yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] xrapidx:
I'd imagine you'd need root access... Change what your device appears as to the play store. I think the incompatibility has to do with screen res.
[MTCB Android Head Units Q&A] Mister-Z:
Hi all,

Does anyone know if the external microphone (back 3,5 connection) is stereo (3 ring) or mono (2 ring)?

Thanks
[MTCB Android Head Units Q&A] sciallo:
Install Market helper (not from playstore). You do need root.
[MTCB Android Head Units Q&A] dark alex:
Hi

does anyone have a clue on which Audio Stream to manipulate to lower/raise volume programmatically?

Tried Music but no effect... Now the questions is... My error or wrong stream?
[MTCB Android Head Units Q&A] kwalsh24:
Anyone else have this issue? Ill find out in the next day or two if my setup does the same or nit. Think it depends on the system setup and the amp quality as to how bad the thump is. Sadly it's been a while since I've had my sub hooked up to remember if I had this issue with my old radio
[MTCB Android Head Units Q&A] avantissimo:
What i found equipped with radio, was jack mono, but have also tried another attack with stereo and work equally well.
[MTCB Android Head Units Q&A] cat2115:
1) Could anyone who update system and mcu from OP first page please share what version it is? I would like to know if it's the same as mine or it's the latest. If would be nice if OP list the version in the first post.

2) It took like more than 30 second for Amp to shut off after engine is off. Is there any setting to decrease it?

3) Will "Scosche SLC4 Speaker Level Converter With 80 Watt Max" help with the pop noise after Amp shut off? Or use ground loop isolator?

4) Unit Bluetooth: The person on another line can hear me clearly but for me i can't hear them. The sound is so low at a max volume. Anyone can help me for a fix?

5) Unit does not show caller id name, it just show number. Any work around to show name?

Thank you in advance for helping me.

Besides what I listed above, love the unit. Sygic working great.
[MTCB Android Head Units Q&A] patmann03:
Hi, so I was thinking about putting a tablet in my car... but now I've decided maybe it would be better to go with an android headunit if they existed... i found this topic and did some research... I found these 2 headunits. I believe the first one is made by HuiFei, however, the second one looks like it would match my car better (looks closer to stock).

I have a 2010 Jetta TDI... not sure if anyone else has one that's replaced it.

Is it worth it to replace the stock headunit? Would I be able to upgrade the speakers (add amp and subwoofer) with either of these units? Can I use google maps or Waze? It looks like it can be rooted which I would imagine I could then use these apps as long as I set my phone up as a wifi hotspot or blutooth internet share.

http://kaigele.en.alibaba.com/produ...ive_Touch_Screen_Multipoint_support_OBD2.html

http://www.aliexpress.com/item/2014...-for-VW-Golf-5-6-Passat-Jetta/1573213189.html
[MTCB Android Head Units Q&A] Tainted:
Got for the second one: HuiFe make which is the same unit as my BMW one.

http://www.aliexpress.com/item/2014...-for-VW-Golf-5-6-Passat-Jetta/1573213189.html

Fantastic Android radio, fast, capacitive and works better than my previous last 2 after market radios I've tried. You get full play store access so it's really limitless on what you can install technically.
[MTCB Android Head Units Q&A] patmann03:
The second one looks like it's a different company. Wincen, not HuiFei... which is why I wasn't sure. I like the look of it better, but I couldn't find a proper thread on it.

Do you know if it has the outs for an amp/sub and and different speakers?
[MTCB Android Head Units Q&A] gy_ro:
I believe it's written in the text in post 1 : it's MCU version V1.77

Other questions :

1) It seems that if you remove the unit out of the car and place it back, all radio settings are lost. A bit stupid since they could be easily stored ...

2) Has anyone else noticed a blink regularly? I would describe it as a rather slow refresh of the screen.

3) Attached DVB-T2 tuner from HuiFei has a passive antenna although the unit supports active antenna's too. If you switch to TV in the HU I get B/W picture at first and after half a minute or so it changes to color. Anyone experiences with that?

