yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] sprfly:
Yeah already ran into that. I had to copy the files to the internal and reboot. I had hoped that something was just messed up with the firmware install and updating would fix the slot not working but it didn't help unfortunately.
[MTCB Android Head Units Q&A] dark alex:
Well you could try to dismantle the circuit board on which the sd slot is from anything else and use a hot air pistol to "reflow" the solder paste.

Just don't heat it up too much. you do not want it to become fully floating as you will then damage something for sure. Just try this to see if it helps at all. If it does you could go the wy of resoldering or trial and error reflows
[MTCB Android Head Units Q&A] CerberusBR:
Hello typos1

I never contact KGL before, could you tell me how can I contact them?
[MTCB Android Head Units Q&A] typos1:
I saw that post the other day and I thought that it did not appear that the poster had installed it themselves the way they were talking.

I know about your GALA app and thought you wrote it yourself.

After reading that post I then thought that I had got it wrong and you had modified the original GALA app.

Its clear from you post above that it IS your app, you did not modify it.

If the error states there is an error with the GALA app, then it MUST be installed, surely ?

So I wonder if someone from one of the companies has read this thread and started installing your GALA app on the units at the factory ? !

Is it open source ?

Or have I got the wrong end of the stick ?

---------- Post added at 02:21 PM ---------- Previous post was at 02:16 PM ----------

For GPS, could you not simply install the GPS onto your unit ? Wouldnt that be the best way anyway ? Then you have one SD card slot for media and you update by putting the files on the internal sd card, GPS slot problem solved and you have a unit very cheap ?

Than all your problems sorted, as long as they DO actually send you the buttons.
[MTCB Android Head Units Q&A] dark alex:
No it is definitely written on my own.

You can see it when you have a look at the package. it starts with de.firesplash which is my domain.

I don't believe they are installing it at factory though I would not mind if they would install it to be serious but I would like to know it.

In fact there is no original GALA App.

And at the moment it's closed source but it's not really a big part to write that...

It's available to download for free from my file mirror or you can buy it from google play as a donation if you want.
[MTCB Android Head Units Q&A] typos1:
Look at the beginning of the thread or Google KGL HuiFei Android etc.

---------- Post added at 02:29 PM ---------- Previous post was at 02:26 PM ----------

Yes, yes, I realise that it is your app, I always thought it was.

What I was saying is that after I read that post it appeared that the poster did not install it himself, so I thought I had got it wrong about it being your app and you had modified an existing app called GALA.

Your earlier post stated it WAS definitely your app, meaning that my assumption was wrong.

So as the poster did not install your app but got the error about the GALA app, I am wondering whether the Chinese companies have been installing it themselves ? - Keylo from KGL has posed a few times at the beginning of the thread, she may very well still be reading it, which is a good thing if she uses it to sort out problems, maybe not so much if they are copying your app without permission.
[MTCB Android Head Units Q&A] lamjanus:
I got an update from Erisin, it`s MTCB-KGL4V2.01

There is something wrong with this version because only 2.02 is on the FileMirror server?
[MTCB Android Head Units Q&A] Warlord711:
Maybe the 2-way CANBUS isnt clear defined.

I actualy can see open door on unit, but i also read that some people now have information from the unit shown in the car dashboard, like the RNS/RCD-series from VW does. On my old RCD I could read Track Info + Station Names in the cars dashboard. If you use a VW RNS, you also got directional arrows from navigation at your dashboard.

At the moment, i only see the word "NaviSystem" at the dashboard, so there is some kind of communication, but not working properly.
[MTCB Android Head Units Q&A] artaxcc:
I've been monitoring the thread for a while and finally ordered one. Yay! Now that it has arrived, the mounting holes don't align and i can't install the unit :(

Anyone else experienced this problem?

Should I demand a couple of new side panels that i put into place myself, or just drill a couple of extra holes ?
[MTCB Android Head Units Q&A] Warlord711:
Ok, already got that update. Can you tell me what car brand/model your Erisin is made for ?

Ah i forgot the other fileserver.

Not sure if its ok, but there is a GoogleDrive i found on a russian forum:

https://drive.google.com/folderview?id=0BxmzvLRI7-eNeVA2SWkwM1pLZ28&usp=sharing

---------- Post added at 03:56 PM ---------- Previous post was at 03:55 PM ----------

[/COLOR]

Wow ! What car brand/model ?

Maybe they just send you the wrong item.
[MTCB Android Head Units Q&A] dark alex:
You are mixing two posts!

One said it could be caused by my app.

