should be 5v? Because I'm getting 1.3v.

There's a 78m05 near it and it has 8.9v on one end and 4.9v on another.

I followed the trace back on the vdd and it looks like it runs through a bunch of capacitors/resistors
[MTCB Android Head Units Q&A] nixfu:
Did you try the "hold power and reset" method?

---------- Post added at 03:59 AM ---------- Previous post was at 03:57 AM ----------

yeah. I had to manually set my timezone in the settings. I think maybe Malaysk has it set manually to moscow time in his rom image and that is why it keeps coming back on you because auto-set it turned off and it is manually set.
[MTCB Android Head Units Q&A] agentdr8:
You would put the stock recovery on an sdcard, along with the flash_image binary, and hope that you can flash the recovery partition from within TWRP. If that doesn't work, you could possibly try using dd to overwrite the recovery partition.
[MTCB Android Head Units Q&A] doctorman:
what is patched in this? how is differenet from the original?

is it for both high res and low resolution screens?
[MTCB Android Head Units Q&A] agentdr8:
It was just an exercise to see if I could apply [MENTION=6916576]sabruri1[/MENTION]'s patches via Dexpatcher. I think he's trying to fix the AF issues.

I compiled the patch against the MTCRadio5.apk from an older KLD 800x480 rom.

Incidentally, this is why I'm partial to Xposed modules; instead of having to compile the patch against every version of MTCRadio, the module just needs to hook the proper methods, which are present in all MTCRadio packages. Then it doesn't matter which rom or headunit variation it's used on.
[MTCB Android Head Units Q&A] doctorman:
I think the AF USA issue should be reported to Chinese companies to be fixed instead of having someone patch any new release..

If someone can explain the issue in a understandable way I will get in touch with Joyous programers and have them fix it.
[MTCB Android Head Units Q&A] weapons777:
Early Start Command

Good Day Everyone,

How could I add a shell command to install-recovery.sh?

Eg. Every time I start the unit I would like to delete files older than 3 days in a certain folder with the command:

find /some/dir/goes/here/* -mtime +3 -exec rm -rf {} \;

Thank you very much in advance.

Regards,
[MTCB Android Head Units Q&A] 3lectriclazer:
Output screen through yellow composite cables

Wondering if anyone knows if you can output video of the screen through the composite cables?

I have been searching everywhere reading everything and I can't find an answer. I know that when you enter dvd mode it plays the video on both the headunit and whatever screen is plugged into the composite cables, but I'm wondering if I can mirror whats on the screen to another screen all the time.

I currently have been playing with Malaysk's KLD 4.4.4 800x480 June 11th Rom with MCU version 2.30 and have managed to cast my screen to a chrome cast to mirror it to another screen, but that requires that I then feed the sound that has then been "Casted" to the chromecast back to the headunit by opening the AV connections app. Which so far has not been ideal by a long shot. Casting the screen is either a too much of a load on the RK3066 cpu or the wifi unit because when I run pandora and start the screencast the music cuts in and out for the first 15-20 seconds and then smooths out until the next song starts and it does it all over again... This is clearly not ideal and if anyone can help with getting the screen to output through the composite I would be most grateful to!

Also, a simple question, can I upgrade to the new MCU version 2.64 for KLD without having to factory reset or anything? Just follow the instructions to put it on the gps sd card and run it?

Thanks,

Ethan
[MTCB Android Head Units Q&A] fabien_m2002:
Hello,

do you think i can install your image on my JY 1024x600 RK3188 bought in Joying store with MCU JY v.2.59 without risk?

I installed the last firmware named 1024x600 dated 3 sep from the joying blog but not rooted.

Thanks

Fabien
[MTCB Android Head Units Q&A] pk313:
Hi [MENTION=6916576]sabruri1[/MENTION] is try to fix the AF problem that affect all units with any version of MTCRADIO

What's appen is that the sistema is not able to swat to the strongest frequency of same station when signal come weak

I'm already in contact with Rambo of joying ..he say that is reporting all issues to the developers. ..but isn't so easy to explain the problem...probably he never seen how AF sys have to work

The problem is that Rambo of joying say that was the first time that someone report this problem..nobody before ..so after pages and pages to explain I make a video also of mtcradio

Sabruri1 said me that on Radioactivity no commands are present to execute the AF command

I think that joying developer will take more seriously in consideration the problem if also you can contact his..

