yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] horn34:
Does anyone else have one of the 4.4 "no button" units? This is the closest to what I'm looking for. The seller has an option to upgrade the 800 x 480 screen to a 1024 x 600 screen for an extra $20. Go for it or no? Does it make a difference?

http://www.aliexpress.com/item/Free...-for-2DIN-universal-car-with/32260872574.html
[MTCB Android Head Units Q&A] peti007:
I have a 800x480 KLD unit. It's OK for car head unit, but if the 1024x600 screen has higher brightness, then go for it!
[MTCB Android Head Units Q&A] horn34:
Thats the problem, I don't know anything about the 1024 x 600 screen besides it costs $20 to upgrade. Hopefully someone here opted for a screen upgrade on theirs and can speak to its worthiness.
[MTCB Android Head Units Q&A] RyanBRZ:
For $20, why not. It will provide a clearer picture?
[MTCB Android Head Units Q&A] MasterPrenium:
And BIG THANKS to [MENTION=853627]coudu[/MENTION] who is making nice FW ;). Gonna try your release soon.

It's what I discovered too. It depends on the text editor you gonna use, because of the chinese characters that are on the beginning of the file, it seems you can make an encoding error.

To avoid this issue, you can directly use 'sed' software (yes you need to know how it works)
[MTCB Android Head Units Q&A] Karanso:
You can change manuelly 800x480 to 1024x600, no Problem.

DPI 215

Test it, works fine for me.

Resolution Changer from market
[MTCB Android Head Units Q&A] zorantoma:
The 1024 screen makes a difrence :)

---------- Post added at 08:28 PM ---------- Previous post was at 08:27 PM ----------

I managed to change the dpi to 240 and i got the tablet look back. No problem :)
[MTCB Android Head Units Q&A] KeiserSozeyFr:
I added intents to start/stop the services, see here :

http://xdaforums.com/showpost.php?p=53678587&postcount=1179
[MTCB Android Head Units Q&A] coudu:
You're right, I just checked and the new KGL 1024x600 release is originally set at 240 DPI whereas the previous ones were set at 300 dpi. I changed the 1024x600 KGL build to 300 by mistake because I based it on the 800x640 I did just before.

I can release a fixed version at 240 dpi, would you guys with 1024x600 screens also have the KLD build set at 240 dpi?
[MTCB Android Head Units Q&A] zorantoma:
Yes please. I set mine on your KLD 4.2 versionversion. Tomorow i will flash the KGL versio that i can see which one suits me best :)

By the way,your rom rocks :)
[MTCB Android Head Units Q&A] RyanBRZ:
Is there a way to force all apps to be 100% viewable? Some apps I use get cut off on the bottom and I can not get to hidden buttons or text making the app useless.

What would happen if a 1024x600 ROM was tried on a 800x640 screen?
[MTCB Android Head Units Q&A] typos1:
Yes, theres an exposed module for changing the DPI on a per app basis, its been mentioned several times in this thread, check on the first page if theres no mention, use the thread search function.

The 1024x600 res and it cuts off the bottom and right side of the screen cos its the wrong res for an 800x480 screen.
[MTCB Android Head Units Q&A] RyanBRZ:
I've tried Xposed App Settings module and it does not work for me. The default DPI is always 0 on every app, and changing the resolution on apps doesn't do anything.
[MTCB Android Head Units Q&A] typos1:
Myabe youre doing something wrong ? Have you searched the thread for info on it ? There may be some things you have to do to make it work.
[MTCB Android Head Units Q&A] Ascona20:
8Gb - 4Gb

Can anyone help me with this issue ? Have 8Gb of ROM, now after update to 4.4.2 have only 4Gb...

How to resolve this issue ?

Thanks ;)
[MTCB Android Head Units Q&A] Petrows:
Can you provide me a link to app? In search page "Spotify" there are plenty of apps. I will download and test the exact app.

---------- Post added at 01:03 AM ---------- Previous post was at 12:56 AM ----------

Thank you for the bug report. Can you send me bug-report via google play services? In this way i will fix it in a moment. If you cant send me crash report, can you record the logcat logs from the device? I will be glad you for help.

P.s. bug did not reported by anyone else.
[MTCB Android Head Units Q&A] Petrows:
If you have some noisy presses of button in a SW, why you just set-off none key on SWC settings page? Just set none function of problem key event and problem goes avay, doesnt it?
[MTCB Android Head Units Q&A] jkchr1s:
Won't power up

Hey everyone,

I just received my head unit today. It is the one listed on Amazon (amazon .com/gp/product/B00Q4F2DWS/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1) and I'm installing it in a 2014 Jeep Wrangler. It's not the same as pictured, the buttons have a different layout.

