yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] markcm:
I'm sorry, I though your post showed that you had MCU KLD2-v2.55. KLD is your main supplier and KLD

2

is a variant with-in KLD, this variant number is sometimes related to the hardware configuration of the unit, for example some KLD have different hardware buttons on the front panel.

Either way, you can update the MCU and ROM separately.

Most significant features of updated MCU are a sound improvement in the files edited by "darkleo" and also ability to support sleep mode.

You can update ROM without MCU update although you may not have ability to use some features such as sleep mode.
[MTCB Android Head Units Q&A] xrapidx:
I've noticed something with the 3G - and Mayasks rom - it seems if the HU starts up to fast - 3G doesn't work - I just get the triangle with no bars... if I wait for the HU to start up and then plug in the 3G modem, I have a stable connection.

If the device starts up with the 3G modem plugged in - and it doesn't register properly, the only way to get it up again is to unplug the modem and reset the device, then plug it in once its up.

Sometimes if it starts a slow app - and the modem is plugged in, it registers fine ...

My question - is there a way to delay the startup of USB devices? I'd like to see if it makes a difference.
[MTCB Android Head Units Q&A] Blackwaterification:
I have the same problem after fixing my e392 to work with the radio. I get 3G for a second and then it's gone. Triangle full of bars but no 3G or LTE.
[MTCB Android Head Units Q&A] Tumke32:
I'm considering to update my rk3066 to a rk3188. Are there any risks and is it true that lollipop is not compatible with the rk3188? If no, does anyone know if they are developing lollipop for the rk3188?

What are your experiences in this community with updating to a rk3188?
[MTCB Android Head Units Q&A] halloj:
Malaysk status bar power icon

I would like to remove the power icon from the Malaysk's statusbar. Power icon visibility is set to off, but still visible in the right upper corner.

Any hints?
[MTCB Android Head Units Q&A] xrapidx:
Try start the HU. Then once everything is 100% up... plug in the modem. See if it works for you as well.

---------- Post added at 05:55 PM ---------- Previous post was at 05:53 PM ----------

Further to this... I can see the device has been added checking the dmesg log... but that's it. All I get is a triangle with no bars, and PPP widget doesn't detect the modem.
[MTCB Android Head Units Q&A] markcm:
I purchased my KGL unit with RK3188 with 1024x600

I have not experienced any issues. I have updated with the musik MIC (2.55 I think) and also run Malaysk's 7/7/15 ROM.
[MTCB Android Head Units Q&A] Blackwaterification:
Yes, it works when it's up and running. Just tested it since you wrote this. Only if it goes to sleep with the modem in it gets stuck.

It wouldn't be a problem for me to plug in the USB modem when I need it if I had an USB in the front. I tried extending the USB with a 0.5 meter cable, but the modem will connect for 1 second and then lose connection - probably due to low power? (the 3g symbol will appear for a second and be able to load a bit of a webpage, then die back to full bars again). Going airplane mode and disconnecting the mobile data doesn't work. But shutting off the ACC and returning without the modem inserted, booting the car and unit up, inserting the modem and then driving works just fine. But I don't have those 5 minutes every day to take out my HU and reinserting it.

Does anybody have an idea to get an USB on the front or inside my drawer in my car? Or adding power enough to work with 0.5 meters of cable? I bet the 0.5 meters are too extreme. I may try ordering a smaller extender.

Else a way to disconnect an USB and connect it again inside android would work just fine as I wouldn't have to remove and insert the modem. Except this way it'd get stuck in 4 bars as they stay even if I remove the modem unless it has 3G connection.
[MTCB Android Head Units Q&A] xrapidx:
Don't worry... I have the same problem - but if you can reproduce it, then at least we know there is an actual problem with more than one unit.

I don't think power will help I've got a powered

USB hub in the vehicle... tried connecting directly to the HU and tried a wall socket powered hub, all have the same result...EDIT. apologies... just reread... power might help with the length... but doesn't solve the problem with the startup.

I've also disabled sleep because of this...

