yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] Reptile-X:
Almost all those point are one way, except point 4. The car is communicating with the radio is one way and radio back to car is together 2 way, that's how these HU's are advertised and till FW 2.02 it was not working, with radio communicating through canbus you should see the station and RDS information on your car’s MFD (Multi Function Display) also navigation information like arrows and warnings come through canbus, but I don’t think navigation part will work any soon but it is possible with other brand radio's like Pionneer and Kenwood with a Axxess canbus adaptor to show navigation information on VW and some other cars.

To expand your list:

7. Navigation on MFD

8. Adjusting ECC Airconditioning through HU

9….

I think we only can dream about those last two I mention but that’s what works with dual canbus, also when I connect VCDS (VAGCOM) I get communication errors whit the radio when I check fault codes on the car.

But I like to see some pictures from a VW MFD too, maybe zorantoma can post those?

I am adding an image from the advert where I got my HU and indeed radio information is very basic there:
[MTCB Android Head Units Q&A] ev1966:
For me the display on the car MFD didnt work on mcu/FW 1.99. I havent tried 2.02 yet. In all cases when there was a choice of mcu i used kgl4. On other versions hardware keys were not right. I don't know what xposed framework could contribute to having the MFD working? Maybe it was just the reboot that did the trick for Zorantoma?

What interests me: could it be that after downgrading mcu and FW some bits (read functionality) of newer versions stay active?

---------- Post added at 01:06 PM ---------- Previous post was at 01:02 PM ----------

You are right about two way canbus , it says in what directions communication can take place. Number 4 is the only one from HU to car.

This depends on software and not on hardware i guess (don't we have all the same canbus adapter for the car brand we have?)

The points you are adding are wishes for future updates.

What i am curious at, is what functions do we have at the moment? I added a number 7and 8 myself: 7: doors opened and closed 8: parking sensors

I guess the info in VW MFD is like you mention in your picture. Indeed very basic. It isn't a musthave for me.
[MTCB Android Head Units Q&A] Reptile-X:
Those points were possible things which work with 2 way canbus indeed not really whishes, but you are right we need to focus on things which work now, we need more information from people who claims what works and what dont.
[MTCB Android Head Units Q&A] ev1966:
I got mine from Erisin, they mostly have radio's of this 4.2.2 series for different brands. Dunno they have universal ones based on android 4.2.2.

http://www.erisin.com/Supply-special-car-dvd-player_c13

Advantage buying from them could be (when you are living in Europe): no risk for paying import tax because they can send from UK.
[MTCB Android Head Units Q&A] kwalsh24:
Hmm so I have an xposed framework + appsetting question, how can you tell if its working ? I've tried to adjust the dpi on various programs and nothing seems to be changing ?
[MTCB Android Head Units Q&A] typos1:
Some launchers allow you to choose your own icons, could try installing Nova or something ?
[MTCB Android Head Units Q&A] W12d0m:
627

Is there a way to kill/quit the radio app the radio app when starting PowerAmp?

only way i managed to stop the radio is to start the video palyer or the normal music player

thanks
[MTCB Android Head Units Q&A] kwalsh24:
On my unit I can kill any app with the power button, the power button on my radio kills or also works as the back button

---------- Post added at 07:46 AM ---------- Previous post was at 07:45 AM ----------

Hmm never really thought of that, shall try that and see, I use apex on my phone. May try that on the radio and see what happens
[MTCB Android Head Units Q&A] typos1:
I use Nova on my phone, but I ve used Apex in the past, cant remember whether they both allow you to change them, or whether its just one of them, but have a play with them and other maybe launchers and it might sort your problem out :)
[MTCB Android Head Units Q&A] coyttl:
Also check that the launcher didn't cacne the icon. Clear the launcher's cache and see if it's fixed after that. :good: :)
[MTCB Android Head Units Q&A] pakidermo5000:
Exactly, then you will have 2 radios. (I usually change the icon so you can differentiate them).

Then, if you want the radio to work with the "Radio" button, you will have to replace the stock app with the one called OEM.
[MTCB Android Head Units Q&A] Skitals:
Interesting the reception was different between the two units using the same antenna/adapter. AFAIK, both the AN21U and the new HuiFei both use the same radio chip. Some of it might be due to software difference, but also hardware implementation.
[MTCB Android Head Units Q&A] ProfessorKnox:
I'm interested in whether anyone of us has radio frequency shown in the MFD as presented in the advertisement and can present a picture of it.