The CAN bus adapter has the part number KLD (CHRYSLER-SS-01) 20141030. It also says for COMPASS (which I assume is Jeep Compass).

When I connect my battery, I hear about a 1 second beep. Beyond that, the HU does absolutely nothing. I tried holding reset for a few seconds, I hear the beep again, but nothing else. I tried holding power for several seconds after turning the key on, but still nothing. It acts like it is not receiving the power notification from the key.

My understanding is that Jeep/Dodge/Chrysler/Ram have 2 different types of CAN bus. People refer to them as "high speed" and "low speed" and the two are not interchangeable. The listing on Amazon says that it works with vehicles of both type, so I figured it changed between the two intelligently.

The CAN bus controller shares the yellow (power) wire, and the only other two wires coming from the original adapter are a light green and dark green wire. I cannot figure out what these two are, but I'm assuming they are the CAN bus.

Does anyone have any suggestion as to how to further troubleshoot this? Would it be easier to just get a CAN bus controller from a local store than try to return it, or is the head unit dead?
[MTCB Android Head Units Q&A] MasterPrenium:
So you're not using the build.prop from the official FW ? I think they did some changes to it.
[MTCB Android Head Units Q&A] RyanBRZ:
That beep is normal and good, it means constant 12v and ground are connected, but maybe it's not getting the ignition wire?

There is no red\ignition wire? Does install diagram show which wire is for ignition+?
[MTCB Android Head Units Q&A] jkchr1s:
Yes, I have ground and yellow constant. It's a factory plug and play harness. The red ignition comes from the CAN bus because my car doesn't have a wire for the switch, the head unit is powered on by the CAN bus.

I can't post links or pictures yet but I uploaded them to imgur.com.

imgur .com/a/nXsN9 (copy and paste, then remove the space)

---------- Post added at 05:46 PM ---------- Previous post was at 05:41 PM ----------

The black ground wire does not connect to the CANBUS adapter though... it goes straight in to the back of the head unit. I don't know how to wire the ground in to the CANBUS (if it even needs it)
[MTCB Android Head Units Q&A] typos1:
Yes - coudu's ROM (as he says in his post) is modifed to have 3Gb for data, not the 1Gb that is standard, leaving only 4Gb for storage, this is because some people want more space for apps. Personally I think 2Gb is enough for apps. You could pm him and ask if he can do a 1 or 2Gb version.
[MTCB Android Head Units Q&A] jkchr1s:
OK, I hooked it up on the table (just wired black ground, red acc, and yellow constant and it came on. Is there a CAN bus setting I can change in settings to try it again?

MCU is MTCB-KLD-V2.20

OK -- found factory setting, it is set to JEEP&MMR(Hiworld). I'll try changing these around to see if I get any different results.
[MTCB Android Head Units Q&A] coudu:
Yes I do but I thought I changed it to 240 when doing a 800x640 build for my device but in fact it was already 240 dpi in the original 1024x600 :silly:

I've just uploaded KGL and KLD v4.2.1 in the repo for 1024x600 device with dpi set to 240 and correct GmsCore for 240 dpi.
[MTCB Android Head Units Q&A] nuvo84:
Hello everybody and happy new year!

Firstly, thank you and congrats for all the work on these units.

I have a kgl7683g unit on my audi a3 and by mistake I made a small cracking at the down-right side of the screen. Is there any link for finding a replacing digitizer? I am getting false touch after the crack. Or any advise I could follow? ( except for being careful with the screen, I realized that..hehe [emoji14])

Many thanks in advance.
[MTCB Android Head Units Q&A] dcmouser:
Hotrod Panel - silly android app toy for android car head units

I'm almost embarassed to post this, but i've been having a little fun with android coding lately and decided to code a small app for creating "fake" panels of controls to let you have a little pretend fun while in your car. Create some controls for afterburners, turbo power, rocket engines, etc. You can add your own controls and define your own sections:

[IMG="screenshot1"]http://www.donationcoder.com/forum/index.php?action=dlattach;topic=39626.0;attach=88749;image[/IMG]

[IMG="screenshot2"]http://www.donationcoder.com/forum/index.php?action=dlattach;topic=39626.0;attach=88751;image[/IMG]

You can grab it from my website here: http://www.donationcoder.com/forum/index.php?topic=39626.msg372639#msg372639

(100% free and clean, no ads, no nothing); if people have requests for features i'm happy to listen.

