yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] reklamos:
Sorry cannot post proper links as do not have enough post :) remove the spaces

https ://avinusa.com/vw-8-avant2-nb-full-android-multimedia-navigation-system.html
[MTCB Android Head Units Q&A] peti007:
Looks like CA-FI DASHLINQ4 radios. Not what about in this thread.
[MTCB Android Head Units Q&A] :
Is it worth upgrading from 4.2.2 to 4.4.2 if I'll lose root access? Any tangible benefits of making the upgrade? JY system...
[MTCB Android Head Units Q&A] hypetaxx:
I have for some time been looking at getting a android HU for my car.

Now I decided to do it and therefore I started looking around for a model for my car Ford Mondeo 2008 and I stumbled on this quad core 1024*600, but I want to make sure it is in family with the models discussed in this thread.

Its an Ownice OL-7202

I found it here.

http://shenzhenwinlink.manufacturer...1107489052/Car-DVD-Player-for-Ford-Mondeo.htm

Can anyone help me out?

Clarifying:

- It's in the family

- I can use ROM's discussed in this thread

- Whether Globalsources.com is reliable to do business with

Thanks
[MTCB Android Head Units Q&A] Sinner75:
No Sound after Firmware Upgrade and Downgrade

Hello to everyone,

I´ve got one of those HuiFeis sold bei Pumpkin. Aftter having found an update to 4.4. I decide to make this upgrade. But I didn´t liked it that much so I made a downgrade using a firmware from here with -at least in my oppinion- the same stats. Right now I gave the unit away but the new owner says there is no sound at all. Has anyone a solution? Sound worked well before. But I don´t know exactly if I have tested before or after Up- and Downgrade.

Thanks for your help.

Cheers

Sinner

By the way. Has anyone got an idea how to setup the resolution of the screen or the size of letters to have a better use of the small screen?
[MTCB Android Head Units Q&A] agentdr8:
Why not just use a pre-rooted 4.4.2/4.4.4 image?

I prefer the KK images over the JB ones, even if there are some issues here and there.
[MTCB Android Head Units Q&A] FrenchSparda:
I sent them a mail, and like you said, no RGB led, only blue colors. but you can choose the color you want before ordering it ;)
[MTCB Android Head Units Q&A] peti007:
Delay relay

If I buy this relay delay my head unit can keeps alive while cranking the engine with newer MCUs?

http://www.ebay.com/itm/DC-12V-dela...154?pt=LH_DefaultDomain_0&hash=item3a9c1565b2

Edit: I think it won't work because it doesn't have the static 12V (battery).
[MTCB Android Head Units Q&A] agentdr8:
It should work just fine if you use the 12V constant (usually yellow wire), which powers the timer circuit, which controls the relay, which would provide your delayed ACC line (usually red wire).
[MTCB Android Head Units Q&A] typos1:
Some of the bass goes to my sub and some to the speakers, I m happy with this, the sub accentuates the bass - I just get good sound quality, I m not particularly aware of the sub, I dont feel it all the time, but some people want the sub to be much louder, for it to dominate the sound and be really thumping all the time, which it isnt. I guess this is where personal taste comes in . . .

---------- Post added at 11:40 PM ---------- Previous post was at 11:37 PM ----------

The RCA outputs bypass the internal amp they are for an external amp.
[MTCB Android Head Units Q&A] peti007:
In DC mode there is just one +12V and one GND input and one +12V output. So I can use the 12V BAT or the 12V ACC line, not both at same time. Or should I use the AC mode?
[MTCB Android Head Units Q&A] typos1:
You wont loose root access if you download a pre-rooted 4.4.2 or 4.4.4 image form the repository.

---------- Post added at 11:45 PM ---------- Previous post was at 11:42 PM ----------

No, its ot related to these units, the OIwnice units use the RK3188 quad core chip not sure what MCU they use. The 3188 is the logical progression from the 3066 these units use and I m guessing that at some point the manufacturers of these units will upgrade to 3188 based units - its relativaly simple to upgrade the tablet part and keep everything else the same, but they havent as yet.
[MTCB Android Head Units Q&A] peti007:
Yes I know, but if the I2C controlled mod can improve sound quality with built in amplifier, then not the internal amplifier should be the cause of weak sound quality. At least not just alone.
[MTCB Android Head Units Q&A] RyanBRZ:
I have considered that as well, the music is not overwhelmed with bass and it sounds a bit more balanced. But, I'm still bit a fan, I'd rather have the ability to have overwhelming bass and tune it to where I want it with my remote gain control. Some songs are lacking and there's nothing that can be done about it. I'm going to try the rear/front RCA out instead of the single sub RCA and see if it improves. I also get distortion at around 25 , not sure if this means my speakers are weak or the signal is crap, or both.
[MTCB Android Head Units Q&A] agentdr8:
I believe the input voltage just controls the relay; whatever you connect to the common will get switched to the NO pole for the specified amount of delay time.

