yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] ftsur:
What version are you running? How big is the drive? I could only get 4.2.2 roms to work for my 256gb drive. Anything higher would crash my head unit when I plugged it in and cause a reboot. I posted about it, but never got any response. I assumed it had to do with the way 4.4.2 and 4.4.4 mounted external storage. I tried a couple of fixes I read on other tablet threads and nothing worked so I just settled on 4.2.2. If you are using power amp, there are settings for buffer in there that may help.
[MTCB Android Head Units Q&A] TooBusy:
I'm not sure about your experience and others who flashed rom several times, but almost every time I flash rom I get some new problems and some problems fixed, even if it's the same rom.

I had a problem playing music, when changing a folder or a song on the USB key often caused "storage removed" message and Music Player crash. This was fixed by flashing rom.

I had a problem when Music Player starts playing, but after 15 - 20 sec no audio, the progress bar continues, but the sound doesn't come back automatically like in your case. Again, this was fixed by flashing rom.

I have a bunch of USB keys, some of them work fine some don't. One of them worked fine before last flash, now it doesn't work. It may be time for another flash.

I remember a while ago someone was saying that USB subsystem in these units seems to be badly implemented. I'm starting to feel the same.

My current problem No 1: 3G USB dongle not working. Again USB. How knows, maybe another flash and it might start working.

---------- Post added at 12:41 AM ---------- Previous post was at 12:32 AM ----------

Most of that information is already on the multifunction display. So, I don't see the point. Besides, Torque provides more information and looks much better.
[MTCB Android Head Units Q&A] Nova8316:
Simply, Because if I have these informations on the dash display, I can't use the next button on the steering wheel. I have a VW and the MFD show 3 pages : motor informations, audio, settings (when the car is stoppped). I must be on the audio page for the next button to work.

I have a usb OBD2 cable but I wanted to show data that a already read on the can bus. No more device needed, because we allready have a possibility to access these data.

I have an app called "Vehicle" which show these data but without refreshing. The goal is to mimic this app to be able to show my dashboard information directly on the HU.

Also, my HU is showing when I open the door so it's there but need some digging to have something that fits my need.

And the hidden reason is because we can.
[MTCB Android Head Units Q&A] haxigi:
hello again.

Is there possibility to change default music app to PowerAmp? Default just sux at sound quality, poweramp is just great!
[MTCB Android Head Units Q&A] patagonia1:
Yes, you need to install XposedMTC app by agentdr8 that will let you change default music app.

(also need root and xpsed framework for xposedMTC to work)

regards
[MTCB Android Head Units Q&A] typos1:
It worked fine with my 320Gb hard drive, the sound just cuts in and out with my128Gb flash drive. Linux can support hard rives up to 1Tb. Using the built in music app.

EDIT: just remembered I updated to the January KGL version, the previous KGL version (December) only did it with the front USB, the rear was ok, latest does it on both.
[MTCB Android Head Units Q&A] pakidermo5000:
I remember having a similar issue, but only with the MTC player, not with PowerAmp. It could be software related, but I think it is weird. In my case, I have mounting/unmounting problems with the rear USBs, not the front one. I think it is an issue with the current of the USB adapters. Rear USBs seem to not have enough current to get USB sticks and hardrives working properly (probably 3G adapters as well), while the front one has. I have bought the current reducer that malaysk posted a while ago and i am waiting for it to arrive. Once I get it, I will take HU inline and output 5V and 0.5A to the rear USBs, so that they always have enough power. If you are using a USB hub, maybe is better to output 1A. I hope it will fix the problem with mounting and unmounting. I will report once done.

BTW: any improvement with the January version ? Or with KGL over KLD ?
[MTCB Android Head Units Q&A] typos1:
Interesting, my old 320Gb HD had an extra USB plug for devices that didnt provide enough power, it worked perfectly in 4.4.2 and 4.4.4 with the main USB lead plugged into the front and the extra one plugged into the back. With the December KGL update my 128Gb flash drive worked fine on the rear USB but not on the front, with January's KGL the music cuts in and out on both. With 4.2.2 the 320Gb one would cut in and out sometimes, but not always,bizarre.

