yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] DJAVI2010:
Rom version Search Help

Hello I bought a model Mazda 3 Eonon GA5151 accidentally updated version not surprising that someone can give me a theme Baka Rom version 4.4.2 or type I have a week trying to update some versions and can not ..!
[MTCB Android Head Units Q&A] kwalsh24:
Has anyone seen this unit before ? Model number TN-J-9813-8Y on aliexpress, looks totally different, makes me wonder who makes it & what the guts are inside. Somewhat like the clean look of the faceplate & the eq looks to have a fair more adjustments in the eq vs the kld & kgl..... makes me wonder if theres a sub control adjustment.

Think its a JY unit, any real feedback on the JY units vs the rest?

http://m.aliexpress.com/item/32221732127.html
[MTCB Android Head Units Q&A] typos1:
TV works on all versions if you have the TV tuner.

Only if you have the single tuner TV card/box, witht eh dual tuner TV card/box, reception is good.
[MTCB Android Head Units Q&A] manicuspanicus:
Know where can I get the dual tuner one?

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[MTCB Android Head Units Q&A] typos1:
Did you delete your original launcher ?

---------- Post added at 01:17 PM ---------- Previous post was at 01:15 PM ----------

The Klydes come with an internal TV card, the KGLs come with an external box, AFAIK the hardware is the same for both, but I dont know if the KGLs have the connections on the board for the internal TV card or not. What version do you have ?
[MTCB Android Head Units Q&A] manicuspanicus:
Kgl . Bought an external box , single tuner, unfortunately

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[MTCB Android Head Units Q&A] typos1:
Ask your seller for a dual tuner one, or you could try and improve things by getting 4 boosted TV aerials and using a signal combiner to join them together. do you have pictures of the motherboard of your unit ?
[MTCB Android Head Units Q&A] MasterPrenium:
Hello,

CarService is really powerfull, but is it normal that the phone service auto-start even if we never start it manually ? (I'm only using the hardware key functions).
[MTCB Android Head Units Q&A] zbaradlai:
Could you tell me how to change the 3-way Amplifier on 4.2.2. to this multi-channel EQ? Without update of course, other 4.4.2 apps works fine as you wrote, but I don't now h which to update the Amplifier.

TNX
[MTCB Android Head Units Q&A] manicuspanicus:
My seller doesn't have a clue. He didn't know if there was a TV tuner that works with the touch screen, he tried to sell me one with a remote.

All I have seen with dual tuners was on aliexpres but the seller didn't sell separately. Nothing on ebay.

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[MTCB Android Head Units Q&A] RyanBRZ:
Test please delete
[MTCB Android Head Units Q&A] noobique:
MCU 2.12 for KLD

dropbox.com/s/4ufx4wkt30c1hif/MCU%202.12%20%2B%20Android%204.2.rar?dl=0
[MTCB Android Head Units Q&A] typos1:
Ignore - quoted incorrectly due to RyanS2000's post below.
[MTCB Android Head Units Q&A] RyanS2000:
No, I made a backup. Do you have any idea how to get a new home to work? Do I need to upgrade to 4.4.2 first?

Edit: Sorry for double post, I realized I posted under a different XDA account (RyanBRZ) which is a second one I created not realizing I already had one from years ago (RyanS2000). I was logged in to the older one on an older device when I made my original post above. XDA doesn't allow deleting posts?
[MTCB Android Head Units Q&A] typos1:
Good that you made a backup, delete the old launcher and I think it will work.

(S2000, BRZ, someone likes their Jap performance cars !!)

Any noticeable changes ?

---------- Post added at 02:46 PM ---------- Previous post was at 02:43 PM ----------

What multi channel EQ are you talking about ? Poweramp ? If so then you are not changing the 3-way EQ, you are just adding an EQ for the Android part of the system.
[MTCB Android Head Units Q&A] RyanS2000:
Yes, I drove an S2000 for about 7 years then finally got a replacement that is a bit more practical and equal fun (BRZ).

- Is it worth it to upgrade to 4.4.2 from 4.2.2? Is there any worthwhile features\bug-fixes that appear with the upgrade?

- Will this unit ever see Lollipop?

- Are there any other launcher options that are nicer than the stock one? Are the market launchers nice on these devices (Nova, Apex, do they have a 'car' theme\layout? I use Nova on my phone but I don't want the same layout while in a car.

- Is Xposed a recommended option to use?

Sorry for all of the questions, it's hard to find this stuff in 700+ pages of posts.