Otherwise it looks like as being an advance notification of something which is planned to be implemented in one of the future releases.

Notes: (1) Some previous WIN CE units definitely were able to perform this because I had such an HU previously.

(2) Recently I saw a re-sellers advertisement who defined "Two-Way CAN bus" as "Support of SWC", i.e. no word a bout HU -> MFD.
[MTCB Android Head Units Q&A] kwalsh24:
Good call, will give that a shot and see, if not iill install apex as it does allow icon changing.
[MTCB Android Head Units Q&A] edding7:
It doesn't work on mine. (v1.77)

I tried to manually modify lcd.density at /system/build.prop and i've got a nice bootloop
[MTCB Android Head Units Q&A] kwalsh24:
Hmm interesting, I recall on 1

86 I could adjust Google Play music and it adjusted fine, tried to adjust sygic today and it won't do a damn thing lol.

If anyone has xposed framework + appsetting working properly with the dpi adjustment, can you forward me your framework release info, think im rrunning a beta version that was on their site, perhaps that's my issue.
[MTCB Android Head Units Q&A] edding7:
Finally i solved bootloop just flashing again v1.77 from stock recovery.

I was using all the day getting the unit usable again. Here i go some thoughts about all the time expended:

nandroid backup in TWRP format doesn't work for anything. Becouse stock recovery doesn't know how to handle it.To convert all this *.win files to and update.zip you need a factory signed zip.

it doesn't worth it by now to flash TWRP recovery becouse you lost the factory update

Viper4Android is a killer EQ. Even for me that i have a Mosconi DSP power amplifier.

Google play works with SWC like a charm if you disable Stock music app. LOT OF THANKS TO [MENTION=5867075]KeiserSozeyFr[/MENTION]. You are my hero!!
[MTCB Android Head Units Q&A] zorantoma:
For me works only radio with MDF
[MTCB Android Head Units Q&A] ev1966:
Thanks for the picture zorantoma!

What firmware and mcu are you on? And maybe other programs like xposed framework +......?
[MTCB Android Head Units Q&A] uncleg:
FW 2.03 MCU KGL4 was released. Link is: pan.baidu.com/s/1o6qMI7K.
[MTCB Android Head Units Q&A] kwalsh24:
Where did the source come from ?
[MTCB Android Head Units Q&A] Reptile-X:
Thanks zorantoma, looking good there! You are on FW 2.02 and MCU KGL4 2.02 if I am not mistaken, also you had to root I guess for Xposed framework, did you use any module in Xposed?
[MTCB Android Head Units Q&A] uncleg:
From aliexpress traider.
[MTCB Android Head Units Q&A] jacko55:
Can anyone suggest a HuiFei or similar to fit a Honda Civic 2009 UK car ?

Any links would be good.

Thanks :)
[MTCB Android Head Units Q&A] zorantoma:
Actualy i'm on Fw2.02 and MCU KGL1.77 because my canbus stoped working with MCU 2.02. I only use Gravity box for xposed and the list stile music app.
[MTCB Android Head Units Q&A] agentdr8:
If you're using a mode button via SWC, XposedMTC exits the radio app when switching to Poweramp (or other Music app of your choice). I suppose I could write something else that would watch for Poweramp launch intent and then send the proper av_channel switches to mute the radio output.
[MTCB Android Head Units Q&A] kwalsh24:
Apex launcher solved the icon issue, the icons must be built into the default launcher
[MTCB Android Head Units Q&A] typos1:
Is not working properly - it should show "NET FM" in the MFD, but I think thats more to do with the radio app - the Chinese dont seem to realise that the station name is more important than the frequency if RDS is working so I think the app is outputting this to the MFD rather than the station name. If you modified the xml and swapped station name and frequency round theres a chence it might sort it.

Um, sorry, no ! - All it takes to find one is typing into Google "HuiFei", "KGL", "Klyde" or "Roadmaster" + "Civic".

If nothing comes up, there are none and you need a universal one.