Cant see any other changes in the update.
[MTCB Android Head Units Q&A] TooBusy:
I had a problem with KLD MCU 2.02 when SW controls, Next and Previous buttons on the left hand side, were reversed. This was fixed in MCU 2.12. Also 2.16 and 2.20 are fine. There is no need to be in audio page, but if you are, then Up and Down buttons on the right hand side can also be used as Next and Previous buttons. Of course, your unit and CAN Bus decoder may be different, and that's where the problem is.

BT OBD2 adapter cost me $7 and it's out of the way, no cables. Unless OBD2 doesn't work for you, I still don't see the point.

Ah, now I see.
[MTCB Android Head Units Q&A] pcvsoft:
You use a 3G USB dongle? This problems happened to me all the time, when I used a 3G dongle. I removed the 3G dongle, and I never got any storage issues again.
[MTCB Android Head Units Q&A] Nova8316:
In fact, on my steering wheel, the key aren't really Next and Previous. It's just Up and Down. So If I'm in instrument page, it will change between spee"d, fuel, average speed.... If I'm in audio, then it's next and previous. I prefer see the speed on my display because of the "precision" versus analog counter (this is relative, i'm using it because we have lot of fixed speed cam there)

So I think this only bother me but I want to test somethings.

Also, my other idea is to be able to display GPS indications on this display, for music with mp3Art on HU screen and gps directions on the dash display.
[MTCB Android Head Units Q&A] typos1:
Nope, I rarely use the internet on my unit and when I do I tether my phone, I have heard of this problem before though, it maybe connected to mine.
[MTCB Android Head Units Q&A] RaZi3L_:
maybe are you trying to do this http://xdaforums.com/showpost.php?p=53050718&postcount=2523 ??

http://xdaforums.com/showpost.php?p=52600203&postcount=2291
[MTCB Android Head Units Q&A] kalle99:
Bluetooth calling

Hi Guys!

I updated to Coudus newest rom(1024x600) and I noticed that I can not call from True Contacts anymore.

Latest Microntec headunit app also installed. It worked before with Malaysks rom and also on Coudus v1 rom.

Anyone else having this problem?

Cheers
[MTCB Android Head Units Q&A] pxrave:
hey dudes i saw v2.16 for other units

iam on kgl with newest android 4.4.4 800x display

my kgl mcu is 2.09 is there any newer mcu image for my unit?
[MTCB Android Head Units Q&A] agentdr8:
The idea is the same, although I had never seen an automotive relay with an integrated timer circuit before (we don't seem to get cool stuff like that in the US). Thanks for the links.
[MTCB Android Head Units Q&A] obekende:
Hi, I am also waiting for a new MCU from KGL to fix the led lights always on on 2.09 mcu, my unit Erisin ES9746A, I'm still at 1.86..

B, regards
[MTCB Android Head Units Q&A] pmbp:
Hi, in my unit ersin es9790 have a doubt.. do not know if that will be the quality of LCD or if I can do anything to change this. Problem (or not) is i not have black´s only grays, independent of the level of brightness. I think that has to do with the contrast level. Is there any way to change this setting or will I have to live with it?
[MTCB Android Head Units Q&A] koimr:
I think I managed to figure some of this out on my own.

1) I either haven't been waiting long enough for the service to start up or I have do "something" (not quite sure yet, generally after starting PowerAmp and/or Sygic the SWC starts to work as it should). I'll keep trying to determine what I need to do to trigger SWC to start working.

2) It seems SWC works afterward although PowerAmp Toast does not (have to restart the service).

Since the first post I've also gone to Malaysk's 4.4.4 KDL rom but I don't think that had to do with it. I'm also not using CarService but instead Microntek HeadUnit service.
[MTCB Android Head Units Q&A] koimr:
Oh wow! I will try this later today! Thank you. :)
[MTCB Android Head Units Q&A] Us-Marshal:
I've noticed that two things don't change when flashing new roms - the custom animation and my SWC control settings. I think this means that both of these are managed by the MCU. I say this because I don't think the rom matters, but you could see if there is an MCU update. Just a thought.
[MTCB Android Head Units Q&A] kilimats:
Hi,

I drive a 2007 VW Passat Wagon, i want to update my car stereo with an android, is there one out there that would do all this?

- Let me play my iphone 5s music library through the USB lightning cable with the album art picture shown on the screen

- charge my iphone though that same cable

- have a 1024x600 resolution

- let me install any playstore apps

thanks in advance ! i found a few so far but none that would play nicely with my phone through USB :(
[MTCB Android Head Units Q&A] koimr:
Yes, it definitely is. Hopefully XDA will give us our own forum soon.