Hopefully someone can point us in the right direction?
[MTCB Android Head Units Q&A] Blackwaterification:
I hope you're right. How does your powered USB hub solution work if you remove the USB and insert it after the unit is started? Also how have you mounted the powered USB hub in the vehicle? I wonder if I could do this without draining my battery.
[MTCB Android Head Units Q&A] xrapidx:
I edited my previous post. I bought 12v to 5v step down on ebay... wired off the cigarette lighter so it switches off with the vehicle.

Unfortunately I still need to remove the modem and reset the device to get it working...
[MTCB Android Head Units Q&A] gazdaaa:
Go to the xposed installer from app drawer and then to framework, to install/update xposed framework, then reboot twice, preferably. That's probably the reason why status bar modifications don't work.
[MTCB Android Head Units Q&A] halloj:
Brilliant, thanks a lot. Will try and report back.
[MTCB Android Head Units Q&A] kruuth:
Put a directory called IGO in the GPS SD card and you should be good to go. That's where it needs to be.
[MTCB Android Head Units Q&A] anyuzo:
Change AMP IC?

Hello Guys,

I've got a TB2929HQ amp ic, and I was wondering... My Klyde unit has a TDA7384 amp. I've checked out the tech sheets, they seems to be compatible with a few small differences. Which gives better sound? I've searched the interwebz, and the result is inconclusive. Everyone wants the other amp installed, no matter what they have. :)

What do you think?
[MTCB Android Head Units Q&A] SPACSYSTEM:
Ok and thanks markcm.

As I had previously said, l hope someone tells me what the correct ROM and possibly the MCU most suitable for my radio so I can work with the Generic OBD adapter. Why am I not getting communication between the Bluetooth model Vgate and the Torque Pro in the unit.
[MTCB Android Head Units Q&A] agentdr8:
Just a note, but now that you've got it working, you may want to copy your offline cache to an external microsd card. Any firmware updates you do will wipe /data and /data/media (internal_sd), so you'd have to redownload all your music again.

Might be crashing on one of those metadata calls, which to me indicates maybe you've got a corrupt audio file in your collection? Someone else had this issue recently, not sure what the resolution is/was.

It's an issue with the mode switching in XposedMTC. I still haven't finished the rewrite yet, as I've been out of town. Hoping this will get resolved in the next release, whenever that may be.
[MTCB Android Head Units Q&A] markcm:
There has been previous discussion in this thread about BT OBD. I think the issue is more that our headunits have a fairly low grade BT module which is not compatible with all BT devices. I don't know that you technically need a new MCU or ROM (I could be wrong).

I have used two different low cost bluetooth OBD devices with my HU and both worked well. I bought one from ebay and the other from Amazon.com, both for under $10 each. You might want to try a different OBD dongle as an option.

If you want to try to update, I don't think the ROM will have much effect, most likely the MCU file. it is very easy to update the MCU

First, do you have any BT function with your headunit? Can you Pair with any phone or other device? If you have not BT at all, you might want to check the settings, there is an area at the bottom, I forget the name (maybe it is called Factory settings) but you need a password to access which is usually 126, there are some bluetooth driver options that you can try changing.

I dont know the details but this appears to be the newest KDL2 MCU update. I think this is 2.55 with the musik upgrade. See it here

---------- Post added at 01:10 AM ---------- Previous post was at 01:00 AM ----------

Very good point, thank you!
[MTCB Android Head Units Q&A] xcuter:
HuiFei - 2 DIN Pure Android 4.2.2/4.4.2/4.4.4 RK3066/RK3188 CarStereo Radio H...

anyone need a RK3066 SOM?

$30.00 shipped in USA
[MTCB Android Head Units Q&A] agentdr8:
Good point! I hadn't thought about the casual uninstall wiping all the app data. Maybe a periodic rsync should be run to keep a copy of those files elsewhere.
[MTCB Android Head Units Q&A] gguevara:
Need help. I'm even more confused about rooting

Thanks for the reply,

I decided to pause the GPS installation. Instead I think its best to root my unit first, and then make backups. However, I have a KLD / 3066 chip / KK 4.4.4 / 800x480 res. I can't root this 4.4.4 stock rom, instead I need to flash a pre-rooted 4.4.4 rom (update.img file). Yet when I look in the directories (server or Gdrive), the files are .man files. What is this??? There are no instructions on this. And the other update.img files are custom roms. Why is this so frustrating. Either the files are .man (what is this?), or custom roms, or supposed factory roms (with no indication if they are prerooted of not).