Thanks for your help. I'm going to retire this account and use my BRZ acct.
[MTCB Android Head Units Q&A] ProfessorKnox:
Maybe he meant multi chanel EQ of new KK 4.4.2 build from pda.ru (see post #5682).
[MTCB Android Head Units Q&A] ultradj83:
ROOT 4.4.2

Dears, how to root 4.4.2 versions?

Tks.
[MTCB Android Head Units Q&A] typos1:
I think 4.4 is good. There is a problem with BT to OBD on 4.4, Klyde have said they are working on a fix, but you can use USB to OBD instead, its faster and more secure anyway.

Most of the launchers on Play are highly customisable, so install some and see if you can get a layout you like.

I dont think they will get Lollipop, if they do it will be in a year - it took that long to get KK.

Loads of people use Xposed.
[MTCB Android Head Units Q&A] RyanBRZ:
Cool thanks, I just ordered an obd2 to USB cable. Which version of Android and launcher are you using?
[MTCB Android Head Units Q&A] typos1:
I m on 4.4, stock KGL image at the moment, also tried 4.4 KLD image, but my headunit is on the bench and has been since update to 4.4, so I cant confirm or deny any reports of better sound in 4.4. Will go back to the KLD 4.4 image partly because the KGL BT app has a weirdly laid out phone keyboard.

I intend making a hybrid KLD/KGL launcher based on KLD, with the layout of KGL, using the KLD radio/music widget (slightly re-designed - no icons a you can tell by what is by whther its showing radio name or a song title) and with both the clocks and date/weather removed (theres already a clock in the notification bar, dont care about the date or the weather, personally) releasing screen space for widgets, then I can have a Torque boost gauge widget to the homescreen and still see the radio or music widgets. Since KK the stock music player does actually play flacs (was claimed it did before but it didnt), I like the simplicity of it and I ve not found any music players form the Play store that I am happy with, so I m using that. When I actually get a chance to do this is another matter !
[MTCB Android Head Units Q&A] spankaroo:
Sounds to me like you have your brake light /signal light wire connected to where the reverse wire should be connected to your head unit. Every time the reverse wire is getting power, it tries to switch to the rear-view camera app. That would be my guess.
[MTCB Android Head Units Q&A] goolac:
I will check into that... The wiring harness came from China pre-wired but this is the new version with 5 connectors to work with 2013, 2014, and 2015 Nissan cars. It was totally pug and play. The backup camera works like it should, when in reverse it comes on, and when I leave reverse it goes back. BUT this sure would explain a few things. Perhaps something is strangely wired. Too bad I have had absolutely no luck in finding the pin-outs for the wiring harnesses from the car. The standard connector with speakers and power is easy it is the second connector with the backup cam and Can-Bus interfaces, that seems to be impossible to find.
[MTCB Android Head Units Q&A] zbaradlai:
I mean Settings > Amplifier in 4.4.2 showed up in post #5682. I guess it can be changed with full flash update only..

TNX
[MTCB Android Head Units Q&A] BTW lover:
I just got the head unit installed and was wondering if there is any way to manually activate the rearview cam. On my old ce headunit I could manually activate the rearview cam.
[MTCB Android Head Units Q&A] agentdr8:
You could try creating a shortcut to launch an activity (some 3rd-party launchers can do this): com.microntek.backview.BackViewActivity

Or give me a few and I can throw together a quick app to do that.

EDIT: Looks to be easier to add it to XposedMTC, so I'll just add a launcher for it there.
[MTCB Android Head Units Q&A] BTW lover:
A custom app would be much appreciated. My car has got tinted windows and my reverse cam has got a pretty good picture even in the dark so I sometimes use it as a rearmirror replacement because I can't really see anything through the back window in the dark.
[MTCB Android Head Units Q&A] typos1:
Ah, its been tried on 4pda.ru, not flashing the 18.11.2014 Klyde KK update (the latest one that nobody seems to have noticed since that post), just replacing the settings.apk from it. Can be hard with the translator, but I think someone said it wouldnt save the settings, but I also think someone said it DOES work. About to try it.

Ideally we d get coudu to root the 18.11 update . . .

. . . unless this 4.4 update becomes available soon !! :

http://z5h64q92x9.net/tr-url/ru-en.en/www.youtube.com/watch?v=bEzwFDYQKtM

. . . and we can get him to root that !

Edit: couldnt find any existing settings.apk in system/app, added the new one anyway, would not install - failed to parse error, ok I thought, better delete it, settings.apk must somewhere else, but I get the message "delete failed", why would this be ? Worried might be in a bootloop if I restart.