This is the small screenvideo

You can see that I'm driving with a station receiving (with alternative frequency already receiving good)

But I wait until station is very weak but system don't swap ...I will swap manually to the new frequency

And at the end I show how radio receiving very good ..with search....and I try all radio function

I hope u can help us

And many thanks to all persons and developers that want to help for this terrible problem around alpes

https://drive.google.com/file/d/0B1...UZJVzgzT1hINUFFZEpjUkpz/view?usp=docslist_api

Inviato dal mio SM-A500FU utilizzando Tapatalk
[MTCB Android Head Units Q&A] ReshamG:
Can you share link of your ROM and is it possible to dirty flash your ROM on future updates?

Cheers
[MTCB Android Head Units Q&A] fabien_m2002:
Thanks for your support.

What are main differences between JY and KLD in favor of last one? (sorry i am a newbee in the universe of android head units and did not find in 1st post)

And your custom KLD enhancements?

I think user data partition is mainly to keep all users apps and settings after installing new firwmare release.
[MTCB Android Head Units Q&A] Corsatr:
Hi [MENTION=535343]all[/MENTION]

have some problems with my RK3006 Android 4.4.4 Device for BMW E90 Series.

Steering Wheel funktion, PDC, ACC Can Bus funktions work perfect, but the device does not switch to Reverse Cam, No PDC Graphik will be shown. Reverse Wire from Can Interface is conected.

Does anybody know about these Problems?

Thank you

greetings from Germany

Jul
[MTCB Android Head Units Q&A] TieNN89:
Correct, it seems just the BT is not working

But in saying that when I tried to installed a different firmware JY with update and mcu I get the errors in the images that is attached

Check backup....

E:1 parse errors

handle script error! ignore...

.....

And a bunch of start and aborted at the bottom

When it goes to reboot it get stuck on the boot splash screen.

I tried updating with the Malaysk and it runs fine and it's able to boot fine but that's only with the update file

So I think its the MCU file that the unit won't accept any more

Not sure if it's a sign of other things that has died as a result

I'll pull the unit out of the car tomorrow and rig up something to run it on my desk so I can investigate
[MTCB Android Head Units Q&A] halloj:
To what is the reverse wire connected to? Is it activated positive or negative. It must be a positive (12V) that activates

reverse cam.
[MTCB Android Head Units Q&A] Tumke32:
DAB+ converter.

Which converter do you mean? I have a audi a4 (2005). Cosmically it would be the best solution to use my original aerial. But my original aerial is mounted in my backwindow. Correct me if i'm wrong but I don't think it's possible to use my original (amplified Aerial) to receive the DAB+ signal. I also need a converter for the aerial coax connection on my usb dongel to the aerial connection.
[MTCB Android Head Units Q&A] Malaysk:
NEW from September 6, 2015

Only for RK3066 800X480

+++ Android base on September 3, 2015

+++ Many,many other fixes and additions.

Download HERE
[MTCB Android Head Units Q&A] TieNN89:
Yes I'm well aware its not interchangeable but that's the correct MCU for my model and I have used it in the past I was just going back to an older MCU and update that I knew worked in the past but it no longer works
[MTCB Android Head Units Q&A] TOMMYX2:
http://www.carjoying.com/2-din-car-g...din-audio.html

i bought this one:

my question is does the Malaysk Rom work with the radio,the specs are the same.

JY-UQ124 = RK3188 Quad Core, 16 GB Flash, 1024*600 Screen

Thx
[MTCB Android Head Units Q&A] ReshamG:
Sorry for noob question, I have your Aug 16 ROM. How do I update to this latest without loosing data and apps?

Cheers
[MTCB Android Head Units Q&A] doctorman:
I emailed the Chinese developers with the AF issue if they get back to me I will let you guys know.

Never knew about "Alternative frequency" option for Radio. learnt something new, Thanks.