I just want a absolutely known prerooted stock 4.4.4 rom for my KLD unit, with no customization. In this way, I can have control of what I want to modify/customize. It just seems so difficult to find a properly named stock prerooted rom. Can you please help me find one (without having a doubts about it).

Thanks,

Galo :confused:
[MTCB Android Head Units Q&A] xrapidx:
Got up this morning and my HU was stuff at the boot logo - 45min drive like that - I then reflashed upgrade.img, and was up and running from the beginning :(

Still have the same issue with 3G - need to manually plug it in after startup or it doesn't work.

---------- Post added at 05:29 AM ---------- Previous post was at 05:19 AM ----------

Could the 3G USB thing at startup have something to do with the kernel? I'm googling how to delay USB on startup - and found an article on delay_use for mass storage devices which refers to the kernel?
[MTCB Android Head Units Q&A] pants001:
xrapidx! my new generic dongle arrived in mail today.....tried it out in car and it works flawlessly straight up. I tried coming back from HU sleep, it fired up again no worries.....I rebooted HU, it came back again fine.

Ill try some more with normal daily use. (getting in car and driving without touching it but so far seems good)
[MTCB Android Head Units Q&A] xrapidx:
I've tried 3 so far, the E3131 being the most stable - which model do you have?

I've spent a small fortune on things that were said to fix issues, and did nothing so far - so getting a bit tired of it :/ new antenna, antenna amplifier, different 3g modems, usb hub, powering the usb hub, parrot microphone......
[MTCB Android Head Units Q&A] antvic:
Can you give more details?
[MTCB Android Head Units Q&A] pants001:
One of these from Ebay, easy to find, there are millions of them about

HSDPA-Wireless-3G-USB-2-0-Modem-7-2Mbps-TF-card-Adapter-SIM-SD-Network-Dongle

$19 AUD
[MTCB Android Head Units Q&A] xrapidx:
Thanks, I'll keep this handy incase I don't come right, don't want to drop another $20 - which rom are you running?

It definetly has something to do with the rom as welll - I've flashed an older KGL version and its booted up working 5 consecutive times now.

The picture you posted is of a HSUPA dongle, but the description is HSDPA, could you confirm which one?
[MTCB Android Head Units Q&A] pants001:
Same as you i think, Malaysk latest rom for RK3066 800 x res

My Vodafone dongle worked on factory Rom as an Ethernet adapter but not on this new rom, so yes something has changed.

(I couldnt send AT commands to the old one as with software it installs itself in windows as a Network Device, Cant see it in the Coms list)

Ill let you know how this new one goes with continued use, i few days i should have a good idea. ($20 is nothing compared to your time and sanity) :silly:

Edit: On the dongle it says HSUPA on front and back so id go with that....I just cut n paste the description from my ebay order
[MTCB Android Head Units Q&A] xrapidx:
Thanks, if you don't mind - could you pm me a link to the ebay auction - I'd like to be 100% sure.
[MTCB Android Head Units Q&A] SPACSYSTEM:
Ok, can you tell me which the seller you bought on the eBay and what model of your BT OBD?

Yes I have the BT in HU to work with my phone and other phones, only the BT OBD does not communicate. But BT OBD is good because it works well with my smartphone Grand Duos.

Is there any way to see if this MCU is compatible with my HU before the flash MCU?

Thanks again for all the patience in help me and clarify
[MTCB Android Head Units Q&A] pants001:
Hmmm id hang on for now. I think im facing same issues as you now. On way home the dongle cut out and looking in the glovebox it was off!

Possible the power issues you were told about?

Then after stopping at shops, i got in car and it didnt connect.