I've ordered one just to play around with. Will report back if it works how I envision it working.
[MTCB Android Head Units Q&A] luge67:
Mic issue

Hey there,

I have a similar unit (Erisin 9603 - has the same specs at least) with mic issues when on handsfree, are you able to post images on your procedure and i can see if it's going to work on my unit.

Cheers,

Lui
[MTCB Android Head Units Q&A] ultradj83:
Well, changing Keymap or Touchm... (I don't know what this is) ha no effect.

The back button does the following:

At 1st press it opens GPS navigator

At 2nd press it seems to switch to other open stock apps.

As example, if I have the radio app open, then I open browser, on 1st press it opens GPS, on 2nd it switches to radio, on 3rd backs to GPS and so on...

Do you know how to make it act as normal back button?

Thanks!
[MTCB Android Head Units Q&A] Petrows:
Thank you for test! Uplodaed new version 1.18 yesterday on Goolge play, added fix for media keys. Check it out! Link to app: play.google.com/store/apps/details?id=com.petrows.mtcservice

About auto-brightness - what do you exactly need to do? Just +/- brightness on some day time?
[MTCB Android Head Units Q&A] luge67:
Thanks....lets see how we go

Cheers,

Lui
[MTCB Android Head Units Q&A] hypetaxx:
Thanks, so for now my best bet to have a unit with community support, would be to chose one with rk 3066 like this one http://m.aliexpress.com/item/32246848240.html

Or maybe this one with higher resolution screen http://m.ebay.com/itm?itemId=251752743916
[MTCB Android Head Units Q&A] peti007:
The seller answered me: It won't work.
[MTCB Android Head Units Q&A] typos1:
Well, if it was me and I didnt have one already, I d get the Ownice one.
[MTCB Android Head Units Q&A] liquidini:
I have freezed stock music app and installed Poweramp and spotify.

From XposedMTC i choose as default music player Spotify.

But when I use SWC to change track then CarService sent button presses to poweramp and not Spotify.

Even when I have spotify playing and press next song , then poweramp starts to play together with spotify.

Is this a bug or normal behavior?

Is it possible for CarService to "discover" which player(poweramp or spotify) is playing song and so to sent keypresses there?

thanks againa
[MTCB Android Head Units Q&A] dark alex:
carservice sends out an intent which every app could react to. the app decides if it wants to react or not.

Probebly you did not stop poweramp completely? You have to stop it using the menu oder the notification's "X"-Button
[MTCB Android Head Units Q&A] ultradj83:
And phone service?
[MTCB Android Head Units Q&A] antfros:
Amazing, media keys work perfect now. Thanks!!

yes, high brightness for the day and low at night.
[MTCB Android Head Units Q&A] fedmond31:
New to the game

Hi ,

Just bought a JY for my Toyota from Aliexpress/ Mekede seller , it was shipped quite fast, I was amazed how plug and play it was to fit in the car, specific size and all wiring were perfect , just had to buy an antenna adaptor.

It came as a JY S07 V2.11 so I did not bother to change MCU, I upgrade the 4.2.2 stock, immediately with Coudu Kitkat 4.4.2 (initial upgrade failed ! and unit was stuck, I could not turn it off, I had to unplug car battery!) but second time succeed !

After reading many pages on the topic and playing a little bit I am quite happy as everything seems to work:

Radio, RDS settings etc no problem, sound quite good, Bluetooth Handsfree OK, get all my address book in a very short time, internal mic satisfactory (my wife hasn’t complain yet) Wifi again no problem, connects to my office and 4G through phone hotspot (no drops)

Play.Google is Ok. IGO 9.6.7 for navigation.

The only trouble with IGO is sound: when I use normal voices, it mutes the radio on announcements and back again after, which is OK, but with TTS voices, it does not mute the radio at announcements or alarms they are obviously on same channel ??

Also I have find out that the navigation sound is only directed to the front speakers not at all to the rears ? (As the Toyota fronts are very small they are less effective than the rears, I had to put the fader almost 80% front to hear navigation correctly)

I wonder if there is a way to redirect navigation sound through all speakers ?

Also worth noting, that immediately after my unit was shipped, Joyous JY launched newer units with 4.4.2 stock and external microphone plug (but that’s life !)