Anyone got any suggestions ?
[MTCB Android Head Units Q&A] coudu:
Settings.apk is in /system/priv-app you could also try adding the SettingsProvider.apk from the new firmware
[MTCB Android Head Units Q&A] typos1:
Ok, stupid me - is this new for KK, havent seen this before.

But still cant delete the settings.apk I put in system/spp, neither with ESfileExplorer or Root explorer, even though superuser has granted both root permission, in Rootexploer it wont mount system/app as R/W now either, weird, whats going on ?
[MTCB Android Head Units Q&A] agentdr8:
If the new EQ/amplifier is anything like the previous versions, it'll require a newer MTCManager.apk, and all the MTC media apps to fully utilize it. The current 3-band EQ saves its settings as a 3-element array.
[MTCB Android Head Units Q&A] coudu:
maybe some kind of "file in use" try from a terminal su and rm -f /system/app/Settings.apk
[MTCB Android Head Units Q&A] agentdr8:
Yep, for KK+ all privileged apps (the ones that run as sharedUid=system) are now in priv-app.

You could try using Terminal Emulator, and manually mount the /system partition r/w:

$ su
# mount -o remount,rw /system
# rm /system/app/Settings.apk
[MTCB Android Head Units Q&A] typos1:
Right so maybe it wont work then.

---------- Post added at 10:58 PM ---------- Previous post was at 10:57 PM ----------

Ok, I ll try that, thanks.

Edit: it rebooted and its disappeared, so its alright . . . I guess.

BTW, just for info theres another new manufacturer - YZ, found out from 4pda.ru. Theres also "MD" versions mentioned on there a few weeks back, more and more companies are making these units. MCU seems to be coming along nicely development wise, gotta hope they update the tablet bit and start making RK3188 quad core ones with 2Gb of RAM, the 3066 is 3 years old now.
[MTCB Android Head Units Q&A] peti007:
ACC off while start engine

I have a Mazda 3 2004. With stock radio, when I start the engine the radio power off and then restarts. I saw on a Youtube video, the HuiFei head units can fast restart when ACC power lost for 1-2 secs. But what about if the head unit is booting Android when I start the engine? It will start the boot process from the beginning? Here is the video: youtube.com/watch?v=jsiGHB5SwxA

I bought a Mazda 3 specific Klyde HU, it's on way for me.
[MTCB Android Head Units Q&A] agentdr8:
I posted a schematic a few pages back for a power-off delay circuit, which will hold the ACC line hot for a few seconds, which should be plenty for cranking.
[MTCB Android Head Units Q&A] ultradj83:
Dears,

I've just upgraded my KGL to mcu 2.09 and Android 4.4.2 .

There are 3 things I'm still trying to do:

1. Root, maybe Kingo root will do the job, I need to connect to OTA USB port, but I don't understand how to pull the unit out...

2. Select right LED color, related menu is no more available in the settings on 4.4.2.

3. Make the unit not shutdown when car is switched off.

Any ideas?

Thanx a lot!
[MTCB Android Head Units Q&A] agentdr8:
Removal is vehicle-specific. Don't think it would matter much, as most units don't have any usb ports that are adb-enabled. You're better off flashing one of the pre-rooted KK images found on the FTP repository or via 4pda links.

You need to go to Factory Settings, enter 126, and enable LED RGB. Then go to Settings->Element.

If your unit doesn't power down when the car is off, it'll drain the battery in a short while.
[MTCB Android Head Units Q&A] agentdr8:
I posted a new beta of XposedMTC which now has a BackView launcher to manually start up the reverse camera view.
[MTCB Android Head Units Q&A] OlvrCA:
Volume

"Preference to override the stock volume OSD and place volume level in the statusbar"

Is there a way of making the volume completely non intrusive in a way that it would not make any app loose focus?
[MTCB Android Head Units Q&A] omarko:
hey guys, today when driving home, my audio went silent.

