yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] Enc0der:
Hi!

I ordered these two items:

http://www.ebay.com/itm/391183488387

http://www.ebay.com/itm/261925066587

I connected the DC Converter to the VCC/GND inputs of the amplified mic, and the OUT (and ground) to the external microphone cable from the HU.

Everything seems to work fine, there's a small red LED light in the amplified mic unit that tells me it's "on", and when making a call my voice does sound louder than with the internal mic or the passive external mic - However it comes with a terrible TERRIBLE very high noise - that makes everything impossible to listen.

Any idea what can be the cause of this?

thanks
[MTCB Android Head Units Q&A] Drewvanders:
I have 4.4.4 on a gs model. How do i change the app icons on the bottom bar of the home screen? How do change widgets on the home screen? Can you get the sound to fade when going into reverse? Can you tether wifi via usb from a phone?
[MTCB Android Head Units Q&A] halloj:
Audio and a DC DC converter might not be the ultimate solution. Since the DC DC converter is driven at a high frequency.

If that is the kind of high pitch noise you're talking about. A resistor and a zenerdiode might be good enough or an analog

voltage regulator. Try with a battery. If the noise disappears that's your problem.
[MTCB Android Head Units Q&A] hippie131:
Do I need to flash the MCU to install the firmware? I got the eonon GA5153F and the MCU says it is MTCB-ZD v2.68. I can't seem to find any info on it. Can I just flash a RK3188 800x480 Malaysk firmware without messing with the MCU?
[MTCB Android Head Units Q&A] djksage:
Hello,

i have a generic android HU, and have problems with bluetooth connection to my phone.

My radio info:

Version MCU

MTCB-KGL-V2.55

May 19 2015

Android Version

4.4.4_01062015

Can i upgrade MCU to last version (KGL v.2.72) for resolve bluetooth connection?

http://xdaforums.com/showthread.php?p=61291848#post61291848

the most important is take same MCU ( KGL, KDL,...) not brand?
[MTCB Android Head Units Q&A] TripFlex:
It looks like the Google Drive links are all down, I own a hosting company and would be MORE than happy to provide a repository for hosting any files or documentation needed. I'll even provide a free VPS to any developers that need one to work on some of this stuff, just shoot me a PM and i'll take care of it free of charge (my only way to give back right now).

Thank you very much for all the hard work you have put into these custom ROMs. Yours are by far the most customized, configurable, and geek friendly that I have found so far. Just sent you a $20 donation to show my appreciation, thank you.
[MTCB Android Head Units Q&A] 2safe4you:
AMAZING JOB !!!

I just think it's a great pity that such contributions go here in this very large topic under.
[MTCB Android Head Units Q&A] TripFlex:
[MENTION=3590033]Malaysk[/MENTION]

As mentioned in last reply, love your work (even enough to donate), and was hoping maybe you or someone else could point me in the right direction.

The one thing I would like to do is to work on converting the look of ROM to have the flat material style, as i'm not too keen on the current style (but functionality wise it's perfect). Could you point me in the right direction on what someone would need to do to take your version of the ROM and customize it like this? It's been probably 1-2+ years since i've done any Android dev work, but shouldn't be too difficult to get back into it, was just hoping someone could point me in the right direction so I don't spend hours and hours (maybe even days) just trying to figure out how to get the point of being able to customize things.

I haven't done any actual ROM development before, but i've created my own handful of Android apps, flashed/rooted pretty much every phone I've ever had, and know Linux very well as I own a hosting company....so with all of that, I think I should be able to handle this fairly well and be able to provide some real contributions back to this community of users.

[MENTION=4339055]pakidermo5000[/MENTION]

Not sure if you got tagged in my last reply, but see the reply before this one regarding hosting the files, let me know I would be more than happy to help out however I can. I've even thought about maybe setting up a quick site we could use to keep track of fixes, troubleshooting, etc ... so it doesn't take 5 days of skimming the 1000-2000 pages of posts on here :P
[MTCB Android Head Units Q&A] agentdr8:
Hit the Car icon and then you can drag away the stock icons and put other launcher icons there.

Reducing sound while reversing is under Settings somewhere.
[MTCB Android Head Units Q&A] Brendo:
That's what we've been trying to do with the wiki. Also the op updates his post occasionally

---------- Post added at 10:00 AM ---------- Previous post was at 09:59 AM ----------

You'll need a custom launcher for icons and widgets. Pretty sure sound lowers when in reverse automatically (at least it does for me); not a huge amount though
[MTCB Android Head Units Q&A] Telemachus:
By far the Bluetooth is the greatest shortcoming of both my heifei units. Can you explain some more about your solution?