Many thanks to the forum so I could achieve this almost trouble free investment !!
[MTCB Android Head Units Q&A] :
Running 4.4.4 mod from the repository now, working great, plus a huge jump in audio quality. Two remaining issues though, which I can find no info in this thread.

1. I can't change the DPI with any apps. It's stuck at a massive 240, but I would like to change. Any advice?

2. The media buttons (play pause next previous) do nothing now I have change my media player. Is there a way to correct this? I have xposed framework and the MTC tool, but that doesn't do it

Very happy with my purchase, all thanks to the above and guides on this forum!
[MTCB Android Head Units Q&A] agentdr8:
Try App Settings from the xposed repo. You can change individual app resolutions.

I haven't gotten around to building an interface to remap the hard buttons. It's on my list of things to do.
[MTCB Android Head Units Q&A] jkchr1s:
Just Purchased

Hey everyone,

I've been following this thread for a while now, and finally bit the bullet and bought one of the units. I was originally looking at "Insane Jeep Audio JK1001" but it retailed for $999. I started searching on Alibaba, eBay, and Amazon and found that they are simply jacking the price up on what looks like a HuiFei unit (then I found this thread). I ended up buying from Amazon for fear of getting screwed buying a DOA unit. I bought from the seller, "NewerStone" and the item was named "For Jeep Wrangler 2007-2012/Ourney 2008-2011/Jeep Sebring 2007-2012/300C 2008-2010/Grand Cherokee 2008-2012/Compass 2009-2012/Caliber 2009-2012 Android 4.2.2 Dual Core system multi-Touch Screen Car DVD GPS Navigation Build-In Bluetooth,Radio with RDS,Analog TV, AUX&USB, iPhone/iPod Controls, Steering Wheel Control, Free Map" on the US amazon.com site. It looked identical to the insanejeepaudio version, so I figured I could always flash their firmware if I ever bricked the unit (this should work, right?).

Anyways, I found some interesting stuff on the Insane Jeep Audio forums (can't link yet, but insanejeepaudio dot com). They have a section for JK1001 Software Updates, a link to a PDF file, then the PDF links you to another page: insanejeepaudio . com/JK1001_UPDATES/ that has some files in it, one is dated Dec 29.

Also, the "Insane Jeep Audio" version is found on this site: 4wheelparts .com/Interior-Parts-Accessories/In-dash-Navigation-and-Multimedia-Entertainment-System.aspx?t_c=9&t_s=500&t_pt=101302&t_pn=I%2FEJK1001

The back and cables of the "Insane Jeep Audio" .insanejeepaudio. com/forum/viewtopic.php?f=5&t=6

Has anyone ever looked at these firmware files? They apparently have some CANBUS fixes and audio related fixes. You can look around in their forums to see people talking about it. Maybe this firmware has some changes in it that can help the community? :)

Can't wait to get my unit and start playing! At work right now, but could anyone take a look at those firmware images to see if there's anything new we can use? And can anyone confirm that the JK1001 is nothing more than a re-branded HuiFei unit?
[MTCB Android Head Units Q&A] agentdr8:
Yep, looks like a rebranded KGL/HF. I think the About screen would show us the exact MCU variant.

I've grabbed their latest 1.2b image with the BT fix to see if anything stands out differently from the other KK 4.4.4 images.

EDIT: Nevermind. Their 1.2b image is still JB 4.2.2
[MTCB Android Head Units Q&A] jkchr1s:
Awesome, thanks! Hopefully we can find something useful in there. I plan to dig in to it later myself, but don't have anything to test with yet...
[MTCB Android Head Units Q&A] ffwd4490:
Quick question about my Klyde unit. the night illumination on the unit pulses if my vans dimmer slider is not set to full brightness. ( All the way full, just before clicking the interior lights on). Has anyone else encountered this? Could this be caused by the ground wire from set of power wires including the illumination, reverse cam etc not being connected?
[MTCB Android Head Units Q&A] bhitman:
Which media player do you use? It isn't lokking like poweramp. Or is it a pa skin?
[MTCB Android Head Units Q&A] agentdr8:
If the dimmer switch reduces the voltage on the illumination line below ~12V, then it will cause LEDs to flicker or turn off.

You could wire the illumination line to an alternate switched 12V source when your running/head lights are on, and that would effectively bypass the issue.
[MTCB Android Head Units Q&A] :
GMMP

---------- Post added at 12:46 AM ---------- Previous post was at 12:45 AM ----------

Thanks, I'll try your suggestion
[MTCB Android Head Units Q&A] KeiserSozeyFr:
I found a way to choose to which application sending the media actions !