I didn't open my unit yet to see if there are any loose connectors and to make it support an external Wifi antenna. Maybe it solves some problems once done.

Ronny.
[MTCB Android Head Units Q&A] cat2115:
I check in System\app and I don't see CarService.apk

OP: Sorry I saw you did mention update is MCU v1.77 under Method 2. I read so many time and I can't believe I overlooked lol
[MTCB Android Head Units Q&A] J0sh_FG:
The second one IS NOT A HUIFEI

Just look at the specs and the interface photos .....seems like a AN-21 unit
[MTCB Android Head Units Q&A] Tainted:
Apologies this looks like my interface and specs:

http://kaigele.en.alibaba.com/produ...ive_Touch_Screen_Multipoint_support_OBD2.html

Took browser openings as order or I donno. Anyway that's the same interface as mine. It's not 1080p though but screen is good, and a root and DPI change would make it better.

Has speaker outs and line outs from the rear.
[MTCB Android Head Units Q&A] getehem:
Right, it is a so-called AN-21 from Tonghai....by the way Tonghai has now nice 10.1" android 4.1 headrest monitors....see:

http://android-caraudio.com/en/ecra...es/1749-deux-lecteurs-dvd-en-appuie-tete.html
[MTCB Android Head Units Q&A] Mister-Z:
Thanks, was what i thought

Other question:

Is this a Huifei or compatible for all mods?

w w w .aliexpress.com/item/Free-Shipping-Pure-Android-4-2-2-Toyota-rav4-dvd-gps-navigation-With-Capacitive-Touch-Screen/1890310835.html
[MTCB Android Head Units Q&A] kwalsh24:
ill let you know this week, I have a 09 Jetta tdi that I'm installing one of these units into. I think it will brydges well worth it
[MTCB Android Head Units Q&A] cat2115:
What is the best fit device you would recommence for Market Helper setup? thx
[MTCB Android Head Units Q&A] kvantum:
Hi All,

I'm looking to buy a unit that fits my car, and found one that is made specifically for it

http://www.aliexpress.com/item/Pure...-CX-5-2012-2013-with-GPS-CPU1/1886134267.html

But I can't figure out if it's got HuiFei guts or something else.

All the specs match HuiFei, but there are just enough differences to make me doubt it.

Could anyone else chime in?
[MTCB Android Head Units Q&A] agentdr8:
I'll test again to be sure, but in the past, if I've waited >30sec after the "shutdown" and then hit the power button, it would either start the unit up from a cold boot (shows the boot animation), or it wouldn't respond to any button presses, and I'd be forced to hit the reset button.
[MTCB Android Head Units Q&A] clearchris:
double post
[MTCB Android Head Units Q&A] computerman522:
Has any one been able to mirror a Samsung device's screen on these android head units? I have an Eonon GA5163 and a Galaxy Note 4. I just got done installing android 4.4.4 on the head unit. Now i would love to mirror my phone because tethering the unit to my phone every time i want directions is a hassle. Any solutions?
[MTCB Android Head Units Q&A] clearchris:
Use tasker to automatically tether when bluetooth connects.
[MTCB Android Head Units Q&A] Maverick923:
MCU Update

Has anyone been able to update MCU version MTCB-JY-V2.07 to JY v2.16?

I just want to make sure I understand correctly that it is possible.
[MTCB Android Head Units Q&A] koimr:
If it helps I went from 2.08 to 2.16 on my JY without any issues.
[MTCB Android Head Units Q&A] ErAzOr2k:
Can anyone tell me, if "acc" -cable is providing enough power to connect two active USB Hubs? Or is 12V cigar lighter the better solution?
[MTCB Android Head Units Q&A] clearchris:
Depending on your car and the amp draw of the hubs, maybe. I would use a relay attached to acc and switch another line on. Check the amp ratings for your car.

http://m.ebay.com/itm/271551630408
[MTCB Android Head Units Q&A] typos1:
Yes, instructions on the first page.

---------- Post added at 11:49 AM ---------- Previous post was at 11:47 AM ----------

What date are they ?

