yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] maverick_37:
Hi,

I use a 3G dongle and it works well, no extra setup needed to be done.

Maybe Europe is different but I use T-Mobile one of the main providers here.

Only thing I had to do is put the password/code on 0000.

That's it.
[MTCB Android Head Units Q&A] doctorman:
MAke sure you have the MCU for your model

JY 2.59 is the latest

go to the recovery and update the MCU

see if that helps

if not Update the ROM from the recovery with any HD ROM (Malaysk is one the best)
[MTCB Android Head Units Q&A] Stickypinkyfinger:
My model is the JY 1024x600 RK3066 and found it hard to find much ROMs for this model. Just want to get this correct, I can mix ROMs as long as they are the same size display version and same chip but the MCU has to be for my model?
[MTCB Android Head Units Q&A] agentdr8:
Posted a new version to the repo and that post. Give it a shot.
[MTCB Android Head Units Q&A] doctorman:
yup
[MTCB Android Head Units Q&A] Stickypinkyfinger:
OK thanks for the reply. Did now try this but now when I go to flash anything it takes it time then when it goes for the first reboot, it then comes up with "no command" also now when I go into recovery it says "no command" behind the options. Any idea what's happened?
[MTCB Android Head Units Q&A] doctorman:
sorry that is above my pay grade hopefully [MENTION=456516]typos1[/MENTION] can help you
[MTCB Android Head Units Q&A] Enc0der:
So am I, I'm talking about the software power button on the notification bar on Malaysk ROM.

It does absolutely nothing on my unit when short pressing it... doesn't really matter to me, but just saying.
[MTCB Android Head Units Q&A] Stickypinkyfinger:
[/COLOR]

OK thank you for your help. I will try typos1
[MTCB Android Head Units Q&A] englezu14:
i have a little problem with mine , i have KGL rk3066 i don`t know what resolution

mcu v1.72

kernel 3.0.36+

4.4.2 kitkat

sometimes my 3g dongle is blocked , with signal , but 3g don`t appear , sometimes with 3g but blocked , the signal bars when it blocked it didn`t grow or down .

when is blocked no matter what ipostaze, i tried to turn on / off with powertoggles or mobiledataconnection app but it don`t work or change in anyway.

the speed of 3g is slow, before when i have 4.2.2 original from erisin , the 3g never block , and the speed was good.

thank you , i ve see on the forum, an option to modify ppp file , but i don`t think that is the problem ,
[MTCB Android Head Units Q&A] Siffion:
I would look at updating your MCU file 1st. I had similar issues with an older MCU version, all is now OK though
[MTCB Android Head Units Q&A] englezu14:
thank you for reply, what mcu you choose?

qq

1. how to change the mcu / at rom i put update.zip on sd

2. if i want to downgrade mcu, i can ?

3. what it change mcu ?
[MTCB Android Head Units Q&A] Siffion:
On the 1st page there is a link to all. The MCU versions check your version 1st in Android settings and download that as restore file, then download the latest KGL MCU 2.53 iirc example in my bmw the file is kgl5-2.53
[MTCB Android Head Units Q&A] englezu14:
i ve read , for me is kgl 1 , latest question and i will go to car , on gps sd card i put only mcu.img and turn on the navi ? and will appear the android recovery ?
[MTCB Android Head Units Q&A] Siffion:
You'll need to put the unit into recovery mode, again explained on the 1st page. In recovery mode you can upgrade the MCU that you placed on the root of the GPS card
[MTCB Android Head Units Q&A] akrasky:
thanks for your explanations: now I understand ;)
[MTCB Android Head Units Q&A] englezu14:
i update with succes at mcu kgl 2.53 , how can i have the short press of volume work like "return" in 1.72 it works
[MTCB Android Head Units Q&A] Marius B:
Hi !

Tell me i download mtc vtc zip file , how can i change.

I install virtuos studio but i dont know in what file can i make changes .

I want to change color for some botton like call from bluethoot apps and more ....