In the meantime, I will try and find the Malaysk version of the install-recovery.sh script as I think I prefer this rom. I really do hope we get our own forum as searching this thread is tough for keywords like "install-recovery.sh".
[MTCB Android Head Units Q&A] nrjdgn:
distubed usb

Music on usb mount and un mount... music frozen

android 4.4.4 mcu 1.6 and 2.2
[MTCB Android Head Units Q&A] typos1:
Thats what I m getting, what firmware are you on ?
[MTCB Android Head Units Q&A] bmccrary:
I just got a HuiFei unit last weekend and want to thank you for making a red skin!! I don't know if this is possible, or a problem for anyone else, but the font size for the radio info is smaller than it should be on mine. It is not as big as it is in your image. The slider at the top and buttons are fine though. Could this be a difference in the 1024x600 screen vs the 800x480? If it had the font size larger and perhaps a little lighter/brighter shade of red so it can be read in sunlight it would be an awesome!!
[MTCB Android Head Units Q&A] chiefwigms:
wierd - i just got a KLD from pumpkin and i can't control the LED's

MTCB-KDL-V2.22 Jan 15 2015

S07
[MTCB Android Head Units Q&A] dcmtnbkr:
What's the cheapest place to buy right now? Doesnt have to be a US seller, but needs to ship to the US.
[MTCB Android Head Units Q&A] comptechltd:
Mine was a KD-C0223

Steve
[MTCB Android Head Units Q&A] Us-Marshal:
My S07 from Pumpkin has fixed blue LEDs.

http://www.autopumpkin.com/car-dvd-...h-screen-3g-wifi-bluetooth-obd2-free-mic.html

---------- Post added at 06:34 AM ---------- Previous post was at 06:31 AM ----------

Has anyone installed a lock screen (at start up)?

I'd like to prevent someone (repair shop/dealership, thief who steals my deck, etc.) from accessing my apps/data, but there is no option to enable security.
[MTCB Android Head Units Q&A] comptechltd:
Must not have been an option on that model. It does clearly state it on the page that it only has blue. I almost went with that model too. Just out of curiosity does yours have a fan in the back or is there a plastic blank covering the fan opening??

Here is mine http://www.autopumpkin.com/plug-and-play-strereo-pure-android-4-2-two-din-universal-car-dvd-player-gps-navigation-with-6-2-inch-radio-head-unit-support-remote-control-3g-wifi-odb2-dvr-button-light-color-adjust.html

Steve
[MTCB Android Head Units Q&A] Ken Ishiimoto:
Hi,

for the people who use BT OBD Adapters, here is another one with 100% compatibility to our HU:

scantool.net/obdlink-lx.html

It connects fast, stable (no disconnects) and works fine with Torque and Dashcommand. I have absolut no problems in my 2009 Ford Focus and it communicate correctly with the ECU of my car. After the purchase of 2 clones of elm327 (the blue plastik crap) in the Bay, both of which do not or only a couple of days worked either, i'm finally happy now :highfive:

My HU:

autopumpkin.com/car-dvd-players/ford-dvd-player/pure-android-4-2-car-dvd-player-7-inch-hd-capacitive-touch-screen-for-ford-focus-2007-2010-with-3g-wifi-obd2-dvr-free-4gb-sd-card-1080p.html

Updated to MTCB-JY-v2.16 with Coudus KLD 4.4.4v4.2 800x480 from 20150115 :good:

Greetings Ken
[MTCB Android Head Units Q&A] devilsoft:
Anybody knows why I cannot record with DailyRoads Voyager? I tried all possible combinations. Different resolutions and different encoders. The error message I always get is "Sorry, video recording could not be initialized. Please try with a different encoder, or Resolution."

The Car record app is working, but when it's recording it stops every 5-7 seconds for a sec.

Can anybody tell what is the issue ? I'm using the latest [MENTION=853627]coudu[/MENTION] KGL 4.4.4 (from january).
[MTCB Android Head Units Q&A] CARRisma:
Hello all,

Please excuse me, this is my first post here. I've been following this thread for a week or two so I'm slowly getting an understanding of what's what. I've recently replaced my KLD unit (Pumpkin KD-C0224) with a JY unit (Pumpkin JY-C0223, running MCU V2.16 with Android 4.4.4), simply because I prefer its design. It has no physical clicky buttons, the flush front panel has a column of 6 touch screen / soft buttons on the left hand side. I would link a picture, but I can't due to restrictions here.