I made a little modification to enable Spotify control by SWC

Sorry, there is no "automatic detection". You have to choose which player to use.

Download new Version 2.1.1 and enable parameter "Spotify control"

Find it here :

http://xdaforums.com/showpost.php?p=53678587&postcount=1179

---------- Post added at 02:29 AM ---------- Previous post was at 02:24 AM ----------

New version of CarService and PhoneRemoteStatus

CarService now support Spotify ! but you have to choose if you want to control spotify or default music player

Now, signal strength is displayed on notification bar in addition to battery level (using PhoneRemoteStatus on your phone)

Some small modifications on PhoneRemoteStatus including a bug fix

Don't forget to donate if you like my apps !
[MTCB Android Head Units Q&A] RyanBRZ:
Does anyone know if it's possible to get my USB 3G dongle to work that I got from Freedompop? Its a Sierra Wireless 250u USB device that runs on Sprints network. I also have a wifi device which works but it will get annoying to have to power it on when I want it and keep it charged while it stays in my car. Any help is appreciated.
[MTCB Android Head Units Q&A] comptechltd:
Hi all,

I have got my Pumpkin KD-C0223 (KLYDE) all set up and configured pretty decent after playing with it for several days. I installed Cuodo's 444 V4.2 with root and installed poweramp, xposed, car service, mtc service etc. For the most part it is working well. I have 2 MAJOR issues that I'm not sure how to fix.

1) When I get in the vehicle and start it up my phone pairs automatically. If someone calls me it will ring through the radio like it should. The problem is until someone calls no other sounds will come from the phone through the radio until I press the bluetooth app on the radio. Once it is activated I will hear text messages and other sounds through the radio. Once it is open if I hit the house looking 'HOME' key and put it to the background I still hear the sounds through the radio as I should. If I hit the back arrow or return key its like it kills the bluetooth and I get no other audible notifications. It is like the bluetooth process is killed for all audio except when a phone call is received. I need some way to keep bluetooth alive but in the background automatically.

2) I have an external mic in addition to the internal one came factory that way. I have read about the wiring issues with these mic's especially with the dual mic's but I don't think that is the problem. My sound quality is not that bad through it. My issue is the person I am talking to hears a TERRIBLE echo of themselves with about a 1/2 second delay, so bad that they almost can't talk. I have adjusted the volume, disconnected the external mic, re-positioned the mic.......danged near everything I can think of but it still is an issue. I know there is no echo cancelling on these cheap units but is there ANYTHING I can do to get rid of this??? It would actually be a decent sounding unit without the echo. Maybe a special microphone?? Some type of a choke or filter??

I have read through the majority of this thread and I haven't seen anything dealing with either one of these issues.

Thanks for your help.
[MTCB Android Head Units Q&A] agentdr8:
There appears to be some level of support for the 250U in the usb_modeswitch supported products list (vendor ID 0x198f, product ID 0x0220), so chances are it might work with these headunits.

As for the mifi, they usually charge via mini or microUSB, and some of them will power on when they detect voltage on that port. You could try plugging in a usb cig lighter adapter in the glovebox and see if it turns on when the car is on.
[MTCB Android Head Units Q&A] agentdr8:
I think it will. It has a 100uF 16V capacitor on it, which should drain over time (based on the potentiometer and jumper settings) and provide the needed 12V to keep the relay closed.

Instead of wiring it based on their 2 examples, I would wire it like so:
[MTCB Android Head Units Q&A] xrapidx:
Guys with 3G issues, I've noticed I have virtually none with just the usb dongle plugged in on the flash side.

Coudas latest 4.4.4)
[MTCB Android Head Units Q&A] typos1:
I ve installed coudu's latest ROM, but whenever I hit the "apps" button I get the message "sorry launcher has stopped".
[MTCB Android Head Units Q&A] peti007:
I hope it will work.
[MTCB Android Head Units Q&A] elcolombia17:
hi dear

here seem to be a way to overclock rk3066 kernel, can somebody take a look, my english is very poor. thanks in advance

http://www.freaktab.com/showthread.php?7789-rkpatchomatic-tool-overclock-binary-rk3066-kernels

http://xdaforums.com/showthread.php?t=2257331

---------- Post added at 02:16 PM ---------- Previous post was at 02:11 PM ----------

and more info, there are some developers working on a WINE version compatible with android, take a look

http://xdaforums.com/showthread.php?t=1258506
[MTCB Android Head Units Q&A] SteelH:
4G? How did you do that?
[MTCB Android Head Units Q&A] mbarijfh:
SWC without using key1 / key2 possible ?