You CAN post external links if you edit them slightly, put "HyyP" for instance, we can copy the link into a browser and change the "yy" to "tt".
[MTCB Android Head Units Q&A] nrjdgn:
Malaysk's roms 4.4.4 good work

All is good :D

https://www.youtube.com/watch?v=2e8Jms6vxkQ&feature=youtu.be
[MTCB Android Head Units Q&A] ultradj83:
Dears, I'm still experiencing Wi-Fi drops on streaming and big file downloads. Anybody else?
[MTCB Android Head Units Q&A] clearchris:
I have noticed some hiccups when an application gets superuser privileges, even in the background. Are you running rooted?
[MTCB Android Head Units Q&A] Ninonuk:
I also installed the latest ROM of him and now i have a problem! Do you try to get into recovery mode with this image? I don´t get the regular Recovery! I still have CWM Recovery and and I can not select anything there. Someone knows how I get the normal recovery back?
[MTCB Android Head Units Q&A] uncleg:
Primary reason of this issue is, wireless chip overheating due high speed transmiting/receiving of big data.

Secondary is unstable power of all USB peripheral circuits connected to the internal USB-HUB.

This is looks like the USB flash "unexpectedly removed" issue.
[MTCB Android Head Units Q&A] clearchris:
What do you think it needs? Heatsink, fan, both? I notice my KLD has a spot for a fan, but it's not used.
[MTCB Android Head Units Q&A] typos1:
Hmm, you guys on 4pda.ru got a fix ? A heatsink on the wifi chp maybe ? as well as a powered usb hub or maybe something like pakidermo's usb mod (post #8949) ?
[MTCB Android Head Units Q&A] uncleg:
Heatsink is enough, but big problem to fix it on a board without causing short circuits around the wireless module.

For usb powering, we using additional electrolytic capacitors between GND and +5V USB lines on both ports . I will add the screenshots in 30-40 mins.
[MTCB Android Head Units Q&A] typos1:
Great, thanks. :)

I have a 128Gb usb stick the music plays for a few seconds, then no sound for a few seconds, then plays for a few seconds, then no sound for a few seconds etc, it does this most of the time, bit occassionally it plays fine. I was hoping a powered usb would fix this, not sure it would now due to something DSA said, any of you guys getting similar problems ?
[MTCB Android Head Units Q&A] uncleg:
Monthes ago I got similar problems, but with the same files each time. It's not a powering issue, this is corrupted mp3 files, try to reload them again from other source. Also check USB stick filesystem integrity with PC
[MTCB Android Head Units Q&A] clearchris:
Good point on the heatsink, I was thinking I might get away with some thermal glue, but with all the bumping of being in a car, probably not a good idea.

Do you think the extra capacitors are needed because of issues inherent to the usb power circuit, or due to external fluctuations in automotive electricity? Do you think it would be worth it to add a stiffening capacitor to the power right before the radio?
[MTCB Android Head Units Q&A] typos1:
It cant be mp3 file corruption - I dont use mp3 because the sound quality is total rubbish due to them using lossy compression. I use flac and none are corrupt, exactly the same set of files written to a 320Gb hard drive play without the problem. Also usb drive is fine, formatted on FAT32, formatted from the factory. I could reformat in fat32 on my pc and see if that helps, dont think it will, but I ll try it.

---------- Post added at 05:44 PM ---------- Previous post was at 05:43 PM ----------

Depends how big the heatsink is.
[MTCB Android Head Units Q&A] clearchris:
Considering that many heatsinks are aluminum, and aluminum, being non-ferrous, can be cut with regular power tools, size shouldn't present much of an issue. I'm sure I have something in my box-o-goodies that could have a donor heatsink.

Of course, remember eye protection, flying shards of AL are no fun.
[MTCB Android Head Units Q&A] uncleg:
USB power MODs by kumarai (4PDA forum)

KGL (green PCB)

L23 change to resettable fuse 1A (same as for lower port) .

С128 and С141 - installed 10uF - change to 100uF electrolytic. Don't forget about polarity.