I want to make my on version for all apps.

thanks for your support.
[MTCB Android Head Units Q&A] typos1:
Its in system/priv-app or system/app plus its on the fileserver.

Trypos1, he is my 3 legged cousin, he is very talented with Android and he runs very fast as well :)

$35 !! ?? This one is 5$ and its in Hong Kong, I m sure it wont take that long to get to you :

http://www.ebay.co.uk/itm/TB2929-TB...for-Car-Audio-TOSHIBA-Brand-New-/110913469563

Why do you keep saying this ! ? You should update your MCU when a new one becomes available and only downgrade in the unlikely event there is an MCU related problem.

No, its not universal, its made by an Indian developer who's customers are the manufacturers of these units. The launchers are different and so are the apps, phone, radio, music etc, there also may be other differences - for instance some people have said that KGL ROMs sound better. KGL have not released many updates lately for some reason. ROMs are not based on KLD ROMs.

Have you tried a factory reset after updating ?
[MTCB Android Head Units Q&A] OnkelDeffe:
[MENTION=1109654]karre[/MENTION]en: Is it possible to deactivate the amp chip? I am using an external amp and so don't need internal amplification. Perhaps this would also help in terms of heat and power consumption ...

Thx

Deffe
[MTCB Android Head Units Q&A] edit:
Quoting myself.... sorry about that

Is there a way to make the unit forget the last active app at startup? (I am thinking that this is the only workaround possible in my situation)

Thank you
[MTCB Android Head Units Q&A] MayfairDROID:
[/quote]Why do you keep saying this ! ? You should update your MCU when a new one becomes available and only downgrade in the unlikely event there is an MCU related problem.[/QUOTE]

I said this so he does one thing at a time. He is having android issues while his MCU works fine.. when troubleshooting, only try one fix at a time. That way if lore issues are caused you know exactly what you did to break it.

Once the audio issue is fixed, then update the MCU if you feel it is worth it.
[MTCB Android Head Units Q&A] Stickypinkyfinger:
Hi I'm having serious problems with my stereo and wondered if there is anyway to recover it. Picture 1 is the stereo I have. Picture 2 is the no command that happens when ever I go into recovery mode. Picture 3 you can see when ever I flash a update.image it gets stuck in this position for about 20 minutes. Picture 4 is after 20 mins it will reboot and stay here. Any idea what's happened and how this can be fixed?
[MTCB Android Head Units Q&A] ramdani1978:
Yes you can by solder the power IC sleep or mute pin to the ground.

But i forget the pin number, you can google it to find out.

Btw, i already did this and it significantly reduce the unit temperature
[MTCB Android Head Units Q&A] Stickypinkyfinger:
Was this for my issue and if so how do I do that?
[MTCB Android Head Units Q&A] oatja:
Does the MCU control button light?

My KGL unit light always on when unit "on" but if I turn of unit the it will sync with my headlight :(
[MTCB Android Head Units Q&A] Siffion:
Yes on my bmw any MCU version higher than 1.83 then the unit buttons are permanently on with the unit. On version 1.83 the unit buttons light up when I put my cars lights on.

What car and what MCU version are you using
[MTCB Android Head Units Q&A] typos1:
No, it want. I m not sure about your problem, will it not boot properly at all ?
[MTCB Android Head Units Q&A] Stickypinkyfinger:
No its not booting. All it does is sit on the android 4.4 load screen and that's it.
[MTCB Android Head Units Q&A] typos1:
I think it might be best if you opened a dispute, unless anyone else can think of anything ?
[MTCB Android Head Units Q&A] Stickypinkyfinger:
This was mentioned but im not quite sure what he means by this.
[MTCB Android Head Units Q&A] kevant69:
Hello, I have a KLD HU Model Number S07 MCU version MTCB-KLD-V2.20. I just installed Malaysk's roms (RK3066) w/ NEXT launcher and what an AMAZING difference.