But if you need someone to Google something for you, then I m not sure that one of these units is for you :)

---------- Post added at 08:56 PM ---------- Previous post was at 08:54 PM ----------

Cool :)

Its a pity there isnt a way to control the receiver from Android so you didnt have to have the big box next to the stereo.
[MTCB Android Head Units Q&A] Reptile-X:
Ah okay, ev1966 and most other guys are using MCU 1.77 or the kernel of it indeed. I would love to see mp3 song names on MFD but maybe later on with newer updates, this unit is still popular and sells enough I think.
[MTCB Android Head Units Q&A] W12d0m:
My Car has no SWC :( would be very cool if you could work something out
[MTCB Android Head Units Q&A] zorantoma:
I would love to se that to in future updates. I never had wifi problems or bad radio reception,but yesterday my canbus stoped workin with 2.02MCU,so i tried 1.77 and it started to work again. If anyone is interested,just download quickboot from market,to get easy access to recovery an than just select MCU.img and flash it. Works excelent :)
[MTCB Android Head Units Q&A] ndbssie:
Lock Screen

Have wireless ADB acces to my GS unit.

/efs/imei/ don't exist.

So i entered those commands:

adb connect 192.168.1.20:5555
adb shell
mount -o remount,rw -t rootfs rootfs /
mkdir /efs/
mkdir /efs/imei/
echo -n ON >> /efs/imei/keystr

When i reboot the GS unit the /efs/imei/keystr are completely gone!

What am i doing wrong here?

I hope someone can point me in the right direction to get this lock screen working.
[MTCB Android Head Units Q&A] ptclabs:
you can get it working but your unit will be unstable. It started resetting it self at times. Best way to get one is use multiuser. it starts with a locked screen. You can use hidden settings to get the setting menu for it also.

try some of the lockscreen apps from the market. one did worked but i crashed my unit for another reason so I had to reset it. there are a few ways to lock the screen. Some are depriciated and no longer work on this thing. They will just turn the screen off. Make sure you have it set to swipe or something in the settings before trying.
[MTCB Android Head Units Q&A] kwalsh24:
So here's a question, what's the chances that the current 800x480 systems could have their screens upgraded to the 1024x600 screens when the screens are released in the machines? Or will they have a total regut to support the higher Res screen?

Hmm still can't get xposed framework + appsetting to work on 1.99. May downgrade to 1.86 and see what happens, really hope I can fine tune sygic so it displays correctly. As it kinda overlaps some buttons on screen :( example being when it does alternative routes, its to show 3 but only does 2 as the drag to change route button overtakes the 3rd route option. May just try to adjust the dpi manually to fix the issue to make the interface slightly smaller.
[MTCB Android Head Units Q&A] Warlord711:
So anyone got the opportunity to flash + check 2.03 FW yet ?

I tried to do yesterday but i killed my car's battery ^^

Forgot to switch off seat-heating while testing rear-cam and other stuff....
[MTCB Android Head Units Q&A] kwalsh24:
I second that question...
[MTCB Android Head Units Q&A] daronnn:
Hi, I have problem with Klyde unit. When I playing DVD I don't have color on headrests (black and white movie). Did somebody have similar problem? Maybe somebody know solution to fix this?
[MTCB Android Head Units Q&A] kavo77:
Ive flashed 2.03 image and MCU on a kgl-7618. as before buttons work (not sure on play/pause though but i never use it)

Seems to work don't know what has changed.

There was some app that I've never seen before. I cant find the icon to open it but it showed all the music on my ipod with correct names/artist, didnt show ipod playlist. Now that I've installed poweramp I cant find it. ITs not "Music" or "Ipod"
[MTCB Android Head Units Q&A] typos1:
Sounds like the DVD is outputting in NTSC and the headrests are PAL, or the other way round, try changing picture settings on the headrests or the DVD.
[MTCB Android Head Units Q&A] daronnn:
Thank you for your reply. I also suspected problems with matching PAL/NTSC but my headrest system accepts the input signal in both PAL and NTSC. I tried to play DVDs recorded in PAL and NTSC but no improvement.

Is it possible to change dvd format on output?

In the meantime, I ordered a "Bidirecttional-PAL-TO-NTSC-NTSC-TO-PAL-converter" from aliexpress but might be able to solve problem without additional hardware?
[MTCB Android Head Units Q&A] lamjanus:
Is it possible to connect my laptop to the front USB? Or another USB connector? Anyone experience with Car audio service tool and deezer or spotify? Its not reading front or back touches on the unit.
[MTCB Android Head Units Q&A] ptclabs:
Got my fei sample in today

Well I wish I was happier I can say.

Light always on. Guessing that is i fixable by changing the mcu version. It has 2.01 on it now which is what it was sent with.I will try 2.02 tomorrow.

The biggest problem is the keys. When you enable multi user again they are embedding the keys in the pre set up user. So I lost everything but a back button. No volume or anything. That makes it useless if we cant adjust volume. I will talk to them about that.