Another one said he has the system ui problemen though GALA is not installed

this proves my app is not the initiator of that problem
[MTCB Android Head Units Q&A] MrZneeky:
Anyone got problems like the unit freezing during boot up (lots of times), and sometimes during usage?
[MTCB Android Head Units Q&A] typos1:
Its obviously not working fully and as VW/Audis are very popular I spose theyve developed for them and not started on 2 way for anything else.

---------- Post added at 03:32 PM ---------- Previous post was at 03:31 PM ----------

Oops, sorry, my bad !
[MTCB Android Head Units Q&A] Stank0:
IMHO your SD slot is just fine according to what I've read from your comments. But I might be wrong. Let me ask you this. Can you access it with any file manager? Can you see the files? If you can, your slot is OK and you just doing something wrong. If you can't access it with anything, then it's most likely broken.

Just trying to save you the hassle of shipping it back.
[MTCB Android Head Units Q&A] artaxcc:
toyota rav4 2005

Huifei

MTCB-KGL4-v2.01

Model number: S07

I think the side panels have wrong holes. The left and right side should align i think.

( i can't upload photo's - i haven't have posted enough)

One side is correct , the other not.
[MTCB Android Head Units Q&A] staneb:
I had a long chat with a few sellers on aliexpress and they said to me, that they don't include the mounting harness. MCU and firmware version they supply at the moment is 2.01 and that it should support BOSE which I have in my Mazda6, so I will not be using the built-in amp. But the thing is, supplied wiring harness is the same for BOSE and non-BOSE which means that the amp can be switched off. Can you check if that is possible or if you could send me the wiring diagram from your unit so that I can check if it uses other outputs for BOSE? Did you get canbus with the unit?

Hopefully you will get things sorted out.
[MTCB Android Head Units Q&A] zorantoma:
I have a 2010 passat 3c and double canbus works prety good. I can now see the radio stations on the cars display. The only issue i have is with SWC next track is previous and back is next.And the radio reception is now superb in 2.02 FW
[MTCB Android Head Units Q&A] ProfessorKnox:
[MENTION=456516]typos1[/MENTION]: Please don't mind but why do you think from msg #2628 that 2way CAN is working? RmXsTyLe just states that he can see wheter door(s) open [on the HU]. But that's still oneWay, i.e. from car to HU.
[MTCB Android Head Units Q&A] agentdr8:
The post right above yours is stating radio station names in the car's display. And looking at the code, there's definitely 2-way canbus implemented. Whether or not the decoders they provide work with the vehicle is another question.
[MTCB Android Head Units Q&A] typos1:
Hmm, I m sure I read somewhere that some one reported 2 way working with stuff on the instrument display and stuff on the headunit, I did a thread search yesterday for the post and came across that one, so thought thats where I saw it. However as youve pointed out the poster does not mention anything displayed on the car.

So I may have got it wrong about 2 way CAN Bus.

Edit - post #3091 suggests that "several people" have "reported 2 way CAN Bus working" and post #3114 reports it working on a Passat, so I guess I was not accurate in my post search yesterday and that post #2628 was not the first report of 2 way CAN Bus working, it was probably an earlier post than that that I first saw it mentioned. Seems it only works on VWs and even then sometimes not fully.

---------- Post added at 07:15 PM ---------- Previous post was at 07:06 PM ----------

I dont think its the decoding box, its the MCU or maybe Android, I say this because it was after update 1.99 or 2.02 that it was reported working.

I guess the decoder boxes "speak" the MCU language and the car's CAN Bus language and simply acts as an interpreter between the 2 whether it be one or two way.

I think its down to the MCU or Android as to whether its 1 or 2 way and thats why its started working on some cars after the 1.99/2.02 updates.
[MTCB Android Head Units Q&A] that_dood:
Sorry, I didn't clarify. I have the non-bose car. My amp is an alpine, and I did get the can-bus adapter with it and all works well
[MTCB Android Head Units Q&A] staneb:
Than maybe the cracking and bad sound quality is because the output from HU goes through built-in amp in to your alpine, which should not be.
[MTCB Android Head Units Q&A] Reptile-X:
I have a 2010 Golf with high end display and I can't manage to get display working, did yours start working after update to 2.02? What else did you do to get it work, like what versions did you use exactly.
[MTCB Android Head Units Q&A] zorantoma:
It started to work with 1.99 and up.i flashed the FW2.02 and MCU Kgl4 2.02 With the first boot nothing worked and i had to set everything in factory settings. Installed xposed framework and rebooted. After the reboot everything started to work as it should.
[MTCB Android Head Units Q&A] Reptile-X:
Thanks for your reply, I ordered a GSM dongle when I receive it I will open up the dash and install everything and reflash the firmware. I also ordered a TV tuner back when I ordered the unit so I will install that too.
[MTCB Android Head Units Q&A] george2350:
v1.93

Hi - I got the KGL7698 (This is the 7 inch screen with knobs for VW cars) recently from AliExpress and the MTCB version is v1.93. I would love to update to 2.02 (basically 1.99 or higher) to see if I am able to get two way CANBUS.