Ill try it again but i might be using the wifi device until a proper solution comes out. Id love to just be able to go back to my cheap n nasty Vodafone one.
[MTCB Android Head Units Q&A] xrapidx:
Ouch!

What you describe might be power? Hopefully the device hasn't gone.

I'm looking into a way to delay USB at startup, but my Android dev/tech experience is minimal... so not sure how far I'll get... and even if I do find it, I'm not sure it'll solve the issue after sleep... probably not.
[MTCB Android Head Units Q&A] boecki1:
get anybody a usb to ethernet adapter to work ? I tried one from Logilink, but it doesn´t work. I used also a aktive USB - Hub, but nothing.
[MTCB Android Head Units Q&A] jrgalang:
Those .man files are actually .rar. Just change the extension once you get them downloaded so either WinZip, 7ZIP, or WinRAR can open them for you.

---------- Post added at 07:06 PM ---------- Previous post was at 06:57 PM ----------

Curious: is it possible to mess up the recovery in such a way that it fails to detect a valid update.img file? The reason I ask is because it seems after verifying MD5 et all of stock pre-rooted ROMs using Malaysk latest RK3188 1024x600 ROM, the headunit still fails to detect that my update.img is valid. If it's a potential worthless recovery, what's the process to update / replace my existing recovery.img for a KGL4? Not sure if it's just the same as any Android phone where you have fastboot and you can flash the recovery through it.
[MTCB Android Head Units Q&A] buccaneerbob:
With the latest KLD Conqueror FW 13/7 you can enable Superuser with factory code *#hct#root#. This adds a Superuser option to the settings menu and remains until you reboot. To make root permanent you can install Supersu or Superuser.
[MTCB Android Head Units Q&A] halloj:
Where can I find that specific FW for 800/3066?
[MTCB Android Head Units Q&A] markcm:
This is the OBD BT dongle that I primarily use: BT OBD from ebay

I also purchased this BT OBD from ebay although I gave it to my friend.

The way you "check" if the MCU file is compatible is based on the name of the file, it must be the same as your original "KLD2":

if I accidentally linked you to any other MCU, I am sorry for that mistake. You must only update with the same type which you currently have now. You can also search this thread, there are may posts regarding MCU files and there may be more links to repositories as well.
[MTCB Android Head Units Q&A] xrapidx:
OFFS - I tried to update the kernel as per the OP - everything went as per the instructions (I have a KGL)... then on reboot I was presented with a 4.2.2 boot screen that kept fading to white... HU won't start.

I can get into recovery, which shows a 4.4.4 boot screen - but flashing mcu.img and update.img does nothing... it just reboots back to fading 4.2.2 screen - I also can't turn the damn HU off - when the car is off it just remains on.

Any advice? Busy coping a 4.2.2 image to the SD card to see if it works.

---------- Post added at 03:43 PM ---------- Previous post was at 03:28 PM ----------

Emergency averted - 4.2.2 load worked.
[MTCB Android Head Units Q&A] patagonia1:
Before buying another dongle check if you have the correct settings. These HU only recognize dongles with a particular name, "OBD" I think, but most of them have other names, for them to work you need to overide the mane in the exposedMTC module (need a rooted rom for that). Then, if your dongle uses a pass you have to set it up in BT configuration (it will not ask for a pass but need to set it anyways)

If it shows connection in the BT configuration then you are ok though you might need to reset Torque settings or play changing from bluetooth to wifi a copule of times till Torque recognized it.

If you will be buying another dongle anyways I would suggest trying to choose one that has auto-off so it will not drain battery while not in use.

Regards
[MTCB Android Head Units Q&A] Tomcsyy:
Bluetooth Version?

Hi all,

Which Bluetooth version does the HuiFei device have? (KGL-7650)

2.1? 3? 4?
[MTCB Android Head Units Q&A] jrm209:
Anyone could say me the right configuration in factory settings menu in order to make radio works?

I have a Klyde unit installed in Mazda car.