If we can get someone to write a key remapper for this thing we would be golden. Button Savior crashes on pro, and turns down the wrong volume on standard. I think if we could get pro not to crash we could just map buttons as we wish using call functions.

It does sound better than the gs unit though. Other than THE POP oh god I see what you were all complaining about now. They should really fix that. Quite stressing while backing up.

.

I may try to copy one profile to the other and see if that fixes it.
[MTCB Android Head Units Q&A] agentdr8:
Just connect a miniusb to the front port and your laptop should be able to see the headunit via adb. Back usb ports don't seem to work for adb though.

---------- Post added at 08:40 AM ---------- Previous post was at 08:38 AM ----------

Send a PM to [MENTION=5867075]KeiserSozeyFr[/MENTION]. He created the Car Service app and might be able to augment it to remap other buttons as well.
[MTCB Android Head Units Q&A] ptclabs:
Send a PM to [MENTION=5867075]KeiserSozeyFr[/MENTION]. He created the Car Service app and might be able to augment it to remap other buttons as well.[/QUOTE]

I sent him a message before about the app. He may just be too busy to deal with it, or has lack of interest. I would throw him a couple of bucks for fixing this though. I sure others would also.

I guess you would have to search to figure out what is what without a source. So something like try until volume = volume plus one then print out what the hell it is, but then again how do you figure out which volume is the right one also... sounds like a pain that someone will have to have a problem with also to be willing to fix. Hope someone does soon, or I get off my ass and learn java.
[MTCB Android Head Units Q&A] agentdr8:
It's even easier than that; there's an intent that gets broadcast every time a button is pressed. You can catch this (com.microntek.irkeyDown) and inspect it for keycode, and then offer choices of what to assign it to.

If Keiser is busy/away, I can take a look at writing this.
[MTCB Android Head Units Q&A] Warlord711:
I just updated to 2.03 - Golf MK5 - KGL-8401G

SWC still bugged - 3 time press bug

GPS does not work for me

Car Setup App where you can pick CANBUS stuff (never worked for VW) is gone.

Cant see any progess, just another major bug.
[MTCB Android Head Units Q&A] george2350:
Backing up

What is the correct of backing up what is installed now?

I was thinking of doing a Nandroid backup - like mentioned in the first post.

My unit (KGL-7698N - 7 inch VW model with knobs) does not have front mini-USB - so not sure how to get to the bootloader - Can someone help - please.

Thanks,
[MTCB Android Head Units Q&A] parazit26:
microphone

hey everybody,

i know this was asked before but i am going to ask again. how is your external mic working? mine is pretty bad/low volume. I have tried to unsolder the internal mic but it didnt help, soldered a female jack adapter instead of the internal mic but still the same issue. Now i am thinking that its maybe my microphone that i ordered from keylo. Can anyone suggest a good mic?

Also another big thing is radio reception. I have tried an antenna amp but this didnt help. Anyone here that figured out how to solve this?
[MTCB Android Head Units Q&A] typos1:
I m sure if you search "internal mic" or similar in the thread search box you will find a recentish post where someone added an external mic using the internal wiring, pretty sure they poste a link to the one they bought.

A few pages back someone reported that their poor reception was due to the antenna not being plugged into the radio module, so take the lid off and check that and the earthing maybe ?
[MTCB Android Head Units Q&A] Reptile-X:
I am using Parrot carkit mic, it was already there because my old radio was hooked with Parrot, I removed every hardware related to Parrot except the mic and hooked that to my KGL HU, people on the other side don’t even notice I am talking through my HU so it must be good.

You can buy Parrot mic separate.

This is how it looks like.
[MTCB Android Head Units Q&A] parazit26:
do you use the mono mic or the stereo mic?
[MTCB Android Head Units Q&A] Reptile-X:
I am using single one, dual has different plug. ;)
[MTCB Android Head Units Q&A] uncleg:
Unfortunately, Your solution isn't working for me.

I still randomly getting this annoying error message.

I think it's hw issue. :crying:
[MTCB Android Head Units Q&A] R4D3N:
I'm sorry to hear this. For my it's working. Have you tried another USB Memory Stick? It's possible that you have a broken one. Try with another one.
[MTCB Android Head Units Q&A] sprfly:
After having returned my KGL-7610 due to a number of issues I am looking at the other alternatives. One question I have on the 7650 is how do you get into recovery if I need to with the reset button behind the removable panel?
[MTCB Android Head Units Q&A] ptclabs:
That would be outstanding this is a annoying thing. I have seen a folder like that in the user directory. I might have to have a look. On the GS unit the only one that poped up for me using a sniffer was 158 'back' Menu would have worked but, you know it closes the sniffer. There is a map in a text file somewhere I am missing on the second user. Just havent found it. Not the Generic.kl in the system directory. Second user does not follow it for some reason, or maybe buttons are inactive?