Can any one tell me how to extract the mcu.img and update.img from my existing unit for safe keeping?

Thanks,

George
[MTCB Android Head Units Q&A] oohsam:
Ahhh Damn.

I have the GS version and I dont know if I can mod this. Seems like only one guy has done root on it and it was in chinese. not willing to take that plunge as I cant read chinese.

anyone able to advise how i can root this and update firmware ?

Cheers

Here are some screenshots of my system. it seems as though I'm on a newer version than everyone else...maybe this model can't be updated?
[MTCB Android Head Units Q&A] SkyBehind:
Have the same one. Rooted according to the instructions on the first page. Other then that, haven't played around much with it.
[MTCB Android Head Units Q&A] sprfly:
I tried browsing the card using ES File Browser at /mnt/externalsd 1 i think is the path but it says it is not mounted. I put the card in the other slot and can see the files at /mnt/externalsd 2 just fine. This video shows the behavior I am experiencing; click the card in and nothing, click the card out and i get a notification that the card has been removed. It is strange to me.

[YOUTUBE]a8HN00nu5BA[/YOUTUBE]
[MTCB Android Head Units Q&A] that_dood:
manufacturer

So I'm pretty sure i've found the manufacturer of my KLD unit. This is the exact one I bought for my 09 mazda 6. I can't seem to figure out where to get updates as the ebayer I bought it from seems useless. Anyway, this is the one: http://www.cncanying.com/products_ny.asp?calssid=3&id=1848

Can anyone shed some info on where they are finding all these updates??
[MTCB Android Head Units Q&A] ptclabs:
That is the latest version. Until they update it, it has some problems. As stated root works fine, multi user works fine. if you have one you already know its problems so I wont go into them.

Just some thought I have.

Since the problem with most of these units is the MCU and its software, They should start working towards getting rid of the MCU for a pure android version. Make the radio and the bluetooth for calling an internal usb connection to the android. It sounds much simpler than trying to program two things that do not work well together to work together as well as they can. I am betting it would be cheaper to build also.

Make all the buttons F-keys so they are programmable. Everything can be controlled by apps. just seems to make more sense to me. The bluetooth app might be a little tricky, but the rest could be ran by drivers. Most are readily available or already on there.

This would seriously cure so many of the small annoying problems with these things. Radio playing over ILOVERADIO, but it doesnt over navigation, just because they added a setting for navigation only and not the rest. SD music playing over 3rd party apps, microphone not muting music when activated by things, the list goes on and on. Just so many little things all caused by the same problem. Make a duck a duck, not a duck and a goose.

If we could get someone to develop an add on app to fix some of these annoyances it would be great. I know they cannot fix them all unless they understand the relationship between the mcu and android. I do not know Java, so I am out. I do php and some others though. I think there is a simple function call of isMusicActive() that i have seen before. isMicrophoneMute() is another one, although ok google would mess this up as it leaves the mike on. I think the way google stuff usually works is it pushes pause. Since pause doesn't work with most of this unit thats an issue.

actually here is a whole page of auto stuff and functions

http://developer.android.com/reference/android/media/AudioManager.html
[MTCB Android Head Units Q&A] oohsam:
Sweet. Just saw the supplementary instructions to root on page 1. Thanks for that.

Not sure what root is really going to give me if there's no firmware to flash this with. Dont really want to risk trying firmware thats not proven either..
[MTCB Android Head Units Q&A] Warlord711:
I changed my system to 1.99 yesterday, hoping for a more stable and SWC compatible status.

I still got 3 tick VOL+/- but thats not the point. There is an app that seems to manipulate some CANBUS/CAR settings. Forgot the name but the icon is a white car on orange background. I think its called Systemsomethingblabla.

The app crashes if i set my unit to VW+SKODA CANBUS, also the app shows some strange string like [MENTION=938340]213[/MENTION]534534.

If i change CANBUS to GOLFVII, the app doesnt crash and shows me some information like coming home/leaving home light function and other stuff.

Anyone checked that app ? Does is work for you ?
[MTCB Android Head Units Q&A] Cannois:
On my side

On my side, only big problems.

I received it one month ago, and when I plug it, it is catastrophe, the only thing which appear is white lines.