I have 1 problem I have no Navigation. I had IGo but now its gone. I tried searching the thread for a solution but I cant figure out what to do. I do have the Nav SDcard in but when I hit the Nav icon iGo is not there. Any help would be appreciated.
[MTCB Android Head Units Q&A] DjCalvin:
With the Mazda, you can only use the volumes and track control. The phone runs off a separate Bluetooth module and does not run through the stereo. Try MCU 2.49 if your track buttons aren't working.
[MTCB Android Head Units Q&A] mike.s:
You have to reinstall it. Use apkinstaller, the iGo apk is on the GPS sdcard, in the iGo folder.
[MTCB Android Head Units Q&A] kevant69:
OMG why didn't I look there.

Thanks a ton Mike
[MTCB Android Head Units Q&A] typos1:
As I said earlier, thats nothing to do with your problem.

You may have to mess about with the wires, are you using a CAN Bus adapter ? Have you searched the thread, this has been mentioned before.

Are you talking about a separate OEM BT module on the Mazda or the headunit ? Cos the headunit one DOES run through the stereo, its just MCU controlled, but it CAN be controlled through the stereo and should be able to be worked from the SWC.
[MTCB Android Head Units Q&A] kevant69:
If the Torque app works with my Note 3 shouldn't it work with the HU?
[MTCB Android Head Units Q&A] jacekruf:
On my KLD i got working Torque and Dashcommand with generic bluetooth ELM
[MTCB Android Head Units Q&A] Siffion:
Torque works on my KGL no issues. What obd dongle are you using
[MTCB Android Head Units Q&A] kevant69:
I have a BAFX bluetooth OBD2 for android only devices
[MTCB Android Head Units Q&A] jacekruf:
In bluetooth settings i setup passcode like in obd. Torque connecting without any problems. DashCommand with little issues. It not displaying names of devices connected.
[MTCB Android Head Units Q&A] Reptile-X:
LOL oops sorry my bad, got too big fingers I guess, those first 3 letters are close to each other :D

Yeah, prices here in the Netherlands sky high sometimes, but the thing is, I order a lot from Aliexpress and Ebay, most my orders takes 2 to 4 weeks from China and I am going on vacation after two weeks from now, I don’t want to risk it, I need the unit on the road, besides I have to build in the external amp and such.

But when I come back from vacation I might try that Toshiba or other one which was suggested.
[MTCB Android Head Units Q&A] jacekruf:
I got little problem with Malaysk's last rom for 3066. When i drop down status bar every notification is white and letters are white ass well. I change colours for PowerAmp. But MXPlayer notifications are not visible. Can someone tell me how to change colour?
[MTCB Android Head Units Q&A] kevant69:
I haven't updated the MCU. Would that have anything to do with it?
[MTCB Android Head Units Q&A] agentdr8:
Try the VTS Getting Started guide. Or the XDA thread. I've never used VTS to do apk modifications; I mainly use it for decompiling and generating java sources.
[MTCB Android Head Units Q&A] jacekruf:
Dont think so. I just update mine from 2.48 to kld2 2.51 and its working fine.
[MTCB Android Head Units Q&A] kevant69:
Got it working started messing around in the settings.

Anyhow thanks for your input
[MTCB Android Head Units Q&A] valerio.tosti:
I have the exactly same problem with my rk3066. I have a powered usb. But still same prob. I need to remove the dongle and put it back
[MTCB Android Head Units Q&A] i.draskovic:
I think you have flash device with wrong MCU.
[MTCB Android Head Units Q&A] TiBiSMART:
I see. Thank your reply.
[MTCB Android Head Units Q&A] akrasky:
no boot after firmware update (no mcu, only firmware)

I just updated my unit with only firmware (http://huifei.fs-fileserver.de/content/firmware/KK 4.4.4 Dualcore/KGL 4.4.4/) but now it stuck on start: Is stuck on "Navigation system" write and don't boot also waiting for 2 hours nothing change.

I didn't touch the MCU, only the firmware and I used KGL for KGL. I not mixed anithing.

How to recover?