Hello,

I just bought mid of december a KGL-7509 unit for a Benz W220, incl. CAN-BUS adapter. However, the SWC don't work. The Can-Bus adapater as such works, e.g. ignition and reverse signals are "translated" correctly by the can-bus adapter.

if I understand correctly, there are two basic ways to get SWC working, either by the key1 / key2 cables; if your car has a resistive SWC or your can-bus adapter "reads" out the SWC commands and "translates" it into resistances for key1 or key2 cables, however this is not the case for my can-bus adaper, key1 and key2 cables of the HU are simply not connected to the can-bus adapter.

The other way discussed in the forum -if I got it correctly- is that the HU reads out the SWC command directly out from the Can-bus in or the other way, without using key1 or key2 cables. Can someone confirm that this is working, has someone working SWC without using key1 / key2 cables, neither directly nor connected to the can-bus adapter ? Is there any way, that SWC can work without using the key1 or key2 cables ?

My basic problem in understanding the 2nd way is the following one: if the HU would capable of reading and interpreting can-bus directly, why would you need a can-bus adapter anyway ?

Thanks for clarification,

Michael
[MTCB Android Head Units Q&A] antfros:
Amazing, media keys work perfect now. Thanks!!

yes, high brightness for the day and low at night.

Also could you add support for controls on spotify in your service app, the last version of servicecar 2.1.1 in first post work with spotify.
[MTCB Android Head Units Q&A] mbarijfh:
Hello,

related to my previos post; Can the not-working SWC be a MCU issue ? I have installed the MTCB-KGL1-V2.06 MCU, I read somewhere the V2.09 has fixed some canbus issues, may that be the solution ?

No one can say just try it out; however reading the forum it is highly advised to do a backup first; for the backup apps you need root access, and -if I correctly understood- for Kitkat, there is presently no way to root the HU, correct ?

So how to do a safe MCU update with backup first if you have a HU runnung KitKat ?

Thanks,

Michael
[MTCB Android Head Units Q&A] MasterPrenium:
Hello guys,

I uploaded the latest official release from KGL. Here is a link (Release from 2014/12/10). https://drive.google.com/file/d/0B8FCHUCxZ3-8bnVDT0NxUlhzT1k/view?usp=sharing

[MENTION=853627]coudu[/MENTION] if you want to play ;), now it's the correct one.

Still untested, didn't had time today, but wanted to share it ;).
[MTCB Android Head Units Q&A] mbarijfh:
mic level low on KitKat

Hello,

another "problem" with my unit are the very low mic levels. I read how to seperate the two mics, however I'm still a bit reluctant to do this kind of "big" operation on a new equipment, and I am not sure wether this solves my problem. - I'm not talking about noises, but about the microphone gain as such.

For instance, if I switch on poweramp and try to recorde it via the voice recorder, you can hardly hear anything on playing back the record, the mic gain ist just too low - If found in the forum that one can adjust the mic gain using the microphone app from playstore, but how does that work ? - in the microphone app, I can adjust the gain, but it has no effect on other apps such as voice recorder. Moreover, it was written somewhere, that for KitKat that would not be needed any longer. - Why ? - Can you adjust the mic gain in KitKat somewhere ?

Thank you,

Michael
[MTCB Android Head Units Q&A] mbarijfh:
okay, thanks, I try to get the mic socket in the next days and try it out...
[MTCB Android Head Units Q&A] fedmond31:
TTS sound

Hello,

My JY with coudu KK 4.4.2 works quite well , a minor problem remains with GPS and TTS Voices (IGO)

When Radio is Off, TTS voices are perfect, when Radio is On, they become much lower, almost inaudible.

This is the same when i test sample TTS from system menu alone, so i guess TTS use system audio as radio ?

There is a switch on system parameters for GPS: commute or Mix with a volume setup for mixing, this switch doesnt work with TTS sound, it is always mixed.

With non TTS it commutes and mixes OK with volume settings working.

I have reduced Radio to minimum setting in Factory menu this improved definitly the balance between Radio and TTS but still not enough.

Has anybody any clue on how to overcome problem ?

many thanks
[MTCB Android Head Units Q&A] zaphod2:
I use for SVOX Classic. so you can increase the volume level again.
[MTCB Android Head Units Q&A] Petrows:
Thank you for the test and report.

About brightness - Exposed MTC could do this, did you tested it. By teh way i can make this feature, but in some future releases, also need to think about the algo. Sunrise are different in difefrent countries and day of year, there should be some complex algorythm.

About controls - cant understand you clearly, what app do you mean? If it uses some non-standtard events it is a not a problem to raise them.