I think a remapper they lets users enter their own button numbers and their own text of what they should be would be just outstanding. Then they could do whatever they want. If I knew more about how the whole keything worked, I would love to take it on as a first project, but if your willing great!

Also a app that spits out the button number pushed would be cool also. I have tried some from this site, they just do basic stuff like back and home etc. not stuff like mute etc.

Think I will step outside and try some putint and see if I can figure out anything

welp Im back

2 Video

4 Mute

19 Vol+

23 Amp settings

27 Vol-

44 Loud

43 Radio

42 Disk

49 EQ quick set

50 BT

51 Navigation

57 Home

69 BT

72 a/v in

74 settings

84 music

85 dim screen 50%

I accidently left car service running so I missed forward/ back. Also did not have radio running so no tune up / down

I stopped at 100 if anyone else cares to go further.

am broadcast -a com.microntek.irkeyDown --ei keyCode (number) will push the buttons.

so now my question is how do we map what to what? Im so lost...there has to be a map somewhere...

I tried same functions on my HF with multi user. The functions work the buttons do not. So now i have at least a volume control with multi user just have to wait for the su to kick in with a script. A little better, but I want much better.

So it is confirmed, if we can figure out how to map the buttons on the front to anything we want, multi user works fine also. I sorta like have a home and a apps button on the multi user more than the sometimes home sometimes app on the main user. (you cannot unlock the screen in reverse if you have a camera hooked up)

I went back on main user with a sd card plugged in with some tunige on it looking for forward back and play buttons but came up empty. went 1-190. I think i see why the car service app only does these. Seems they might be different or maybe above 190
[MTCB Android Head Units Q&A] parazit26:
thanks, i ordered one. Hopefully my problem is the mic :)
[MTCB Android Head Units Q&A] uncleg:
I experimented with another one USB memory stick and USB HDD with external powering and try to change USB-cables, but I got the same results on both backpanel USB ports :crying:

FYI: On my car dvd model frontpanel USB is absent.
[MTCB Android Head Units Q&A] blankers:
Did you just plug it into the rear mic socket, or did you hard wire it and did you disconnect the existing mic ?

I plugged a mic into the back of my unit and it's still rubbish. Still debating whether it's worth the time and effort of removing the HU to disconnect the original mic....
[MTCB Android Head Units Q&A] lamjanus:
Ok, so it`s not possible to connect the HU so that is behaves like a mass storage device? Like connecting a mobile phone to your laptop.
[MTCB Android Head Units Q&A] 1-2-Hak:
I just cut the power (with a switch) and turn back on while holding the power button. Happy to hear another way...

---------- Post added at 08:59 AM ---------- Previous post was at 08:19 AM ----------

Thought I would post up how I am progressing with my Custom Launcher

[youtube]ag3HzR8S5Wk[/youtube]

This is a work of love and so far am happy how it is going.

Its the car dash on the car dash :)

Pretty much everything is working as per the video description.

I use gestures to go back and home from any of the screens

will attach another video showing the speedo working as that is cool :)
[MTCB Android Head Units Q&A] killabee1980:
Looks really great, nice!!
[MTCB Android Head Units Q&A] _arecki_:
Looks very nice and requires a lot of work but I am affraid it is very not practical in everyday use in the car. You have to focus on the road not aiming small areas on the screen to change something. Additionally there is a lot distracting things on the screen and you have to focus to find what you are looking for.
[MTCB Android Head Units Q&A] 1-2-Hak:
We dont drive the cars here. We use Google Driverless car - http://en.wikipedia.org/wiki/Google_driverless_car

Dont tell me you still manually drive a car?

:)
[MTCB Android Head Units Q&A] switi:
anyone knows how to save the balance/fader settings in the amplifier section? need help please!
[MTCB Android Head Units Q&A] 1-2-Hak:
But seriously - this is stage one. I wanted a nice looking interface and the actual touch areas are quite big (bigger than the original icons)

The next step is making things contextual and fully activated by voice (like android auto). I will be using autovoice for this.
[MTCB Android Head Units Q&A] _arecki_:
That sounds interesting. I am looking forward your final product.