yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] Dareksa:
Exactly, you can also add information which model do you use.

It can help us to solve this problem and report it to Keylo or another person from HuiFei.
[MTCB Android Head Units Q&A] parazit26:
i haven't got one yet. but i am thinking about getting one.

is anybody using an arduino for SWC?

i am curious if this will work on a huifei unit?

http://xdaforums.com/showthread.php?t=2635159

used this one for my Nexus 7 in dash and it worked fine.
[MTCB Android Head Units Q&A] typos1:
Just found this listing on ebay:

http://www.ebay.co.uk/itm/POST-BY-E...S_In_Car_Audio_Players_PP&hash=item5d4c3abc93

Its clearly a HuiFei unit same as all the others, but it specifically says "dual channel" CAN Bus and that info can be exchanged between the car and the unit, whereas Keylo has said its only 1 way CAN Bus.
[MTCB Android Head Units Q&A] Dareksa:
Chinese description may have nothing to do with reality.
[MTCB Android Head Units Q&A] 1-2-Hak:
Cant see why this wouldnt work - but you couldnt control Native players like the radio.

The built in SWC is very simple. Its just a resistance measurement.

If you want to build you own switches you can just add a switch with a resistor at different values and it will be detected byt the SWC on the unit.

I am working on my unit always on and acc making the unit go in and out of standby at the moment.

What I am doing is powering both the Batt and ACC (red and orange) directly from the battery.

When the acc on the car is turned it will momentary connect the Key1 + and ground to take unit out of standby. When you switch acc off it momentary connects these again to put unit in standby. (you just assign the power option in the steering wheel control and connect these wires to set - no resistor or switch needed)

Startup time is now 1s - cant get faster than that :)

Just working out the circuit to do the momentary connection on power on and off. Will post once I worked it out. You can then add a timer to shutdown the unit fully if you want to make sure it only goes into standby for 10 min - 1hr - 1day whatever.
[MTCB Android Head Units Q&A] avantissimo:
Also to me internal microphone does not be good, people hear voice very low, then do you have to shout or get close to the microphone. Then i have taken external microphone supplied, and have cut wires to connect to original microphone audi that i had already. But not work. Bad thing that when fitted, even this no longer function. Now I do not understand if be burned radio connector or microphones.
[MTCB Android Head Units Q&A] pakidermo5000:
Radio Moded v1.0

Ok, here we go.

I moded the radio graphics, just slightly as it was my first mod. It was more a learning exercise than anything else. I have attached the moded app so that you can have it if you like it.

I created 2 apps,

- MTCRadio_installNormalWay.apk

- MTCRadio_OEM.apk

The first one can be installed normally. This is for you to check whether you like it and works in your head unit. If you like it, then you can replace the apk in /system/app/MTCRadio.apk with the second one.

Hope you like it.
[MTCB Android Head Units Q&A] 1-2-Hak:
Well done. This is a great start. You must be very happy :)
[MTCB Android Head Units Q&A] pakidermo5000:
Yes I am.... a bit... well, quite :)

Thank you, and thank you for your help too.

I will try to finalize the new skin during the weekend.
[MTCB Android Head Units Q&A] says888says:
Hi all ,

Had a question what is serial CanBus and Dual CanBus ? Hope some can help ?

Did any one know about this unit ? Free shipping! Android 4.2 Car DVD for VW GOLF 5 Golf 6 POLO PASSAT CC JETTA TIGUAN TOURAN EOS SHARAN SCIROCCO CADDY with GPS from Shenzhen Sion Electronics Co., Ltd
[MTCB Android Head Units Q&A] parazit26:
why do you think it wouldn't work with the native apps? i have already tried to hook up a can bus, but i won't get every button to work. i have a Fiat which has this blue & me box(dont know if you ever heard about it) and thats the reason why the can bus boxes don't recognize every button.
[MTCB Android Head Units Q&A] Viper87227:
I've got a unit on order, and I've got a a (hopefully) simple question to ask. I want to pick up a reverse camera to add to the mix when it arrives. I'm not great with cars, I know enough to install a stereo and speakers and that's about it. I'm certainly capable of putting in a backup cam myself so long as someone can clarify the correct way to wire it. I don't want to be guessing.

As I understand it, the best way would be to hook the camera's power wire into my taillights, so that its only powered on when the reverse lights are also on. I can do the wiring for this no problem, and getting the video cable up to my dash is also easy stuff. What I'm not so sure of, is how does the head unit know I'm in reverse? I got a Hyundai specific model. Will the factory wiring include a reverse signal? If not, can I just do it like the camera's power and run a signal wire from my taillight to the stereo, thereby activating the reverse cams input when my reverse lights come on?
[MTCB Android Head Units Q&A] sciallo:
Yes, there is a wire in the back of your unit that when connected to 12v. will switch the video output to the rear cam. You can connect that wire to your tail light signal either at the fuse box (if that's easy for you to find/trace) or just run a signal wire with your coax from the camera and using the same signal you're using to power tha camera.