The issue I have is that the touch screen / soft buttons on the left hand side only illuminate for a few seconds when powering up. After that, they are not illuminated. I'm suspecting that this could be resolved by connecting up the "Illumi" wire from the back? Am I right? But, what if my 2000 Honda Prelude 2.2VTi doesn't have an "Illumi" wire for this purpose? Is there a workaround?
[MTCB Android Head Units Q&A] delu77:
I suggest you to think twice about buying... I am not so satisfied...
[MTCB Android Head Units Q&A] pakidermo5000:
the cheapest place to buy is alibaba/ aliexpress. But buy from a seller with "reputation".

why are you insatisfied? I was a bit disappointed at the begining with KGL 4.2.2. because of some small issues. Fortunately, most things have been solved thanks to the contributions of people like agentdr8, coudu, dsa8310, ProfessorNox, dark alex, typos1, etc.

Specially since 4.4.4. v4.2 I am very happy. Everything works as expected, besides the bloody CANBUS decoder, which sucks and is not 2-way since I do not own a VW. Nevertheless, the info I get in the dashboard from the HU is not important as it only refers to the Radio station.

PS: KLDs only have one LED color.
[MTCB Android Head Units Q&A] the-fabio:
Im back in 4.2.2 and want to start the app "blitzer.de Plus" into the install-recovery.sh. Only this application, not more.

How could I realise that. Sorry, but I don't feel save to program that by my own.

[MENTION=6041319]dsa8310[/MENTION]: "mobile settings" are still working. Yesterday the 3g was getting lost, but it came back on his own. Seems like the problem is solved.

I've somebody want to have a clean taskkbar, I turned off all notifications (without 3G and clock) with the xposed module X-Blast.
[MTCB Android Head Units Q&A] TooBusy:
See if my post #8213 is of any help.
[MTCB Android Head Units Q&A] delu77:
I know it should be only a part of the entire system, but for me is important.

Radio reception is bad, very bad, and AF does not work. I think they don't know what does it means, in Italy we use FM modulation due to our morphological problem, and radio stations does not change. And it keeps in memory by FM frequency, not by name, so I have 2 or more buttons to store my favourite radio station....
[MTCB Android Head Units Q&A] devilsoft:
Hi [MENTION=6304154]TooBusy[/MENTION]!

My HU is a KGL4 800x480 (not 1024x600). I tried yesterday all the firmwares (4.4.2, 4.4.4 december and january, coudu and malaysk roms), and I get the exact same issue. DailyRoads (or any other app besides Car Record basically), cannot record video comming from Front Camera.
[MTCB Android Head Units Q&A] typos1:
Pretty sure ptclabs did it at some point (use thread search) but cant remember if it was successful.

---------- Post added at 01:03 PM ---------- Previous post was at 01:02 PM ----------

Sounds like a voltage problem with the rear USB ports, some people get this with 3G dongles and I m getting it was a flash drive.

---------- Post added at 01:05 PM ---------- Previous post was at 01:03 PM ----------

Yes you are, I ve jsut bought one of those JY units as well and connecting the illumination wire lights the buttons permanently.

Generally cars have an illumination wire unless they have CAN Bus, in which case your ll need a CAN Bus adapter. If it doesnt the alternative is to simply put the illumination wire on an ignition switched live, or attach it to the ACC wire.

---------- Post added at 01:06 PM ---------- Previous post was at 01:05 PM ----------

Thats what I thought, but apparently some KLDs do have RGB LEDs.

---------- Post added at 01:09 PM ---------- Previous post was at 01:06 PM ----------

Some one else in Italy has reported the same problem, AF DOES work but there are 2 or 3 different ways of implementing it and the way the IC does it does not work that well in Italy, use thread search to find out more, it was in January that it was discussed, cant remember the name of the person who bought it up, but he was in Italy.
[MTCB Android Head Units Q&A] devilsoft:
The voltage issues cause the apps to have problems with initializing the video recording ?

How can I fix such a voltage issue ? Is there some hardware I can buy to fix that ?