I am thinking of doing something similar but using AVIN.
[MTCB Android Head Units Q&A] sabruri1:
Look here

http://xdaforums.com/android-auto/android-head-units/app-modding-radio-music-movie-kld-jy-t3217197
[MTCB Android Head Units Q&A] agentdr8:
Sure. The Parrot CK3000 (and other CK and MK models) sit in-line between the vehicle stereo harness and the headunit. It has a built-in amp that can output audio directly to the speakers, so when calls come in and are answered, it mutes sound output going to the headunit, and passes audio to the speakers directly.

To integrate this more seamlessly with Android, I use Tablet Talk on both my phone and headunit. The two communicate with each other over the wifi hotspot running on my phone. The phone is only paired to the Parrot, so it knows to use it as a bluetooth "headset". When a call comes in, the phone notifies the headunit via Tablet Talk, and prompts to answer or dismiss a call via a dialog box.

The only downside of this setup is that you end up with a separate volume control for bluetooth calls. The Parrot units have a control module with answer/hangup buttons and a volume knob.

I don't think it would work via AVIN, since the Parrot amp is strictly line-level outputs.
[MTCB Android Head Units Q&A] Telemachus:
That's great. Expensive but elegant. I'm going to try some noise cancelling microphone options.

But i have also been thinking to use this thing hooked up to avin:

iKross A2DP Bluetooth 4.0 Hands-Free Car Kit with 3.5mm Aux Input Jack - Black https://www.amazon.com/dp/B00I61P46A/ref=cm_sw_r_awd_fmlewbGKCAE6V

And use tasker on the headunit to select AVIN with a phone call. I just need to figure out what event could trigger that.

Or its time to put some effort into reverse engineering the on board bluetooth module... even the Chinese need to make phone calls right? How does this not bother them??
[MTCB Android Head Units Q&A] agentdr8:
I don't think you can switch source outputs when a call is taking place; the MTCBluetooth app talks to the MCU directly to handle the audio routing.

As a test, you could try hitting Home and launch the AVIN/AUX app while you have a call connected.
[MTCB Android Head Units Q&A] Telemachus:
We are talking about pairing the phone with a separate bluetooth device and then using non-bluetooth methods to trigger the head unit. Tablet talk, tasker, etc. Syncing bluetooth to these units is almost pointless. If I am over 30 MPH no one can understand me... and I've done the mic mod.

Amazon has some cheap noise canceling mics that require their own power...
[MTCB Android Head Units Q&A] chipyy94:
Radio bug + wheel keys

If i listen radio in car and turn off car and then i turn on car again , sometimes radio app crushes or doesnt play anything and i must press radio station again to play. And i have also problems with keys, because MUTE and PHONE key , has the same function... i can separate them does have anybody any idea? :)
[MTCB Android Head Units Q&A] btrax:
Hi guys

I have a JY unit and I tried to install this ROM : http://huifei.fs-fileserver.de/cont...024x600/JY 1024x600 20150819 (stock no root)/

The device boot into recovery, flash all the file but now since that I'm stuck in bootloop. Is there a way to reinstall the ROM ?

Do I need to unmount my device and do something with a laptop ( like flash via bootloader)
[MTCB Android Head Units Q&A] chipyy94:
Steering wheel keys

I posted also pictures now. So if set Mute button for mute and then Phone button to accept call it write phoneaccept key has been defined , so if i understand i must change their values , but don know how :) so please please help me, because its very annoying.
[MTCB Android Head Units Q&A] Sasha0574:
Hi guys. Anyone here have some expertize with these chines units' can bus decoders?
[MTCB Android Head Units Q&A] ypelletier:
Need backup

Hi all...

I need help, I've bought a Rupse QL-VWG992 on june and install it in my Seat Leon FR (2010) To have the possibility storing my apps on mSD card using link2sd, I've updated both mcu & firmware WITHOUT verify which version I have to put in (newbie inside) all is fonctionnal except canbus (steering wheel control and all informations display on device before the update)

Maybe someone can help me or at less give me a way to resolve this stupid problem.

Thanks, thanks and thanks a lot for your(s) answer(s).