P.S. If You want to stabilize one lower USB-port, change the c128 only.

KLD (blue PCB)

inductor under C128 (yellow rectangle) change to resettable fuse 1,2-2A

c128 change to 220uF electrolytic. red "+", blue "-"

All capacitors must be 10V or above
[MTCB Android Head Units Q&A] typos1:
I ve got an RK3188T Android TV box and I bought a couple of very very small ally heatsinks from ebay very cheaply for the processor (it didnt come with any heatsink at all), they even came with 3M heatproof tape on the back ready to fit.
[MTCB Android Head Units Q&A] Dridri-7800:
Radio ignition problem Huifei

Bonjour à tous,

veuillez excuser mon anglais j'utilise Google Traduction.

J'ai un problème avec mon autoradio huifei, quand je mets le contact il ne s'allume pas toujours. Parfois je dois même couper et remettre le contact 10 fois si pas plus.

J'avais à l'origine la version JellyBean 4.2.2 avec la version MCU KGL4 2.01 et je l'ai updaté en KitKat 4.4.4 avec la version MCU KGL4 2.21 mais le problème persiste.

Je suis très ennuyé, est-ce que quelqu'un aurait une solution s'il vous plaît.

Hello everyone,

please excuse my English I use Google Translate.

I have a problem with my car radio Huifei, when I put the contact it is not always on. Sometimes I have even cut and then switch to 10 times if not more.

I originally the JellyBean Version 4.2.2 with the MCU Version 2.01 KGL4 and I update to 4.4.4 KitKat with MCU Version 2.21 KGL4 but the problem persists.

I am very bored, did anyone have a solution please.
[MTCB Android Head Units Q&A] Dridri-7800:
Radio ignition problem Huifei

Bonjour à tous,

veuillez excuser mon anglais j'utilise Google Traduction.

J'ai un problème avec mon autoradio huifei, quand je mets le contact il ne s'allume pas toujours. Parfois je dois même couper et remettre le contact 10 fois si pas plus.

J'avais à l'origine la version JellyBean 4.2.2 avec la version MCU KGL4 2.01 et je l'ai updaté en KitKat 4.4.4 avec la version MCU KGL4 2.21 mais le problème persiste.

Je suis très ennuyé, est-ce que quelqu'un aurait une solution s'il vous plaît.

Hello everyone,

please excuse my English I use Google Translate.

I have a problem with my car radio Huifei, when I put the contact it is not always on. Sometimes I have even cut and then switch to 10 times if not more.

I originally the JellyBean Version 4.2.2 with the MCU Version 2.01 KGL4 and I update to 4.4.4 KitKat with MCU Version 2.21 KGL4 but the problem persists.

I am very bored, did anyone have a solution please.

Véhicule/Vehicles : Audi A3 8P 2011 Facelift (With Canbus)

View attachment 3199188

View attachment 3199189

View attachment 3199193
[MTCB Android Head Units Q&A] uncleg:
You talkin about which contact ?

Wi-Fi or something else ?
[MTCB Android Head Units Q&A] Dridri-7800:
The contact of the car (to start)

When I put on, the radio is not always on.
[MTCB Android Head Units Q&A] Nova8316:
For using miracast, I'm using Miracast player from the store, the only solution that works for me with a windows phone device. Mine is a Eonon GA5153 aka KLD.
[MTCB Android Head Units Q&A] typos1:
I ve checked the usb stick for integrity all files are fine, its FAT32 already, dont really think thats the problem, but reformatting has solved the storage unmounting prblem for others so will give it a go, even though its not actually unmounting, just the sound is going.
[MTCB Android Head Units Q&A] Nova8316:
Have you checked your canbus settings seems to be an issue related to this.
[MTCB Android Head Units Q&A] uncleg:
How your headunit is connected for powering ? Is the BAT and ACC wires in harness are directly connected to the car connectors ? Or only BAT wire and ACC signal comming from can-bus decoder ?

Is the problem with powering on always exists after installation or it appeared a few time ago ? When it appeared and after what?