I checked the unit, all is functioning properly. However, the light on my AMP which is connected to the radio through the RCA connectors is not on meaning its not getting a signal. I have the antenna wire connected to the amp which is (what I assume) how the amp gets a signal to "wake up".

any ideas why this would just stop working ? I tried to disconnect the car battery hoping it would reset things but no luck. Still no audio. Fuses on amp are ok, not blown.

any ideas are welcome! cheers
[MTCB Android Head Units Q&A] typos1:
Does anyone have a Klyde unit on a car with cAN Bus ? I know which 2 wires are the CAN Bus lines, I m trying to find out which is the Tx and which is the Rx, can anyone help ? Thanks
[MTCB Android Head Units Q&A] dcmouser:
I haven't tested this yet but just wanted to say this is a wondeful idea and I'll be thrilled if this feature works. Will be testing soon
[MTCB Android Head Units Q&A] angusc:
Hi try Prefixer from pay store.
[MTCB Android Head Units Q&A] zaphod2:
I tested KK 4.4.2 and XposedMTC. with the sound volume indicator works so far as. but I have then the problem comes when a call via BT does not agree with the interlocutor.

then also from time to darken the screen to have turned on after a reboot without the option.
[MTCB Android Head Units Q&A] derekborg:
HuiFei - 2 DIN Pure Android 4.2.2, problems with usb 3G adapter

Hello

Happy holidays to all

This is my first speech since I joined this forum. Well, two weeks ago I bought the car audio unit Huifei - 2 DIN Pure Android 4.2.2. Everything works fine (apart from the sound quality of the radio) except the 3G Huawei E1820 USB Adapter with micro sim. The problem is related to Android 4.2.2 installed on the car radio; This type of Android does not allow the access to the customization of the provider as well as Android does for smartphones and tablets. I cannot edit APN proxy, mmc, mnc, ipv4 and other options. The wifi system works well with my 2 Note 2 but I don't want to use the wifi but a specific sim only for the use of data and with a specific phone contract. I could not find any more questions about it and I hope someone can give me a tip for the use the 3G modem router Huawei E1820 that was recommended to me as the best for Android.

P.S. The adapter connects but, obviously, the lack of the coordinates of the provider, doesn't let me to connect to internet.

Thanks for the opportunity and excuse my English scholastic (I'm Italian and I live near Venice).

Greetings to the forum, really very interesting.

Derek
[MTCB Android Head Units Q&A] ultradj83:
Agentdr8,

really many thanks for your detailed answers.

I'm just still missing a bit more details.

Well, what FTP are you referring to?

I've just been also checking 4pda, it's all Russian, difficult for me.

I will try this asap.

Is this the only existing code or there are many available?

Do you have a list/table of available codes?

Sure, I know this, and before to apply any modification I'll do an exact power consumption measure and estimation but anyway, is it possible to manage the unit like any other android device with software commands for shutdown and reboot?

Actually it seems to ignore any software power command.

You seem to be very in touch with this systems, so let me put a last question.

Have you ever noticed Wi-Fi falls with video streaming or heavy downloads?

This problem is not related to Wi-Fi signal and happens only when heavy data trasfert is running.

This system seems to not to correctly handle it, maybe the network routines' priority is not enough high.

I don't know if the same happens in 3G/4G, I still haven't found a compatible 4G dongle.

Thanks a lot one more time.

...
[MTCB Android Head Units Q&A] agentdr8:
That's the point of that preference; it puts the volume indication in the statusbar, where the foreground app title would normally be. That's out of the way, and doesn't steal focus from the foreground app like the default OSD does.

Keep in mind that not all reverse cameras are connected to +12V constant, so if yours is switched with the backup lights, the manual BackView will just show a black screen.

See the first post of this thread for the FTP repo link.

As far as I know, the only way to set the led colors is with the Element app using the sliders. I'm sure it could be done programatically, but I haven't seen a need or desire to.

These headunits, while they do run Android and are pretty much a tablet connected to an amp and tuner, don't include a battery, nor is any of the software optimized for power savings. None of the standard screen-off/sleep stuff works, as the mfgs never saw a need for it in a vehicle setting, where you have a large battery that should always be available when the car is running.

Have experienced this on older system images with different kernels. If you're on a KK image, try disabling Wifi Optimization when on battery.

---------- Post added at 07:22 AM ---------- Previous post was at 07:17 AM ----------

I haven't added phone (BT) volume to the OSD override. For now, it just handles the system volume.

I'm not sure I understand the last sentence.. are you saying your device reboots when it hits the dimming time?
[MTCB Android Head Units Q&A] ultradj83:
Well, from 4pda there's update_4_4_2_kld_1, a custom beta for KLD that should be compatible with KGL, it is reparted and I think this will be my least option.

On HUIFEI-Firmware google drive folder I can find:

20141110-800x480_boo_201411-22_v1.0.2 - It's for KLD, no information so I don't know if it's rooted

20141030_rooted_light_reparted_init.d_v3 - This is for KGL, of course rooted but I don't know what does "light_reparted" mean, so I have no idea what to do and how to install it.

20141030-boo - For KGL, no information.

I really don't know what to do, overall because there's brick risk playing...