---------- Post added at 12:22 PM ---------- Previous post was at 12:16 PM ----------

The reason is that the arduino mod you linked to communicates with android, the built in one communicates to the MCU, which in turn communicates to android. Native apps are just "remote controls" to the MCU...

MCU Explained Wiki page explains what I'm saying a bit more in depth...

I don't really understand what the advantage of using that arduino solution would be. That was made to add resistive SWC support to a tablet. Our units all come with that feature built in...
[MTCB Android Head Units Q&A] kwalsh24:
So, this is a total N00B question, I see you all modifying skins and such based around the radio app, is there a how to guide as to how to do such, or are you all doing a trial and error thing?
[MTCB Android Head Units Q&A] pakidermo5000:
Well, my way is usually google--> trial --> error --> google --> and so on.

To tell the truth, it is not rocket science. 3 days ago, I had no idea how to do it.

Basically:

- you need apktool to decompile the apks and see the internal files that you have to modify

-- in the decompiled app, there´s a folder with the images used to build the skin (this is what you can modify). Also, there is the xml file that tells the apk where to put the images and text whithin the skin

- to modify everything you should use Android studio, as it allows you to modify and see the result at the same time, otherwise you have to compile the apk at every step.

- then, once modified, you use apktool to recompile the app.

- finally you have to sign the apk. You can do that with Auto-Sign from Dave Da illest 1.

And you are good to go.

On top of all that. Depending how big modifications you wanna do, you need Photoshop/Illustrator or any software of the kind. Time, loads of time, and patience, more than time.

Oh, I forgot. Of course, Google is your friend...
[MTCB Android Head Units Q&A] bmccrary:
I just used a free app called "Startup Manager" in the Play store and put DailyRoads in there. It doesn't pop up or anything, but starts recording when the unit is turned on. It's very easy to use!
[MTCB Android Head Units Q&A] Montaxx:
Any ways to stop the radio to start at boot the last open apps ?

And is there a way to move the action bar to the bottom?
[MTCB Android Head Units Q&A] devilsoft:
Glad to help.

The MTC sources are not available by default, they were obtained by decompiling apk's, and you can find those sources here:

http://huifei.fs-fileserver.de/content/misc/decompiled_mtc/
[MTCB Android Head Units Q&A] pakidermo5000:
f you start it from install-recovery.sh (in your case install-recovery-2.sh) it starts at boot just like all other services started from install-recovery.

If I am not wrong it does not change brightness as such. It changes backlight, and adds a filter. You can choose the color of the filter, the transparency of the filter and the intensity.

The app gradually dimms in and out along the day making a smooth transition. I think In the paid version you can even define the dimming curve.
[MTCB Android Head Units Q&A] CARRisma:
It seems some headunits have microphone issues which can be resolved by disconnecting a capacitor. Here's my experience which might make people wonder…

I recently replaced my KD with a JY running MCU V2.16 with Android 4.4.4. The supplied microphone worked perfectly with the KD. That same microphone didn't work with the new JY, however the new microphone supplied with the JY does work. Both look different but use the same mini jack connection at the rear.

I know there's always a possibility that the original microphone may have died, but that would be highly coincidental. If the original microphone hasn't suddenly died, maybe there are microphone compatibility issues here? Apologies if this has already been covered here.
[MTCB Android Head Units Q&A] bmccrary:
Dim screen?

I just got a HuiFei unit a few days ago and put a new ROM on it, which I doubt has anything to do with this, but I've noticed my screen is quite dim even at 100% brightness. I never really was out in any sunshine before reflashing the unit. I haven't seen anyone mention this so just wondered if this was common. It's hard to read on a bright day even with no direct sunlight hitting it.
[MTCB Android Head Units Q&A] Navall2:
RDS text messages - character set wrong!

Hi,

I have a Huifei KGL 4 with mcu 2.09 and Android KitKat 4.4.4.

Everything works to my satisfaction, except the Radio's RDS texts. The character set is wrong. Android is set for Danish and works fine, but the Radio App RDS show "funny" characters in place of my national æ,Æ - ø,Ø - å,Å.