Please clarify that.

Check the proper canbus type is chosed at the HU factory settings.

Check the connectivity between car and HU and canbus decoder.

Check the contact groups at the ignition lock

---------- Post added at 11:16 PM ---------- Previous post was at 11:00 PM ----------

So, maybe flac audio player affected to playback ? Have you tried another one? Maybe it's buffering depth issues, b-cos USB drive has no cache unlike HDD
[MTCB Android Head Units Q&A] Dridri-7800:
BAT is always supplied with 12V while the ACC through the Canbus.

I already checked the voltages when the unit did not come on but the tension is so the problem is not with the connections I think.

In the factory setting menu I chose the No. 22 AUDI A3 / A4 (simple) because it's the only one I have, despite the update.

The problem is there since I bought it.

Friends told me to remove the decoder canbus but when I take it off nothing goes.
[MTCB Android Head Units Q&A] uncleg:
Exactly, because after take it off, You need to additionally provide the ACC-signal from car to HU.

Try to choose VW/Skoda (simple) and other from VAG, canbus type.
[MTCB Android Head Units Q&A] typos1:
I m using the built in music app cos I like it, could try another to see if I still get the problem.

I m also looking at reformatting - the FAT32 type the usb stick is formatted in is FAT32 0x0b (which is for partition sizes up to 2047mb), whereas my external hard drive is formatted in FAT32 (LBA) 0x0c (which is for partition sizes up to 2 Tb), this sounds like it may be the problem, so gonna try it.
[MTCB Android Head Units Q&A] Dridri-7800:
Ok thank you I will try one of GOLF 7, I think it should be similar

I will tell you if it works.
[MTCB Android Head Units Q&A] uncleg:
should be better if it will be NTFS ?
[MTCB Android Head Units Q&A] typos1:
FAT32 is better for compatibility - more devices can read FAT32 and I d like it to be read in any device I plug it into, not just my car stereo. Linux can read drives formatted in FAT32 up to 2 Tb. NTFS is only better for Windows, but I dont use Windows - my pc is Linux (Ubuntu) and so are my phone and headunit (Android) so if I was going to choose another format it would be EXT4, but then if I wanted to put my usb stick in a friends Windows pc then it wouldnt be able to read it.

The FAT32 (LBA) 0x0c is for FAT32 formatted up to 2 Tb so this sounds like it could be the problem.
[MTCB Android Head Units Q&A] Dridri-7800:
Ok thank you I will try this solution.

I inform you of the result tomorrow.

thank you
[MTCB Android Head Units Q&A] uncleg:
Sure, FAT32 is more universal for multi-OS usage, but has some limitations, You know :).

Anyway try it for the purity of the experiment :)
[MTCB Android Head Units Q&A] typos1:
Well it may have limitations but it still should work with FAT32 as Android can read it up to 2Tb so I dont think its the cause of the problem.

Just quickly tried it with my JY unit and it had the same problem on one port but not the other, it was working occasionally before, so not convinced its sorted it - it could be one of the occasional times it worked.

What I did notice was that the LED on the end is constantly flashing whereas on my pc its constantly lit, so now I actually think it might be a power issue. I ll have a play again tomorrow I ll rig up a makeshift powered usb hub to see if that fixes it.
[MTCB Android Head Units Q&A] uncleg:
I think LED indication depends on which USB 2.0 or USB 3.0 standart is using now or depends how the storage is connected to the host (OTG/Mass Storage/etc). If You have a power issue, you'll get the unexpected unmount the flash drive error messages like I've got.
[MTCB Android Head Units Q&A] Dridri-7800:
Another question.

Do you have access to the menu "Developer Option"?

Because I can not do it :(

I tapped on the build number as shown in many forums but nothing happens.
[MTCB Android Head Units Q&A] typos1:
Its usb 2.0 drive and the head units are usb 2.0.

OTG is on the front port on my Klyde, as far as I know, the ones on the back are standard usb.

Not sure if the JY units with no buttons have OTG at all.