Again, this app doesn't "do" anything -- it's just a toy to let you pretend like you have some more deluxe controls in your car.
[MTCB Android Head Units Q&A] elcolombia17:
Me the same

---------- Post added at 02:26 AM ---------- Previous post was at 02:25 AM ----------

Because i have a canbus Box and all button are preset by standard

---------- Post added at 02:29 AM ---------- Previous post was at 02:26 AM ----------

How can i make a log? Any way to disable the mode switch? I need disable this funtion
[MTCB Android Head Units Q&A] jkchr1s:
Well I determimed the can bus adapter does nothing. I jumped the red wire off the yellow and my had no SWC, factory amps didn't have any output. Now I'm headed to a local shop to buy a canbus adapter.

How do you wire the canbus adapter and still have SWC from the head unit? Do you use the green wires in to the head unit or those other 2 that look for varied voltage?
[MTCB Android Head Units Q&A] agentdr8:
I'll take a look and see what changes are needed.

Is this behavior present only when you use your mode button to switch between radio and PA?

Try changing the DPI value to 190 or so, then hit the Save button. It'll ask you if you want to kill any running processes for that app, answer OK. Then go relaunch the app in question and it should fit better on the screen.

Some vehicles send SWC through canbus signals, others use the standard analog resistance wires. You'll have to figure out what your vehicle uses. If it's through canbus, then the canbus adapter is responsible for decoding which button does what.
[MTCB Android Head Units Q&A] swanie2000:
Car recorder --- dash cam

Hi All,

Having trouble with CAR RECORDER. Has anyone got this to work yet?

I have a new logitech USB camera, and can get a perfect picture, as long as you don't try to record.

As soon as you hit record, the picture starts to wig out, and get all choppy, then it will smooth out for about 10-15 seconds, then it will wig out again. (over and over)

I originally thought it was the record speed to the SD card. It was only a class 2. But I have also tried class 4 and class 10 SD cards, and all three have the same problem.

Any ideas where to look?

How about a different DVR APP?

Thanks for any help!

swanie
[MTCB Android Head Units Q&A] manicuspanicus:
I will if it was your service . We had a talk with agent8 and i will have a look if it was his module that crashed. Great app by the way i enjoy it.

Another thing i have noticed since i saw someone else loosing the front cam dvr. Im using a cam as well however when i use the cam and the usb then i loose both ports. no cam and no usb. when i just use the cam with no usb plugged in it works with no problems. anyone has any ideas why this is happening to the usb ports? cant handle 2 devices at the same time? are both ports the same or should i switch devices to see if they are working?

thanks guys
[MTCB Android Head Units Q&A] jkchr1s:
I've been messing with this thing all night. I was finally able to power the unit up by buying a PAC RP4-CH11 adapter. I wired in all of the power connectors and wired the speakers as instructed to do with a factory amplifier.

Now that I have power reliably, I still have no audio or SWC. Per the PAC documentation, "The factory amplifier only accepts two channels of audio (left and right). Connect the front outputs of the aftermarket radio to the rear inputs of the vehicle connector..." The only sound I get out of this thing is key beeps and the single 1 sec beep when I connect to power.

The PAC adapter has a dial with settings from 0-9. They are labeled:

1 - Alpine (doesn't work)

2 - JVC (doesn't work)

3 - Kenwood (doesn't work)

4 - Clarion (doesn't work)

7 - Pioneer/Sony/Other (doesn't work, says other includes Advent, BOYO, Dual, Lightning Audio, Visteon)

9 - Fusion (doesn't work)

I'm guessing since I have a different CAN controller that I put my HU on None?

I connected these connectors to the PAC controller and the HU:

Parking brake

Accessory output

Illumination (although button lights are always on, don't really care at this point)

Reverse output

Yellow constant +12v

Black ground

Vehicle harness rear to HU front left and right (I tried front to front, same result... the vehicle harness only has pins to rear anyway)

There are a few unlabeled wires on the HU harness I have not connected. I'm not sure how the CAN bus connects to everything... the PAC has 2 types of SWC connectors: A single wire (blue/yellow striped) that says it connects to Kenwood, newer JVC and a 3.5mm jack that connects to Alpine, JVC, Clarion, Fusion, Pioneer, Sony, Boyo, Dual, Lightning Audio, Vision, or Advent.

There is an unmarked white wire that ran from the original CAN controller to the HU (along with a black, which is labeled as ground). Do I connect that to the blue/yellow striped PAC cable? Or do I use the brown wire labeled "KEY2-5V" to the HU? Do I pick a CAN setting in factory settings, or use none?

I'm at a total loss here trying to figure this thing out... thanks everyone for you help so far!
[MTCB Android Head Units Q&A] peti007:
I tried kill the Radio app but it didn't help. It seems when we press the BACK button while the radio app is in the foreground the android system sends a "shutdown radio signal" to the MCU.