Any suggestions?

This may do the job, anyway I'll need to retry with new kernel I will have to install for root...

Thanks again.
[MTCB Android Head Units Q&A] agentdr8:
The risk of bricking these units is diminished with a working TWRP recovery (thanks [MENTION=853627]coudu[/MENTION]). But here's a run-down of what you have to do:

- Figure out which Android system image you want. Doesn't matter if it's KGL, KLD, or RM-based. All of the system images work on all of the different devices.

- Don't flash a different MCU image than the one for your specific unit. If you have a KGL device, stick to KGL MCU firmware images, etc etc.

- Updating should be done with the stock recovery by placing the update.img on your GPS sdcard. Then go into recovery (follow the steps on the 1st post) and choose your update.img. Or you can let the Android OS find the update.img and prompt you to install it, which will reboot into recovery and process it the same.

As for the different image variants posted on the FTP site, some are pre-rooted, and some are not. If they are KK and aren't pre-rooted, there hasn't been any discoveries yet as to app-based rooting, so you might want to flash a pre-rooted image if root is important to you.

Light refers to the amount of "bloat" that was removed from the system image. Reparted means the partitions are resized to increase the amount of app storage (usually refers to the /data partition, but could include others like /misc).
[MTCB Android Head Units Q&A] ultradj83:
Well, I have a full TWRP of the original system, included recovery, but how to debrick if system doesn't start al all?

Go to boot manager and then?

Well I already flashed the latest MCU for KGL, can I flash only update.img without to change MCU?

I know how to flash via standard recovery, but can I do a flash using TWRP?

Nice, but can I flash the reparted kernel on his own, without to flash the whole firmware and MCU?

Is a reparted kernel compatible with any firmware?

Really many thanks.
[MTCB Android Head Units Q&A] zaphod2:
Speakerphone is not a single sound out if XposedMTC in the display is in the statusbar.

screen dims after a reboot without ever an option is turned dim brightness.
[MTCB Android Head Units Q&A] agentdr8:
I'll address the phone volume later today.

As for the screen dimming after a reboot without any of those options enabled, the system restores the previous backlight value prior to reboot, based on what was saved in the system settings. This is aside from XposedMTC. It will also dim if it detects that your headlights/running lights are turned on.

If you don't want your device to ever dim, I would recommend not connecting the illumination wire. Then go into Settings->Display->Brightness and turn it all the way up. It should remain at that level after a reboot.

---------- Post added at 08:55 AM ---------- Previous post was at 08:49 AM ----------

I have yet to encounter a situation where the device won't start at all. The most I've run into is a bootloop, which depending on how I got it into that situation, can be resolved using TWRP's built-in file manager and/or terminal.

Yes, you can provide just the update.img and not the mcu.img to flash one without the other.

No, the standard update/mcu images are not TWRP-compatible.

It's not the kernel that's different, but the parameters that define the partition sizes when the recovery is applying the update. It resizes the partitions first, and then formats them, so it's unlikely this can be done without flashing the modified system image.
[MTCB Android Head Units Q&A] ultradj83:
Dear,

can you zip the MTCDTV attach it here or somewhere?

Thank a lot.
[MTCB Android Head Units Q&A] zaphod2:
lighting cables are not connected.
[MTCB Android Head Units Q&A] twistanesh:
Hey everyone. First of all a HUGE thanks to the people running this thread. The info I've gathered has helped me love my unit so much.

I've got a question about upgrading my unit. I tried searching but I can't find a solid answer.

I have an Eonon Android Unit

MCU: MTCB-JY-V2.04

Model Number: S07

Android Version: 4.2.2

Kernel: 3.0.36+ root@ubuntu #983

Build #: rk30sdk-eng4.2.2

Could you guys tell me what process I should take to UPDATE and ROOT my device?

What I'm confused about is what files to chose for my unit.

Also, should I root the device on 4.2.2 first then update it to 4.4.2? Or should I update the unit first then root it?

I was having issues connecting my Galaxy Note 4 to the screen Mirroring function of this unit so I'm crossing my fingers this update changes things.

Also LOVE the KLD launcher looks. If an update for my device to android 4.4.2 isn't available yet, would I still be able to use the KLD launcher with 4.2.2?

If anyone could help I would greatly appreciate it.

THANK YOU!
[MTCB Android Head Units Q&A] Tung_meister:
I'm really looking forward to the 4.4.4 update, the launcher & apps look even better than the 4.4.2 release. I'm just surprised it's not already shown up after over a

Week on YouTube.