Does anyone know if the RDS character set can be changed and how?
[MTCB Android Head Units Q&A] typos1:
I would guess that its linked to the language settings in Android and that its down to bad translation, do you get it anywhere else on the device ?
[MTCB Android Head Units Q&A] miaoudak:
Hello I have the same issue. Did you find a solution?

Thanks
[MTCB Android Head Units Q&A] PereVerti:
Hi,

You can try to flash your unit with the last firmware : 2.09 mtcb-kgl4

++
[MTCB Android Head Units Q&A] Malaysk:
A complete description of the firmware here http://xdaforums.com/showpost.php?p=58249825&postcount=7614

KLD android 4.4.4 800X480 part of 13.01.2015

Posted in Settings - Modem settings and the APN

Added change the font size settings

Change the whole style and design popups

Added button in the screensaver shutter notifications

By default, the density of the screen is set to 180 dpi (hence it is logical that the added change the font size for your comfort)

Basic system programs elaborated under this density screen

many other improvements and additions that are not visible to the naked eye

800X480 with NEXT Launcher https://yadi.sk/d/yZxtjk83eWPwu

The firmware has not been tested, there may be problems
[MTCB Android Head Units Q&A] marco.lav:
UH discovery and webcam use

hello everyone,

I have two questions

I did some research for this UH

I want to know if you can replace Android and possibly the MCU.

tell me if you know there is a thread for this UH?

[IMG="Discover UH"]https://lh5.googleusercontent.com/-6krdmJ1UPDc/VNTbLI2iVCI/AAAAAAAALb8/OFFUI0ADLeo/s510-no/image1.JPG[/IMG]

[IMG="Discover UH"]https://lh3.googleusercontent.com/-lhE6xpgHGSQ/VNTbWJbaRuI/AAAAAAAALcE/tpjSo3FujSs/s510-no/image2.JPG[/IMG]

Second question:

I can use the webcam device for two applications?

I would like to use and IonRoad dailyRoads

you can create a kind serivizio Server or tell me you know a solution?

Thank you for your attention
[MTCB Android Head Units Q&A] ErAzOr2k:
does anyone successfully running KGL device with usb hub?

In my example it's an 3 Port USB Hub with integrated sdcard reader (active).

Sometimes my devices like usb stick or umts stick are recognized fine.

But mostly they aren't working. If this happens, What I can see via "dmesg | grep usb" is, that the devices are recognized, but not mounted. for example my umts stick should by monted to tty(x). But it's not the case.

I also tried different USB hubs und different usb Ports on the device, but with the same result :(

I'm running coudu's 4.4.4 Image.
[MTCB Android Head Units Q&A] typos1:
Thats not a HuiFei type unit, you do realise dont you ?

Maybe an AN21-U variant, but it looks like its got a tablet UI and I think the AN21-U has a phone type UI, so maybe WD8801 variant ?

Got any info on specs - processor, RAM etc ?

I thought you had a HuiFei type unit ? Maybe you want to replace it cos of radio problems ?

---------- Post added at 04:11 PM ---------- Previous post was at 04:08 PM ----------

I think its a USB power issue, theres been reports of hard drives and 3G dongles disconnecting and reconnecting at random and my USB drive has an issue where the music will cut out for a few seconds, although it is random - sometimes it will be fine.

I d try a powered USB hub which may sort it.
[MTCB Android Head Units Q&A] marco.lav:
I realize that is not a heufei,

I do not know what it is, and wondering just help, maybe I was unclear.

I apologize if I expressed myself well.

other data:

Allwinner A10 processor, 1.2GHz frequency, MALI400 GPU,

1 GB e RAM 1 GB

http://www.navplus.it/prodotti/autoradio-specifiche/lancia/item/20-lancia-delta.html

thanks a lot
[MTCB Android Head Units Q&A] typos1:
Not heard of any head units with Allwinner processors. Its clearly an old device though - only 4.1.1 and only single core, whereas there are at least 2 quadcore head units available now.

If youre looking for another type there is the Ownice RK3188 based unit, quadcore, 2 Gb of RAM, cant say how RDS performs in Italy though, check out the thread, I think there is a user from Italy on there.

Theres also the Newsmy NU3001, also RK3188 with 2Gb of RAM, but RDS is not working at all yet, the radio IC is capable but its not been implemented . . . yet.

Neither are available for Lancias though, but the Newsmy does have some funky looking 7" and 8" universal units.
[MTCB Android Head Units Q&A] ErAzOr2k:
what I use is a powerded usb hub :/
[MTCB Android Head Units Q&A] Navall2:
No, as I say in the post, Android is set to Danish, and works on all other apps, but the Radio app (RDS) will not display danish characters correct.