Yves
[MTCB Android Head Units Q&A] DJCannonball:
I found some stuff relating usc-dac. it doesn't seem to work very well (yet)

there is native support for usb-dac from Android 5.0, our HUs only have 4.4.4

i tried my Sony Xperia Z2 which has 5.1 it doesn't 'see' my M-Audio Fast-Track-pro external USB-soundcard, i also tried my newer rig Focusright Scarlet 2i4. that one doesn't even power up.

ok no usb-dac for HUs yet then.

anyways some bright guy in the internet solved my hissing noise:

just short the shield of the RCA-line cables to the car's ground, voila hissing is completely gone.

i am just totally stunned that KLD didn't short this by design!

what a relief, after 8 months of hissing.. it's gone! :laugh:
[MTCB Android Head Units Q&A] nFKT:
The KLD2 MCU as attached is actually 2.72 any chance you have a 2.78 replacement?

Thx!!!!
[MTCB Android Head Units Q&A] Twilek:
Hi Sabruri,

your apps look quite cool, any chance to adapt those to 1024x600?

Regards

Twilek
[MTCB Android Head Units Q&A] drewvdn:
Xposed MTC doesn't work for me. It runs at start up but doesn't function. Since I installed it my track skip on my wheel has stopped working with poweramp. It shows up on screen just doesn't skip, works for everything but poweramp.

Can anyone recommend apps for integrating with phones. I have a htc m8. I would like to mirrorlink or share data via usb. Also I cant connect SWC to show battery or signal with my phone. Does anyone know how to configure it.

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

I'm facing a issue with screen of my unit?

When I engage the reverse gear or receive a call from Bluetooth, the screen is gonna stay black and not back.

The screen only restore if I restart the Unit (pressing power 10 sec. and press for 2 secs again to restart unit on bootloader).

Anyone facing this problem too? Can help?

Thanks in advanced.
[MTCB Android Head Units Q&A] BimbisFriend:
No solution in sight?
[MTCB Android Head Units Q&A] toxstoxs:
Hi.

I've installed latest Malaysk's Custom on my Joying RK3188 MCU : JY Quad core

i've made a factory reset after flashing

i noticed that i don't see anymore the INTERNAL Flash storage.

I see only the System (modded to 2GB instead of 1GB stock rom) and all the external SD (GPS card and USB).

Is it a bug? or .. do i have to do something particular to see it again?

Can someone help me?

Regards
[MTCB Android Head Units Q&A] Profane4711:
Hey guys, i really messed up and i hope someone can help me.

First, please excuse my english, it's not my native language.

I flashed an MCU which was not for my radio. I didn't look close enough -.-

Now, the whole android system is working, but the buttons doesn't work.

Even the power button has no funktion now, so it i impossible to get into

the bootloader again. I don't remember the original MCU version of

the radio also. Has anyone an idea to get into the bootloader and my

buttons working again?

Regards
[MTCB Android Head Units Q&A] Macces:
I use an Amplified Antenna Adapter for my car. Car itself has a booster but the new radio doesn't supply it with power. With the adapter everything is fine.

I use this one for my Opel:

http://www.amazon.de/FAKRA-Antenne-...6100304&sr=8-1&keywords=fakra+phantomspeisung

Greetings

Macces
[MTCB Android Head Units Q&A] agentdr8:
In theory, an app sideloaded that's available from the Play store should be able to auto update (assuming the Play store thinks it's compatible with your device). I don't believe Maps auto updates on the Huifei, regardless of how you install it though. Possibly due to screen resolution or device type filtering.
[MTCB Android Head Units Q&A] parazit26:
Thanks i will try one of this adapters.

Grüße :)
[MTCB Android Head Units Q&A] kramer826:
vw Golf 2009 canbus

I have been reading through the posts in this discussion ,Could some one tell me what is meant by dual canbus function.

Are all the units in this thread dual canbus units?

For vw golf owners can they please tell me how is the operation of this function,do the units display dashboard information properly and also was any information lost from centre section of drivers screen?

Thank you as I am very interested I these units particularly hui fei units but would like good canbus function ie reverse sensors etc if possible
[MTCB Android Head Units Q&A] typos1:
That gives uz more info on the "GS" units - that back is different to the other 3.

You could alter your build prop so it shows up as a different device, you could try market enabler app (does a similar thing) or you could delete the google play package and add the latest version.