Thank you!
[MTCB Android Head Units Q&A] doctorman:
could be you have a bad download

redownloadit and udate from the recovery
[MTCB Android Head Units Q&A] akrasky:
No I checked, It's ok. I tried to flash again with same result.

It stuck on start and won't boot.
[MTCB Android Head Units Q&A] jperezch:
Hi everybody!

I would like to make my own pre-rooted firmware image based on original JY RK3066 1024x600 4.4.4 from 20150609.

Yes, I know you, there are plenty of versions already pre-rooted, but I like JY firmware and nobody rooted last version so far.

Anyway, although I'm a noob in all this stuff of Linux/Android, I'm trying to figure out the steps needed to get a rooted rom image.

As far as I know, the steps would be something like this:

1. In Windows, unpack original update.img with imgRePackerRK

2. Extract system.img file

3. In Linux, mount this file

4. Open mounted folder and copy su binaries into xbin folder. I extracted su file from an older rooted JY image available at the repository

5. Set permissions to 6755

6. Copy Superuser.apk into app folder

7. Back in Windows, repack update.img with imgRePackerRK

So far it seems 'easy', but I'm sure I must be missing something.

May some of the gurus enlighten me?

Thank you in advance
[MTCB Android Head Units Q&A] koimr:
How did you check?

I have a device that always has an error flashing when I've downloaded a zip directly from that device. No errors during the download(s) either. I have to download from my PC and then copy to the device and then it flashes just fine.

So try that and see. :)
[MTCB Android Head Units Q&A] agentdr8:
Try a different sdcard. I recently had this issue when flashing and it turned out to be a bad card.
[MTCB Android Head Units Q&A] NYCAR:
I was unable to make it work.

1) I downloaded the updated version.

2) I installed the updated version.

3) I turned off and turned on the head unit.

4) I had the head unit forget the OBD.

5) I did a Bluetooth search an paired the OBD.

5a) I was never asked for the OBD code (never had to type anything in).

6) I downloaded Torque

6a) Torque still claims that bluetooth is not enabled.

THEN, I tried to install the older version. I also failed at this.

I was unable to find a way to delete v. 1.3j (or whichever one it is).

The best I could do was disable the APP.

But, that still did not allow me to install an earlier version.

Can you please tell me what I am doing incorrectly?
[MTCB Android Head Units Q&A] agentdr8:
If it's paired, then it should work; the module allows your OBD adapter to pair even if its name does not contain OBD. Try changing the setting within Torque to enable BT. Then exit Torque, and then relaunch it.
[MTCB Android Head Units Q&A] NYCAR:
I'll try again, but these are the same symptoms as before this new update.

Torque works fine on my cell phone (where I have to type in the four digit code to pair phone with OBD). But even though my head unit claims to pair with the ODB, I am NOT asked for the code at the time of pairing and Torque refuses to acknowledge that there is an OBD (even though the OBD symbol is shown in the taskbar).

If I understand my research correctly, this is a common issue in the recent past. And I'm pretty sure I've tried every setting in Torque. But, as I said, I'll try again.
[MTCB Android Head Units Q&A] agentdr8:
These headunits do not prompt for pairing codes for any BT devices, so don't let that be an indicator things aren't working right. If you set Torque to auto-enable BT if it thinks it isn't on, then it should work. This is similar behavior that I've experienced with Torque. It's due to the non-standard BT implementation on these headunits. But since you're seeing the OBD symbol on the statusbar, then you're more than half-way there to success.
[MTCB Android Head Units Q&A] NYCAR:
Well, that does make me feel better. I'll give it another shot.

---------- Post added at 09:13 PM ---------- Previous post was at 08:44 PM ----------

Still no luck. I cannot find any setting to turn Bluetooth on via Torque.

Two things;

I am doing all these tests with Torque Lite (free version)

Toolbar shows Torque is running (OBD on left side is white)

Toolbar shows OBD is paired (OBD on right side is blue)

Pulling down on the Toolbar shows Bluetooth as gray instead of white, but things are still paired and I cannot find any setting anywhere to actually turn bluetooth on or off.