But when I press hard the screen it works a few second or when I put a sd car with mp3 it starts but nothing normal on screen.

The seller tell me it is a voltage problem, but I don't really understand

I show a picture of my unit in the car (it is a french car 307)
[MTCB Android Head Units Q&A] Warlord711:
Looks like a broken panel for me. Just inform the seller and demand a new unit in exchange. If you bought from ebay/alibaba, use their tools to open a dispute.
[MTCB Android Head Units Q&A] lamjanus:
Yes, i saw the update on the Google Drivelocation. I have the ES9781A for Opel/Vauxhall
[MTCB Android Head Units Q&A] Warlord711:
HuiFei Support told me there is a new FW coming "soon" the next days.
[MTCB Android Head Units Q&A] Cannois:
I bought it with Alib

They say me it is the voltage of the car
[MTCB Android Head Units Q&A] Warlord711:
Directly from HuiFei ?

Did you measured the voltage ? How get the unit connected to car onboard electronic ?

My VW uses the Quadlock System and there is no chance to get a wrong voltage, because its always 12v.
[MTCB Android Head Units Q&A] javlada:
I have exactly the same model with 1.77FW installed. I would like to update it. But it seems the MCU version is KGL (with o numbers) and I don't know which version I should use. I you find anything useful please let me know.
[MTCB Android Head Units Q&A] lamjanus:
If it`s the same model, i got KGL4 firmware from Erisin.
[MTCB Android Head Units Q&A] pascaltd:
Hello there,

Do you think we can put android 4.4 on our Huifei?
[MTCB Android Head Units Q&A] ProfessorKnox:
YES!!! That's it. PERFECT. THANK YOU!
[MTCB Android Head Units Q&A] typos1:
The manufacturers of Kyde units is a company called (surprise surprise) Shenzhen Klyde Ltd :

http://www.szklyde.com/en/index.asp
[MTCB Android Head Units Q&A] Warlord711:
At least they have a webpage that doesnt look totally **** like KGL got:

http://www.chinacaraudio.com.cn/en/index.asp
[MTCB Android Head Units Q&A] typos1:
Doesnt lock up for me, what browser are you using ?
[MTCB Android Head Units Q&A] uncleg:
Dear Colleagues,

I have a Witson W2-A7501, HuiFei KGL-based platform.

From 1.77 to 2.02 FW version I have annoying issue with USB-flash. When I try to play music from it, randomly I got the "SD Card Unexpectedly Removed" - error message.

Does anyone know how to FIX it ?
[MTCB Android Head Units Q&A] Warlord711:
Maybe your government blocks chinese websites. Are you from US ? :p

Firefox 32
[MTCB Android Head Units Q&A] typos1:
No, the UK, I am not getting any problems with this site, I can view all links and pages, so its unlikely the UK government is blocking Chinese sites.

Surely if it locks up for you, then it would be your government blocking access as its working for me ?

But its probably nothing to do with governments and just to do with load on the sites or servers in your country, China, my country etc

I get some problems on the Roadmaster site, its very slow to load, although it does eventually and I can view things.
[MTCB Android Head Units Q&A] Warlord711:
Ok i misinterpreted your response. I thought your browser doesnt load the page.

I just mentioned the page because it does look cheap, some stuff seems to be from 2010 or 2008.
[MTCB Android Head Units Q&A] typos1:
Ah, ok :)

Yeah, a lot of Chinese sites can be like that, welcome to China !
[MTCB Android Head Units Q&A] MaurizioSalv:
hello

excuse my English.

I also have Bmw e46 and steering wheel controls work!

You need to check that the purple wire coming out of the can-bus goes on the purple cable input in car stereo.

mine was reversed

a question at all!

You can change the key assignment instance that starts the music player VLC media player from this menu?
[MTCB Android Head Units Q&A] that_dood:
Then I guess mine's not a klyde cause it's not on their site. This is confusing haha
[MTCB Android Head Units Q&A] typos1:
You find out who makes your unit by going into settings/about and seeing what the MCU type is - what does it say ?

---------- Post added at 04:57 PM ---------- Previous post was at 04:55 PM ----------

What app is that in the picture ?

What unit have you got ?