Just a few pages back this was discussed - dual CAN Bus is 2 way CAN Bus, several units are supposed to have this no one has reported it working yet.
[MTCB Android Head Units Q&A] kwalsh24:
Invalid url? Its this working for anyone?
[MTCB Android Head Units Q&A] Macces:
Is functional for me and a workmate. Maybe you can't open it, because of German characters.

www.amazon.de/FAKRA-Antenne-Adapter-Phantom-Verstärker/dp/B0029XY28C/ref=sr_1_1?ie=UTF8&qid=1406100304&sr=8-1&keywords=fakra+phantomspeisung

Set the URL as code, so you can see it.
[MTCB Android Head Units Q&A] kwalsh24:
Yeah think that's the issue, didn't even notice those till now
[MTCB Android Head Units Q&A] Tap82:
Amplifier App loses settings

Anyone noticed that whatever custom settings you set in the Amplifier app will be reset after restart?

I need to open the amplifier app to set the custom settings everytime I start my car. The app just drops the settings you used last time.

It's very annoying as the radio by default sounds terrible with too much bass.

Anyone every fixed it?

I saw a Loud setting fix, but haven't see anything about the Amplifier settings.

I could even live with some tasker setting to reset the amplifier upon start.
[MTCB Android Head Units Q&A] kwalsh24:
Hmm mine seems to stay on the custom eq settings on power down/up. However I too do notice that the radio apk seems to have more bass in it then the music apk. Kinda wish there was separate eq for the two.

Also anyone figure out a way to quickly mute the audio?
[MTCB Android Head Units Q&A] Tap82:
I have a mute button on my device. If you don't have it you could reconfigure one of the buttons to work as mute.

Like I also have a Loud button that I don't use for anything.

I read on this thread that there is some xml file where you can change the key mapping.
[MTCB Android Head Units Q&A] kwalsh24:
Hmmmmmm see that there I didn't know haha, never knew there were units with a mute button. May have to look into this
[MTCB Android Head Units Q&A] Dareksa:
I suggest you check the power connection on the radio and +12V Battery.
[MTCB Android Head Units Q&A] coyttl:
Nice looking unit - what is the other end on the 3G cable? USB, or some other connector?
[MTCB Android Head Units Q&A] Tap82:
That part is fine. After I remove the keys I still see it's Powering off for a few seconds properly. After that if I insert the keys back put it in ignition within couple of second maybe a half minute the radio turns back on immediately. No loading. So it has a power all the time, it just turns off itself after a half minute and loses the amplifier settings.

So the device you guys have keeps custom amplifier settings between boots, right? If you set it really high and no bass, on the next full reboot it will just load like that in the radio app?
[MTCB Android Head Units Q&A] kwalsh24:
Ill verify that in errr 5 hours when I get off work but I'm 99% sure that my amp settings remain how I set them. Which is normally custom with very slight bass increase
[MTCB Android Head Units Q&A] agentdr8:
That doesn't sound right. It should be writing the settings to the system prefs after you make changes. Do you also lose the radio station presets every boot?

---------- Post added at 09:49 AM ---------- Previous post was at 09:46 AM ----------

The reason for the difference is sound from the radio is output through a different av channel than the music app, which Android has influence over for the latter. If you want to tune your music sound better, use either an equalizer app or Poweramp has a nice EQ built into it.

I have a spare button on my swc that I mapped to mute.
[MTCB Android Head Units Q&A] kwalsh24:
Hmm true I guess I could go back to using vipre audio now that the capability of changing the default music app can be changed, thanks for the app that makes that possible btw, ill have to try it soon
[MTCB Android Head Units Q&A] Boodro1:
Just a four pin connector if I recall right.

---------- Post added at 11:22 AM ---------- Previous post was at 11:16 AM ----------
[MTCB Android Head Units Q&A] typos1:
Youve just reminded me that someone posted the name of a company selling GS units recently and I was going to do some research on them, it was something "audio" I think, but cant remember now and cant find the post anywhere.

Did I imagine it ? !

Edit - no, but I got it wrong - it was "Rhthym Electronics Co Ltd" and have heard of them before, not sure if theyre manufacturers or re-sellers, cant find any Android stuff on their site, trying to see if I can find more info on the "GS" versions, can anyone with one post pics of the "about" screen ?
[MTCB Android Head Units Q&A] agentdr8:
My bad, I forgot we're talking about external BT units. I think if you plan on using Tablet Talk, it probably exposes some intents when a call is coming in. A small app could be written to switch the source to the AVIN, and then switch back after the call is over.