---------- Post added at 05:41 PM ---------- Previous post was at 05:35 PM ----------

No translation is not the problem. RDS texts are generated from the radio station telling what the program is, what is playing now, who the host is etc. this text is Danish (when you are in Denmark:D) with Danish characters. When they arrive at the HU they are shown correct except for those 6 characters.
[MTCB Android Head Units Q&A] marco.lav:
I thank you very very very much,

Some friends of mine who have a Lancia like mine, bought this device and we just wanted to see if we could put another Android and another MCU on this device.

* at this point I give them the bad news, the device is an old device which not much is known.

if you want, I can rimouovere the post, since they are not related to the topic.
[MTCB Android Head Units Q&A] terzo33:
hello friends, the producer gave me this file mcu for my Huifei KGL for Opel/Vauxhall Astra J...

http://fs.163.com/fs/display/?p=X-N...v5CVzc7ENL52HRowOApQ9gzQ&title=new updated os
[MTCB Android Head Units Q&A] agentdr8:
Keep in mind that these apps were decompiled from one of the KGL 4.2.2 roms way back when, and that a lot has changed code-wise in many of them for 4.4+ roms.

I'll probably get around to redoing the whole lot of them from one of the newer 4.4.4 roms when I have some free time.
[MTCB Android Head Units Q&A] pmbp:
Finally upgrade on KGL!!! MTCB-KGL5-V2.22 - i hope they realeased for KGL whithout numbers :good::good:
[MTCB Android Head Units Q&A] obekende:
YES!! new mcu kgl! waiting for bmw e46 (ES9746A) version :)

regards..
[MTCB Android Head Units Q&A] bhitman:
Is it usable for BMW E46 too? Because terzo33 wrote, it is for Opel...
[MTCB Android Head Units Q&A] obekende:
I said: " waiting for bmw e46 (ES9746A) version" I do not know, waiting for someone to tell me....

regards..
[MTCB Android Head Units Q&A] bhitman:
I'm asking because the name of the last proper BMW E46-version is MTCB-KGL5-V2.09 and the new one is named MTCB-KGL5-V2.22...
[MTCB Android Head Units Q&A] obekende:
yes i know, ok, I'll test it now! I already come.......................................
[MTCB Android Head Units Q&A] bhitman:
Finger cross!!!

Please give us info, if it works...
[MTCB Android Head Units Q&A] typos1:
No need to remove it, I would guess its an AN21-U or a WD8801, there are threads for both on XDA.

---------- Post added at 07:48 PM ---------- Previous post was at 07:46 PM ----------

Maybe down to bad programming in the MTCRadio app then.
[MTCB Android Head Units Q&A] pmbp:
Waiting for feedback ☺ mine is bmw too but model is ES9790, any dangerous to test? Can i brick unit? Now im using kgl whithout numbers..working good so far
[MTCB Android Head Units Q&A] typos1:
No, your ll only brick it if you put an MCU from a different manufacturer on it.
[MTCB Android Head Units Q&A] obekende:
Work like a charm! :) i tested, wireless, radio, tdt, music, everything, the radio station is much but much better! now the light is off when the key is off position YESSS!

Tips: When updating the mcu go to factory settings and select the right configurations like, rds, rgb, radio station (europe) car and dvd logo, etc....

Edit: tested on ES9746A (bmw e46)

B, regards
[MTCB Android Head Units Q&A] pmbp:
Ok...i think i will give try...noob question..can i make update only of mcu or i have to put image + mcu?
[MTCB Android Head Units Q&A] Us-Marshal:
You can update the MCU independent of the Android image. Just find the new MCU img file and put it on SD card by itself. However, as has been mentioned many times, be sure you have the right MCU for your unit or you risk bricking it.
[MTCB Android Head Units Q&A] obekende:
Yes you can, put only mcu in the sd card and flash it.

regards
[MTCB Android Head Units Q&A] pmbp:
I cant download.. i think it because they limeted 10 downloads..please upload for: https://drive.google.com/folderview?id=0BxmzvLRI7-eNeVA2SWkwM1pLZ28&usp=sharing#listv

thanks
[MTCB Android Head Units Q&A] typos1:
Just try it, theres loads of enhancements.

Hes been writing ROMs for this unit for quite a while, so theres no reason to lack confidence in them and no-one else changes as much as Malaysk does in their ROMs, he makes proper custom ones, he changes much more than coudu for instance (thats no criticism of you coudu, I think your ROMS are just mainly to add root and tidy the standard ROM up a bit).

---------- Post added at 09:28 PM ---------- Previous post was at 09:22 PM ----------

Some of the extras youve put in dont seem to work, I can give you a list if you want bug reports.