Any other suggestions?
[MTCB Android Head Units Q&A] DjCalvin:
Mazda has a separate OEM BT module that the left side (phone controls only) steering wheel controls run to. It is separate from the head unit. It (oem bt module behind the passengers kick panel)sends signals to the head unit when in use with caller identity, low volume signal etc.

Think of it this way: when you press the phone pickup button, It sends the signal to the OEM BT module, which is disabled because the OEM head unit isn't recognized. That's where the commands stops. The action never gets to the head unit. This has been an ongoing issue on the Mazda forums with aftermarket head units for years. Not just these ones.
[MTCB Android Head Units Q&A] agentdr8:
Shouldn't matter if you're using Lite or Pro. I'm using whatever version the headunit comes with.
[MTCB Android Head Units Q&A] -=Gerner=-:
My HU does prompt for pairing code with my phone (android 4.2.2) and it works well, all features. I think, trying to use torque with this HU, it is depending what type of OBD Bluetooth module are You use. With my OBDII BT v2.1 modules does't work, the HU does not request a pairing code. Now, I do useing OBDII WiFi module, and thats it works well.

Other users wrote, that they use OBDII v1.5 Blutetooth module, and it does works well.
[MTCB Android Head Units Q&A] Stickypinkyfinger:
My system was the JY MCU and at first I didn't flash the MCU just done the ROM update. Seems like the same thing has happened to someone else as well. I'm still stuck on navigation android 4.4 boot screen.
[MTCB Android Head Units Q&A] doctorman:
try a different ROM or an older version ROM
[MTCB Android Head Units Q&A] Stickypinkyfinger:
Seems like you have the same problem as me. I just flashed an updated ROM and now my system won't boot. Stuck on the same screen

---------- Post added at 06:25 AM ---------- Previous post was at 06:17 AM ----------

I have tried 8 different ROMs now with no luck. Tried updating the MCU and also downgrading. If you look at the pictures I posted when I try to flash a ROM it gets stuck quarter way then reboots and displays no command. Its like it keeps getting stuck on the flash.

http://xdaforums.com/showthread.php?p=61341417
[MTCB Android Head Units Q&A] Stickypinkyfinger:
This is the same setup as what I had. The MCU says JY
[MTCB Android Head Units Q&A] agentdr8:
Usually after the first quarter, the device should reboot back into recovery and then continue on. I would suggest either trying to format your sdcard, or try another one. The recovery I was on is a bit older, and didn't show No Command, but just an exclamation when the flash failed. It did this repeatedly until I switched to a different sdcard.
[MTCB Android Head Units Q&A] Stickypinkyfinger:
Thanks for your reply. I will try another SD card tonight but the strange thing is it let me flash the MCU after all this happened from that same memory card just not any ROM.
[MTCB Android Head Units Q&A] obioan:
This is a good answer. Thanks.

Wouldn't it be better if the initiator of this thread could post some kind of pool where owners could rate this product based on their experience of using the product? This way questions like mine and other hundreds of users could be avoided. At least.
[MTCB Android Head Units Q&A] _j_h_:
Hello, great app! it working great with PowerAmp. Are you planning to add suport for Deezer ? It's music streaming app like Spotify. Also I've some issue - when I turn on option to control Spotify - controling for PowerAmp don't work anymore.
[MTCB Android Head Units Q&A] devilsoft:
I'm glad that it helped you :) Well, I have no idea how that last active app is remembered and launched on startup. Maybe [MENTION=434511]agentdr8[/MENTION] or [MENTION=6041319]dsa8310[/MENTION] could find how and fix.
[MTCB Android Head Units Q&A] OnkelDeffe:
Deactivating amp circuit

[MENTION=3008500]ramdani1978[/MENTION]: thanks for your hint, but which ground pin should I use? I found some pictures using google and pin 22 seems to be the mute pin. But there are several ground pins:

pin2: P-GND2

pin8: P-GND1

pin13: S-GND

pin16: AC-GND (this one?)

pin18: P-GND3

pin24: P-GND4

Uhh, and only to be sure: after deactivating the amp chip I still can use the audio cinch outputs?!