Thanks!
[MTCB Android Head Units Q&A] delu77:
I know, I have contacted him by mail but the problem remains...
[MTCB Android Head Units Q&A] TooBusy:
My HU is KDL, but I don't think it makes any difference. It's also 800x480 and coudu's 4.4.4. The recording on 4.2.2 was completely useless.

For me, DailyRoads Voyager was only working when I set the video recording resoultion to 640x480. Your error message indicates the same, so make sure this is correctly set. There is also a setting for resolution of still images. Maybe you changed that, but not video resolution. Just, double check.

I'm not using Car DVR feature any more. Video quality is too poor at this low resolution for my liking. Maybe someone finds a way to record at higher resolution, but I don't think it's possible with current units.
[MTCB Android Head Units Q&A] typos1:
I can understand your frustration but it seems to be unique to Italy.

You could get an external tuner or email your manufacturer and ask if they can sort it out, or decompile the apk and try to implement the other method of AF that the radio IC is capable of.

---------- Post added at 01:21 PM ---------- Previous post was at 01:17 PM ----------

I dont know, but it seems possible.
[MTCB Android Head Units Q&A] devilsoft:
I already set all the parameters with different values, but the result is the same. The quality of the video is ok, in my opinion...i don't need better quality. I forgot to mention, than I use the usb camera special for this units: http://www.aliexpress.com/item/USB-Port-DVR-Camera-For-Android-4-2-2-Car-DVD/2053660679.html
[MTCB Android Head Units Q&A] delu77:
I have tried... they offer me to check my radio, but I have to pay 45€ to send him....and next I will have to pay again customs taxes for the fixed unit...

I think I will keep it, until someone discover how to fix it. I am not so good to decompile and rewrite the apk... :(

But... Only Italy has this mess with radio tuner?

---------- Post added at 02:28 PM ---------- Previous post was at 02:26 PM ----------

Does someone knows if it is possible to add the phone signal strenght on the bluetooth app like all the other BT systems do?
[MTCB Android Head Units Q&A] patagonia1:
looks interesting, how about night quality? is it possible for you to post a screenshot of the recordings?

thanks and regards
[MTCB Android Head Units Q&A] TooBusy:
I used Microsoft LifeCam HD-3000 with similar specs. If you have another cam it's worth trying.

---------- Post added at 12:40 AM ---------- Previous post was at 12:37 AM ----------

Such as...
[MTCB Android Head Units Q&A] delu77:
I have bought from Eonon...
[MTCB Android Head Units Q&A] devilsoft:
Unfortunetly, I don't have other camera to test. I might try to stick the camera in front instead, to see how it acts.

P.S.

Another seller with good reputation, is Witson (www.witson.com)
[MTCB Android Head Units Q&A] CARRisma:
Excellent, thank you very much.

I was considering connecting the illumination wire to the back of the cigarette lighter? Is this a good idea? Or is there too much current which will cause it to explode (I am really stupid where electrics are concerned)?
[MTCB Android Head Units Q&A] Us-Marshal:
Hey Steve - no fan. I thought there was from the pics, but it's just a blank cover.

Re: the LEDs I went in knowing it was only blue (per the product details), but I'm kind of bummed if there is a version of my same unit with RGB that I missed. Overall, I really like the deck and elected the unit I did because of the 6.95" screen - RGB LEDs would be a nice bonus.
[MTCB Android Head Units Q&A] TooBusy:
I was thinking of a slightly different approach. It would be good to know what the default values are, for troubleshooting. While username and password are most likely blank, and phone number probably *99#, it's not clear what the authentication type is (none, PAP, CHAP) and APN name (possibly "internet").

If these default values are the same as provider's settings, then the dongle should work without any modification (either call-pppd file or another app). If it doesn't work, then the problem is something else, possibly incompatible dongle, for example.

If provider's settings are different from the default values, the dongle is not expected to work without modifying call-pppd file (or using another app).

All I can see from call-pppd script is that it uses variables, not defined, but passed to it as parameters. My knowledge stops there. Where do these parameters come from and what are their values? Can you find out somehow?

So, when you create and save a profile, it is displayed in the list? Can you create more than one profile, and then choose which one you want to use?

I think it would be helpful to get the following information from people who have 3g working (not only you):

1. which dongle

2. do you use modified script or an app (which one)

3. provider settings