The main reason I went the Parrot route was because the call quality on both ends when using the headunit was horrendous, even after the mic mod, and using a Parrot mic. I think the lack of quality noise cancellation contributes to that.

And you've selected Poweramp as your preferred music app in the preferences?
[MTCB Android Head Units Q&A] niru1978:
MP3 problem

Hello

I have a KGL head unit with Malaysk latest rom. I usually play music from my phone via bluetooth, and lately I thought of having the mp3 files on USB and using it on my HU. 1st time it played well but ever since then, I get a "cannot load files" error or the music skips after 3-10 secs of play.

even after I reset / installed stock rom I have the same problem, the USB works charmingly on other devices and in my laptop. I am not sure what is causing this problem, I also faced this problem after I copied the files onto the GPS SD card!.

Please guide.
[MTCB Android Head Units Q&A] rikobiff:
Hi!

I have a problem with my new installed RK3188 4.4.4 (not rooted)

If a cold boot interrupts by motor crank or key on/off, the screen will go white. It seems that all other functions works when it has been started up. The only way to make the screen work again is to go into recovery, and then reboot it.

ACC is been disconnect when cranking the engine, will the ACC delay fix solve this?

All inputs are welcome.

Regards Rickard
[MTCB Android Head Units Q&A] DJCannonball:
[MENTION=3590033]Malaysk[/MENTION]

i flashed your latest firmware today

August 24, 2015 for 1024X600

Only for RK3066

after booting i noticed the MTCRadio app doesn't receive anything at all, not even any noise

i also noticed that in factorysettings, the radio frequency was set to American, i have changed it to europe, applied it and rebooted, but still no reception at all.

i checked the antenna cable, that same cable seems to work fine on my car's stock radio.

it's like the system doesn't 'see' the fm-tuner hardware at all. could it be a wrong fm-radio chipset selection in the factory settings as well?

there's one other thing, i was on MCU KLD 2.55 music dark leo and i flashed MCU KLD2.64 dark leo

nevertheless both are dark leo's, i noticed my volume button up and down stoped working (which was fixed in 2.55)

and also i don't like the sound of MCU KLD2.64 dark leo. i'm missing some lows and and a little too much mids, even EQ couldn't correct it.

i will try other KLD MCUs tomorrow, trying to isolate these problems
[MTCB Android Head Units Q&A] superboost:
i have Something i don't understand....

plenty of you immédiately search for flashing MCU's, firmwares, modded apps...

have you give a try for original in your HU, are you so insatisfied than you can't resit for flashing... re-flashing... brick...

after, more of you cry, critical firmware or MCU issues... an so on..

keep cool mens, is this HU is existential problem, you play like bad sorcerers and complain after....

Backup...backup... reflexion... backup... flashing.... pray... diagnose.... reflash... ask for forum solution after.... re-flash... brick... lost can bus.... lost all... reflexion is the solution, is there necessary to upgrade? Its your toy...you play, you win or you lost... that's life. :confused:
[MTCB Android Head Units Q&A] gguevara:
Hello agentdr8,

I know you said you would be out on business for the week and not be able to work on the iGo Primo TTS voice issue, or anything else (this was last week). How are you looking for this week? Also, how can I send you donations?

Separately, I installed your Poweramp Toast. For some reason, I can not get the toast to show on any screen. I just want the toast to show when I navigate back to the unit's default home screen (the clock and weather widget screen). I am looking for your toast to be the only toast/widget to show on the home screen while Poweramp is playing in the background (similar to how the radio or ipod toast are the only ones to show when navigating back to the home screen). How can I get it to do this? Also, does your toast have <<back & foward>> on-screen buttons?

Thanks again, and let me know about the donations or if you need anything else.

ggee
[MTCB Android Head Units Q&A] agentdr8:
This coming week is a short-week for me; I'll be out of town again Wed-Fri. I might have some free time on the weekend to take a look. If you're looking at XDA via browser and not Tapatalk, there's a donate button along the left side:

<----- over here:

Poweramp Toast by default does not display the toast on top of any other application. You have to specifically choose which app(s) you want the toast to display over, under the "apps whitelist" preference. I believe the stock launcher is called "Launcher" or "Home" or something like that. I can check next time I'm in my car.

And it's just current track info with album art; Toasts are a stateless view, and don't offer an onClick method. I would have to redesign the app to use a dialog window (or custom view) to add control buttons. I might look into that for a future release, but given how busy I've been, it wouldn't get any attention for a while.