Need to try more times on the JY to see if its still working just occasionally, or if it always works on that port.

I ll have a go at properly reformatting (I just used the "edit format" option) and I ll try a powered usb hub, I ll try it all - busy day tomorrow ! Lol.
[MTCB Android Head Units Q&A] pants001:
Guys i have a KLD unit currently running MTCB-KLD-V2.16

I notice in the google drive repository that the latest version is V2.21

I don't have any issues at present, but is this worth upgrading?, whats the improvements in versions

Ive been reading this thread with great interest but couldn't seem to find any change logs anywhere
[MTCB Android Head Units Q&A] Krisjan89:
The reason for lack of changelogs is that the supplier does not include one, thus we have no real idea of what the mcu updates do, besides what we can observe.
[MTCB Android Head Units Q&A] ayub4uin:
I Need KGL 4.4.4 Official Update Image for my HU

My HU running Official KGL 4.4.2 800X480 with MCU V 2.09. I need Official KGL 4.4.4 800X480 update Image. Please provide KGL4.4.4 800X480 Update Image
[MTCB Android Head Units Q&A] devin2:
Normally it's "126" for developper setup
[MTCB Android Head Units Q&A] s.tb:
original firmware for KYD unit.

6.2 for 800х480, 7.0 for 1024х600

Feb 2015 hyyp://1drv.ms/1Et067H

I tested it for 800x480, everything looks fine, no issues were detected
[MTCB Android Head Units Q&A] Ken Ishiimoto:
I have test KLD2_KK444_800x480_150113_root_mod_boo_2015-03-04_v1.0.0.zip on my Pumpkin MTCB-JY-v2.16 800x480 for 2009 Ford Focus/Mondeo

First look is really good except one thing: when i hear music on the media player or radio and i push the homebutton, the view change to the homescreen and the music stops. For a tenth of a second i see the widget of the app, then it stops. The same with the navigation. A message appear "IGO has stopped". Normaly all runs in the backround, is that and issue/error or can you set it anywhere?

Greetings Harald
[MTCB Android Head Units Q&A] ultradj83:
Yes, I am.

I was believing it happens after some time of intense Wi-Fi traffic, but I cannot be sure about this.

In my car i need to switch off and on Wi-Fi to make it work again, is it the same your side?

Thanks!
[MTCB Android Head Units Q&A] OneCheekyDevil:
I had the Wi-Fi issue too. Discovered that it was the MCU's fault. Flashing diffident firmware solved it.

The latest isn't always the greatest.
[MTCB Android Head Units Q&A] ErAzOr2k:
Thank you. What about the blue (amp) wire? would that be also possible?
[MTCB Android Head Units Q&A] ultradj83:
Well I know this, in fact I'm using the original one because I had a lot of issues with any other.

I'm on a ES9610A, what's your device?
[MTCB Android Head Units Q&A] OneCheekyDevil:
I've got the ES9005A
[MTCB Android Head Units Q&A] R4D3N:
Does anybody have a service manual or an electrical scheme of the unit?

A friend of mine has a Huifei KGAC746 and it worked perfectly last night, and today it won't start anymore. It has power, all fuses are good. It doesn't power up at all, neither in recovery mode.
[MTCB Android Head Units Q&A] nathanielgr89:
screen mirror your android radio display to another monitor

does anyone how to screen mirror your android radio display to another monitor (flipdown tv). It only does it when the android radio is playing a dvd but i want to be able to do it with youtube netflix ect. basically all the time. im on android 4.4.4
[MTCB Android Head Units Q&A] uncleg:
Wi-Fi module directly connected to android through usb hub. MCU hasn't affected to it.
[MTCB Android Head Units Q&A] typos1:
Great ! Thanks.

This KYD thing must be another manufacturer then.
[MTCB Android Head Units Q&A] typos1:
It might be, they might have their own launcher, different than the others, or it might be the same, there might be other improvements, only one way to find out !

How do we get both images into one ?
[MTCB Android Head Units Q&A] ultradj83:
And what are you actually using as mcu?