Poweramp starts playing from 00:00 if I press the MODE button and if I close the radio app and start PA with shortcut too. I think not your program cause this behavior.
[MTCB Android Head Units Q&A] sixxkilur:
Some head units support updating through USB.
[MTCB Android Head Units Q&A] typos1:
Ejector seat ? Machine guns ?

---------- Post added at 11:27 AM ---------- Previous post was at 11:26 AM ----------

Are you using the RCAs ?
[MTCB Android Head Units Q&A] Danielitoss:
Hi everyone,

Last week my HU won't start at all, I take it out and try it on external power source with the ACC on +12v, and no problem, device start normally. I think the can bus decoder is making some trouble, but I hope it was temporary, and after this disconnection it solve this. I will try this afternoon. (I hope it was just a hang from the can bus decoder, because I don't know how to get a new one)

Now I am enjoying that it's beside my computer to make some upgrade & tests, and thanks to coudu, it is now in 4.4.4 :)

What is your way to get internet on the HU from your phone? USB & BT tethering doesn't work? Wifi tethering works fine but it need to turn it on, and sucks lot of battery...

Do you know a good app for a "night mode"? because at night, the HU brightness kill my eyes!:eek:

----------------------------------------------

model: erisin ES9781A KGL HU (on opel corsa d)
[MTCB Android Head Units Q&A] kevant69:
I posted this in the General section and got no replies. I don't want to clog up this thread but I would appreciate someones input. Please :D

I'm looking to buy a new stereo head unit for my Chevy Trailblazer. I'm no stranger to android OS nor am I to rooting phones just not familiar with the HU. I kind of narrowed it down to these:

http://www.amazon.com/dp/B00OIQJ21K/...I2RRLJ1DPL17GB

http://www.amazon.com/dp/B00OB90SOY/...I1OKEG3KICTLGC

I'm looking for some opinion's or any knowledge on what would be the best to buy.

Thanks in advance

Kevin
[MTCB Android Head Units Q&A] R4D3N:
I have a big problem with both 4.4.2 and 4.4.4 from Coudu.

I installed those firmwares on KGL for E46 with 1024x600 screen but after a while I get Unexpectedly removed hardware when I listen to music from USB stick, I get this error for 20-30 times in 2-3 minutes. Sometimes it works without any problem for a few hours but sometimes it drives me crazy.
[MTCB Android Head Units Q&A] jkchr1s:
No, I'm using the amplified outputs as specified by the PAC controller. It's like the amplifier is not receiving the signal to power up from the CAN bus.
[MTCB Android Head Units Q&A] Tessa33a:
firmware eonon g2110

hello i want upgrade my eonon g211o, when i ask about my hardware on the radio i read, : VERSION MCU :MTCB-JY-V2.08, ACTUALI I HAVE DE 4.2.2 ROM, BUT I WANT UP AT THIS FIRM JY 4.4 2. 800x480.zip its correct? its this one?????

thanks
[MTCB Android Head Units Q&A] zorantoma:
I have the same behaveaur on my JY for VW Passat,but only with engine running.
[MTCB Android Head Units Q&A] jkchr1s:
I have audio!!! I had to connect the blue wire from the HU to the blue wire on the PAC. Hope this helps someone!

Now I just need to figure out how to get SWC working.

My PAC has a connector for SWC with 2 styles, a 3.5mm jack with 3 wires (the voltage did not vary on any of these wires) and a single wire for other applications. I connected ground to steering ground on the harness, then the single to the white unlabeled wire off the HU harness, but nothing worked.

Did anyone get a PAC module working with swc?
[MTCB Android Head Units Q&A] typos1:
Theyre both the same, so I d go for the cheaper one.

---------- Post added at 02:33 PM ---------- Previous post was at 02:31 PM ----------

Right, I take it you have an adapter that drops the amplified signal down for the amp ?

Have you checked that the amp is getting power ?

EDIT: just read your post below, your amp WASNT getting power then !

Re: SWC, have you checked if your car has CAN Bus or resistive SWC ? Not all cars with CAN Bus have CAN Bus SWC, as agentdr8 told you earlier.

---------- Post added at 02:35 PM ---------- Previous post was at 02:33 PM ----------

Youve posted you MCU specs not your Android specs, although we can tell from the MCU that you are using one of these units. You can upgrade to 4.4.4, your unit manufacturer is not relevant for the Android side. For more info read the first page.
[MTCB Android Head Units Q&A] jkchr1s:
The swc is definitely through the can bus. http://www.jkowners.com/forum/showthread.php?t=57662#/forumsite/20570/topics/57662

The PAC adapter has swc outputs on it, I just don't know what wires to try using on the HU harness. It is designed for brand name HUs and has a 3-wire 3.5mm jack OR a single wire for other units. I tried the single wire to the white unlabeled wire on the HU that was connected to the original canbus that did nothing but nothing responds.