Thx for your help,

Detlev
[MTCB Android Head Units Q&A] elcolombia17:
Dear, can you do the same in red?

Thanks in advance

---------- Post added at 10:48 AM ---------- Previous post was at 10:29 AM ----------

I think ground is the same everywhere....
[MTCB Android Head Units Q&A] dodorado:
like this :)
[MTCB Android Head Units Q&A] ktibor69:
Request for JY RK3066 prerooted firmware, please!

Hi Dsa!

I'm joining for this request I need simple RK3066 JY 800x480 prerooted firmware:

"Hi Dsa

I'm sorry to bother you with such a repetitive question, but do you have any plans to, eventually, generate a pre-root image based on original RK3066 JY 1024x600 firmware from 150609?

I'm not asking for a hybrid version, that is clear you are not going to do anymore, just injecting root into original image available at Carjoying web site.

Thanx "
[MTCB Android Head Units Q&A] devilsoft:
New Startup Builder App version 1.3.

New services added on startup: Spotify and DailyRoads Voyager.

Link to post: http://xdaforums.com/showpost.php?p=61256348&postcount=13987
[MTCB Android Head Units Q&A] Malaysk:
Hello. You can add to your program three services?

and Torque Pro:

and StrelkaGPS

Thanks in advance !!
[MTCB Android Head Units Q&A] Enc0der:
Thanks!

The problem is that the device automatically loads the last active app, so if for example I shut it down while having the Radio on, then on the next boot I will have both Radio AND Poweramp (if it is set to autostart) together...

Is there a way to avoid that? (disable the "autostart last app" feature?)
[MTCB Android Head Units Q&A] devilsoft:
Hi [MENTION=3590033]Malaysk[/MENTION]!

I released a new version of the app (v1.4) which contains those services on startup too, now :)

---------- Post added at 11:22 AM ---------- Previous post was at 11:19 AM ----------

I don't know how to fix this and unfortunetly, I have no time to research. Maybe the the guys from here will help with this. I also have this issue, but i quick fix it, by pressing the "home" button.
[MENTION=434511]agentdr8[/MENTION] and [MENTION=6041319]dsa8310[/MENTION], can you guys help us with this issue? Thanks!
[MTCB Android Head Units Q&A] Malaysk:
Oh, thank you very much !!!

You can then add more services

JetAudioPlus
[MTCB Android Head Units Q&A] devilsoft:
Yes, I can add as many services you want :) You have more services to add ? Or is ok for now ?
[MTCB Android Head Units Q&A] Malaysk:
Yes, this is the last service, verified to work :D
[MTCB Android Head Units Q&A] veget83:
Hi guys i have a very big problem

This morning the stausbar, the home button and the notificati on bar dont work!!

Don't feel the Touch........ Why only the notificati on bar don't work....???

Help please

Thanks!!
[MTCB Android Head Units Q&A] javlada:
Is there any possibility to detect, if radio starts and in that case not start PowerAmp? I use this script to auto start PowerAmp on my device. It woks great unless I used radio as last music source. Then after next boot both radio and PowerAmp start playing simultaneously. Is there any solution for it?
[MTCB Android Head Units Q&A] devilsoft:
And there is a new version (v1.5) which has JetAudio Plus service, running on startup too :)

http://xdaforums.com/showpost.php?p=61256348&postcount=13987
[MTCB Android Head Units Q&A] TiBiSMART:
Thanks for your reply.

Can you give me a link to this Mazda forum, please?

T.
[MTCB Android Head Units Q&A] Malaysk:
There was the launch of the new service :D:D:D

Tasker:

I have probably been tormented :o
[MTCB Android Head Units Q&A] typos1:
I see, well enjoy your holiday ! :)

Ah, I see.

Its not so strange, the MCU and Android are entirely separate.

Feel free to message him and suggest it.