What are "myradio" and "mymusic" for ? Nothing happens when I press them.

Any chance you could add the ability of the user to change the colour scheme ? - turquoise doesnt really go in my car.

I like your ROMs, this is not supposed to be a negative post, by the way.
[MTCB Android Head Units Q&A] agentdr8:
These are activities of XposedMTC, to properly switch audio sources for people that don't have SWCs.
[MTCB Android Head Units Q&A] typos1:
Right, have you tried his ROM ? - Hes enabled daydream.
[MTCB Android Head Units Q&A] agentdr8:
I did see that mentioned, but I haven't tried it yet. Will switch to it the next time I upgrade, just for ease of the Dream plugin development.
[MTCB Android Head Units Q&A] obekende:
Rectify: something strange has occurred or maybe seen wrong but the lights of radio continue on, bufssss shi** :eek: someone got it off?
[MTCB Android Head Units Q&A] R4D3N:
MCU Update for KGL

Here I post MCU KGL5 V2.22, it works for BMW.

I hope that somebody will upload it to the repository ;)
[MTCB Android Head Units Q&A] uncleg:
I observe the following results on MCU's firmwares where lights is always on.

When HU in normal mode (screen is displaying something) - the button lights is always on, independently from car light switch position.

When HU in sleep mode (gone to sleep by power button) - the button lights working well with car light switch. They are on and off.
[MTCB Android Head Units Q&A] ErAzOr2k:
Ok I think the problem is, that it's a USB 3.0 Hub. My other USB 2.0 Hubs are working without problems.

The strange thing is, that the 3.0 Hub also works in 1 of 30 attemps... But like already said, mostly not.

Does anyone know if there i something to modify, to get USB 3.0 Hubs working?
[MTCB Android Head Units Q&A] manicuspanicus:
does illumination works as it should or it is always on?

---------- Post added at 05:10 AM ---------- Previous post was at 05:08 AM ----------

In your rom you have something like autostarts in the settings menu. How can i add or remove programs in there? Thanks
[MTCB Android Head Units Q&A] Malaysk:
The machine is now repaired, will soon make

Yes there in the settings menu startup, also added a program to uninstall system applications

This is difficult to do, but I think
[MTCB Android Head Units Q&A] manicuspanicus:
How do you add new programs in there in case they don't show? I'm using your kgl rom.

Στάλθηκε από το GT-I9505 μου χρησιμοποιώντας Tapatalk
[MTCB Android Head Units Q&A] ESTIMULO:
I got a BMW E90 and working with KGL mcu v2.09 without numbers that works better than mcu5 or any other.

Waiting for KGL V2.22 without numbers too

thanks
[MTCB Android Head Units Q&A] Saem persun:
Hello, guys!

I've bought a KLD device for Ford Focus mk3.

It does not have a reset button so I don't really know how can I get into the recovery mode. Does anybody know the solution?

I tried to run 'reboot recovery' in the terminal, but nothing happens...
[MTCB Android Head Units Q&A] gy_ro:
For the non-latin users :

You can not argue about colors and taste :p
[MTCB Android Head Units Q&A] miaoudak:
thanks

Thank you, is there a guide to do the update?
[MTCB Android Head Units Q&A] terzo33:
Yeah ;)
[MTCB Android Head Units Q&A] urbtar:
io

mcu 2.02 is ok for hgl-7000
[MTCB Android Head Units Q&A] typos1:
On the first page.
[MTCB Android Head Units Q&A] Ninonuk:
Sorry, that doesn´t work for me. I have an Erisin ES9781 for Opel. If i try the update, ive got an error mcu.img update fail.
[MTCB Android Head Units Q&A] razormel:
Ninonuk, maybe i will try to do the update tomorrow on my ES9871DE :)

I will keep you informed. Did the putting of install-recovery.sh on your HU went well?

Kreatives Tippseln mit tapatalk
[MTCB Android Head Units Q&A] bryanlim05:
Using Malaysk's lastest rom. Minor bug. Really minor. I noticed that the wifi toggle doesn't animate correctly. ie it looks off even when you press it to turn it on. I believe this may be happening with some other toggles but I've only played around with it for a couple minutes today
[MTCB Android Head Units Q&A] typos1:
You dont have an Erisin unit.

Erisin are re-sellers not manufacturers, check the first page and find your type from the settings/about device screen then download the correct MCU.
[MTCB Android Head Units Q&A] razormel:
As far as i'm informed, Ninonuk knows that his HU is originally a KGL (with MCU KGL5) - him and me talked about that before :)

Kreatives Tippseln mit tapatalk