Here is the PAC controller:

http://www.pac-audio.com/PACProductData/RP4-CH11/1_Instructions/rp4-ch11_instructions_050913.pdf
[MTCB Android Head Units Q&A] typos1:
You need to connect to key1, key2 and SWC ground (or normal ground if no SWC ground).
[MTCB Android Head Units Q&A] Tung_meister:
[MENTION=853627]coudu[/MENTION] Is there any chance of your latest release as a flashable zip? It would be much easier for 4.4.4 updating purposes than having to do the complete flash and restore.

[MENTION=5867075]KeiserSozeyFr[/MENTION] I'm having no luck getting the spotfiy controls to work. I've tried changing various settings but I can't skip at all.
[MTCB Android Head Units Q&A] Tessa33a:
I doubt that file using

[/COLOR]

Youve posted you MCU specs not your Android specs, although we can tell from the MCU that you are using one of these units. You can upgrade to 4.4.4, your unit manufacturer is not relevant for the Android side. For more info read the first page.[/QUOTE]

yes ok thanks I understood that the mcu part ees one thing and another part is android , but I doubt that file using:confused:
[MTCB Android Head Units Q&A] typos1:
yes ok thanks I understood that the mcu part ees one thing and another part is android , but I doubt that file using:confused:[/QUOTE]

I m sorry I do not understand what you are saying - there is no problem, go right ahead and upgrade your unit :)
[MTCB Android Head Units Q&A] jkchr1s:
Well, I only have 1 wire labeled KEY2 (brown). The wiring diagram says KEY1 is also brown, but there's only one brown on the harness. I tried using the KEY2 and the white, but nothing works. I set the CAMBUS to None in settings and tried to use the steering key assignment in settings, but nothing is recognized.
[MTCB Android Head Units Q&A] jkchr1s:
In the picture you previously attached with the arrows, I do not have the 2 wires. There are pins on the connector, but no wires on the harness.
[MTCB Android Head Units Q&A] typos1:
That is strange as those 2 wires are for CAN Tx/High and CAN Rx/Low, the headunit needs them not for SWC but for other CAN Bus related stuff, AFAIK it also needs key1 and key2 as the adapter converts CAN signals into resistive for the HU. I should contact your supplier.
[MTCB Android Head Units Q&A] MasterPrenium:
Should be that the USB +5V current is too weak. Or a kernel issue.
[MTCB Android Head Units Q&A] jkchr1s:
Thanks for all the help man. I emailed the seller but havent heard back yet.
[MTCB Android Head Units Q&A] manicuspanicus:
Thought of that myself however i believe this is a 4.4.4 issue since im only seeing it under 4.4.4.
[MTCB Android Head Units Q&A] MasterPrenium:
dmesg could show a little bit debug for this issue ;).
[MTCB Android Head Units Q&A] typos1:
This has already been discussed several times and we ve concluded that the HU DOES do CAN Bus - the adapter just gets the reverse, illumination, speed pulse etc from the CAN Bus system and sends it to the HU, the MCU then processes any other info like door open warnings, trip computer info, HVAC info etc, this is why there are different CAN Bus settings for the MCU, if the adapter did everything why would there be CAN Bus settings for the MCU ? There are also 2 wires for CAN Bus on in the plug the goes into the back of the HU, these are missing on non CAN Bus and universal units. What makes you think it different to this ?

Direct to Android you mean via USB or something ?

I m interested in something similar and how you get on, keep us posted.
[MTCB Android Head Units Q&A] RyanBRZ:
Is anyone running this unit with all speakers on an external amplifier? My amplified sub sounds at a lower level than my front/rear speakers that are powered by the radio. Thinking of amplifying front/rear speakers in hopes they will sound more equal. Maybe the RCA low level outputs are not synced with the amplified speaker outputs?

Also looking for a way to set max volume at 20 instead of 35 or whatever the default is.
[MTCB Android Head Units Q&A] comptechltd:
USB Hub

Is anyone having any issues running a Powered USB Hub? I am looking at a Startech industrial hub that I would hook into the vehicles 12V and hook to my HU USB output. My thought is that I would use USB tethering for my phone and have the advantage of charging my phone while I am tethering. In reading through this thread I found one user who had issues with his GPS dropping out with the hub attached. I realize this may be hardware specific so I just wanted to see how many were using a powered hub and if there were any issues.

Thanks