That looks like the interface from a WD8801 unit
[MTCB Android Head Units Q&A] MaurizioSalv:
My model is VW-8001

Model	VW-8001

Quantity	1Piece

Screen Size	7.0 Inch

Screen Resolution	1024 x 600

Touch Screen	Yes

Detachable Panel	No

Brightness Control	Yes

Menu Language	English , Greek , Danish , Norwegian , Dutch , Arabic , Turkish , Japanese , French , Maltese , Hungarian , Latin , Persian , Slovak , Czech , Greek , Romanian , Swedish , German , Finnish , Chinese Simplified , Chinese Traditional , Bulgarian , Norwegian , Hebrew , Italian , Spanish , Portuguese , Russian , Polish

GPS

CPU Processor	Cortex A9 1.4GX2 HZ

Support Map	IGO , Route66 , TOMTOM , Garmin , Sygic , Careland

Main Frequency	DDR 1024GHz

Store Capacity	8GB

GPS Card Slot	Standard TF Card

Voice Guidance Cruise	Yes

GPS Dual Zone	Yes

Operating System	Android 4.2

Media Formats

Radio

Station Preset Qty.	50

Support RDS	for European countries

Radio Response Bandwidth	AM: 520KHz-1700KHz , FM: 87MHz-110MHz

RDS	Yes

Radio Tuner	AM , FM

Bluetooth

Built-in Microphone	Yes

Bluetooth Function	Received Call , Dialled Call , Missed Call

Bluetooth Version	V4.0

TV Tuner

TV Signal Type	Digital TV tuner

Video Output	HDMI

Amplifier

Amplifier Peak Power	4 x 60W

Audio Mode	Natural , Rock , Jazz , Classical , Live , Dancing , Popular

Interface

Interface Port	RCA

Audio Input	2 Channel

Audio Output	6 channel

Rearview Camera Input	Yes

External Memory Max. Support	64GB

Video Input	2 Channel

Video Output	2 Channel

Working Enviroment

Working Voltage	12-14V

Working Temperature	-20 to +80℃

Storage Temperature	0 to 50'C

Other Features

Certification	RoHS, E-mark, SGS, LSCD

Is possible install Xposed framework for change buttom assigned to radio, music ecc..?

I downloaded com.dr8.xposedmtc_v122 but does not work when I install on.

returns with error "package damaged"

How can I fix?
[MTCB Android Head Units Q&A] mikejclark:
Hi you all. I've removed my unit from my car and I'm trying to get it powered up in my house. I've borrowed a voltage regulator capable of supplying 15V and 4A. I've connected +ve from the power supply to the yellow (battery) wire and -ve to the black (ground), but the unit won't power on. I think I also need to power the red (acc) wire, but I'm not sure if this requires the same voltage as the yellow. Can I just connect the red and yellow together and power with 13V(ish)? My unit has can-bus so I'm not sure what needs to be powered when the unit is stand alone. I have the Audi a3 unit

Any advice would be appreciated
[MTCB Android Head Units Q&A] agentdr8:
Yes, twist red and yellow together, supply it with +12VDC.
[MTCB Android Head Units Q&A] mikejclark:
So I stupidly changed my can bus settings and my unit wouldn't boot in my car. I've now got it booted and connected to a power supply in the house so I can revert to the correct setting. Firstly, which can bus setting do I need for Audi a3 (I've forgotten what it was)? Secondly, do I use the front micro USB or rear USB to update firmware?

Many thanks in advance. Would be truly buggered with you guys!
[MTCB Android Head Units Q&A] agentdr8:
Can't help on the canbus settings, but for updating firmware, you're going to be using the gps sdcard slot. Unless you've got a custom recovery (TWRP) on there. Then you'd want the front miniusb port.
[MTCB Android Head Units Q&A] mikejclark:
Oh I see... Not too dissimilar to putting a custom ROM or firmware on my phone then. Thanks
[MTCB Android Head Units Q&A] typos1:
I think are are on the wrong thread, can you post a picture of what it says in settings/about, what MCU version do you have ?

Edit: Googled it, you have a derivative of the WD8801 with a dual core Telechips processor, I m afraid you are on the wrong thread.

Search "WD8801" on xda, that is the thread for your unit, it has different internals to the units in this thread, although Xposed should still work, I assume youve rooted it.

---------- Post added at 07:01 PM ---------- Previous post was at 06:56 PM ----------

EXACTLY the same - its Android ! Whatever version you have, on smartphone, tablet, TV box, dev board, smartwatch etc etc, its all the same.
[MTCB Android Head Units Q&A] agentdr8:
Never encountered that error before, unless the apk itself was corrupt. You can try and sideload it from an sdcard.

But if your headunit is not running the MTC apps, then it won't work anyhow.
[MTCB Android Head Units Q&A] typos1:
His head unit is not an RK3066 based unit, its a Telechips one, so MCU etc are different as well.
[MTCB Android Head Units Q&A] typos1:
Then you have a Klyde unit, it tells you on the first page how to identify what type you have :) KLD = Klyde