I think there was another patch for USA grouping in the radio that someone patched, but since that does not apply to all over the world maybe harder to request. I personally never use that myself either.

---------- Post added at 08:16 AM ---------- Previous post was at 08:15 AM ----------

load in to Recovery

install the ROM from your USB/SD in recovery by choosing the option that lets you keep DATA.

---------- Post added at 08:18 AM ---------- Previous post was at 08:16 AM ----------

Not sure why people ask simple questions like this...

You have a JY unit so yes you are in the right forum..

chose Malaysk ROM that matches your specifics

Quad core High res. and enjoy ..

Dont forget to say thank to Malaysk or donate to him.
[MTCB Android Head Units Q&A] kruuth:
becuase getting to it and doing the work is nearly impossible for me. I keep telling you this. I was in an ugly wreck a few years ago and I don't have the motor control of my hands to actually take the unit out and modify the antenna. Unless you have a step-by-step photo guide i can use and give to someone to do, adding an external USB wifi adapter is really my only option.
[MTCB Android Head Units Q&A] fabien_m2002:
Yes it should work but what about physical buttons, will they work too?
[MTCB Android Head Units Q&A] chipyy94:
Everything will work.
[MTCB Android Head Units Q&A] Corsatr:
I have conected the reverse wire from Device to reverse conector on Can Interface.

ok i will check 12v
[MTCB Android Head Units Q&A] halloj:
If you don't get 12v under the dash, next option is to connect your unit to the white back lights 12v. That's the way I'm doing it.
[MTCB Android Head Units Q&A] Nicolasfoto:
We ask these stupid questions because we are not sure.. it's a huge investment for some of us and frankly this thread is daunting.. not everybody has been here from post one. I have been on xda for a while and have rooted many phones. I am still not sure which unit to go with every day there seems to be conflicting comments about what is right and whats is better..

Please be patient with us newbies here:D
[MTCB Android Head Units Q&A] pk313:
Thanks again for the interesting...I hope that Chinese developers will understand the problem and will be able to make some fix

As I can repeated at Rambo of joying as soon there is some new fix to test...you can use me as drivebeta tester [emoji2]

as we already work with Sabruri1 on Italian dedicated thread

Inviato dal mio SM-A500FU utilizzando Tapatalk
[MTCB Android Head Units Q&A] ReshamG:
Why is Malaysk's ROM downloading always pain. ETA 15 hours. :eek:
[MTCB Android Head Units Q&A] Malaysk:
http://huifei.fs-fileserver.de/content/firmware/KK%204.4.4%20MALAYSK%20Custom%20ROMS/
[MTCB Android Head Units Q&A] 9_Mad-Max_5:
Improve Internal MIC

Hello,

under all these pages I didn´t find what I´m searching for.

So her is my issue, i want to improve the quality of the internal MIC.

My unit is a Erisin ES 9405 which is based on an KGL V2.

I fixed the MIC sound to the BT-Board, and with this Forum the telephone is pretty awesome.

But now the voice control could be a lot better.
[MTCB Android Head Units Q&A] typos1:
I would guess that your car uses CAN Bus for SWC, but I m not certain, what does it say on the Paser list ? I deffo saw a list from them that listed whether cars were CAN Bus or resistive SWC.
[MTCB Android Head Units Q&A] parazit26:
Yes my car is using CAN BUS so i guess both the paser or the connects2 interface should work.
[MTCB Android Head Units Q&A] MasterPrenium:
Hey guys,

I'm currently thinking of buying a HuiFei KGL-8401G (VW Model), does anyone got a good review for it ? Are all OEM functions working (A/C display, PDC ect ...).

What do you think of this unit in general ? Does it support external microphone ?

Thanks ;).
[MTCB Android Head Units Q&A] typos1:
Read the thread for answers to your questions.
[MTCB Android Head Units Q&A] matas2007:
Hi, I bought this unit for my audi a4 2002 and it came with canbus decoder. Is it normal that it does not power on when my key is not in ignition mode? For me it sounds not right. I might want to watch movie or let passangers listen to radio but I can't do this without key in ignition mode! Ebay seller claims that it is fine and it should be like this... Am I stupid not believing him??