MTCradio worked with 4.4.2 and MCU 2.08, but I have upgraded to 4.4.4 now and not working. I have tryed with Malaysk's and COudus ROMS, so I think is due a bad factory settings. Hope someone could help with that mtcradio

Thanks in advance and sorry for my english
[MTCB Android Head Units Q&A] CARRisma:
I would like to buy a mini USB keyboard. Does anyone here use one with their HU? Is there anything I should know? Any compatibility issues?
[MTCB Android Head Units Q&A] Siffion:
I used a wireless keyboard/track pad the other day without issue. It came with a small Bluetooth dongle that plugged into one of the usb ports.
[MTCB Android Head Units Q&A] EuRomer:
I bought a new unit from Eonon. It's called GA5163F. I'd like to root it, i'm not sure if it's 800x480 or 1024x600.

Looks like its a KLD.

Here's some more details on it:

Information is scattered all over this thread and i'm not sure which one is the exact one I actually need.
[MTCB Android Head Units Q&A] Blankstar85:
Yours is the kld2 MCU and rk3188 800 x 480
[MTCB Android Head Units Q&A] JPS11:
Download "Screen Size" or some other app that will tell you your screen's resolution.
[MTCB Android Head Units Q&A] echudoba:
Try another sd card formatted fat(32), others had a issue with a bad spot in there cards. I just use a USB drive with a update.img. Somehow my hu finds it and asks to install a system update. and keeps bugging me until I remove it.
[MTCB Android Head Units Q&A] gazdaaa:
Hi, I've disabled petrows headunit service, and play pause works and steering wheel buttons work as expected, but the rotary knob for prev/next track isn't working, when I enable petrows again with different options (poweramp and/or media buttons) it doesn't work.

Can you add broadcast receivers for prev/next rotary knob into the XMTC when you have time, I would provide you with the logcat so you can know what to implement?

Thanks.
[MTCB Android Head Units Q&A] halloj:
Which application is best to use with a USB TV Dongle?
[MTCB Android Head Units Q&A] antvic:
Thank you for your answer. The truth is that the unit works perfectly. The only thing that happens is that I can not enter in Recovery mode.

A brick has not been made.
[MTCB Android Head Units Q&A] jugi:
Ok, thanks for clarifying this :)

As i have the KGL unit it seems to be the C32 unit.

If i understood right, the big problem caused that the internal and old external mic were in pariller, that make the sound so bad?

-Jukka
[MTCB Android Head Units Q&A] buccaneerbob:
Here you go:

RK3066 800x480 13-07-15

https://dl.dropboxusercontent.com/u/6185489/kld_conquer_rk3066_p(20150713).7z

RK3066 1024x600 13-07-15

https://dl.dropboxusercontent.com/u/6185489/kld_conquer_rk3066_h(20150713).7z

To root all you need to do is enter factory code *#hct#root# to enable ADB Root mode and then install SuperSU or Superuser for permanent root if required.

Thanks to agentdr8 for finding the new codes.
[MTCB Android Head Units Q&A] jrm209:
I get an error when I try to update the MCU (without ROM). I insert a MCU.img file in the microsd but when I run the upgrade it says:

E: Can´t Open /mnt/external_sd/update.img

Can not found firmware image or invalid image

What update.img is refering? Is not posible to update only MCU?
[MTCB Android Head Units Q&A] matt1981m:
i did check the factory settings menu. There were gain adjustments for all stock applications except the video app. anyone else have any ideas?
[MTCB Android Head Units Q&A] EuRomer:
Can I replace the screen density without rooting the device?
[MTCB Android Head Units Q&A] echudoba:
It is a normal message when you are not updating the rom. Check your settings / about and your mcu is most likely been updated.
[MTCB Android Head Units Q&A] pants001:
Device not fried, just turned off by the looks....tried it again on way to work. seemed fine the first 20 mins then after that it turned off and was quite hot to touch.

Is it a power issue (when the 3g signal is weak maybe it cranks up the power?) or overheating.

Either way going back to wifi until a new Image comes out and i can go back to Ethernet modem
[MTCB Android Head Units Q&A] gguevara:
iPod takes long to be recognized

Hi Rob,

Did you ever get this issue fixed? My same exact unit is also taking a long time to recognise my iPod Nano. Did you need to root and then modify something? Any help you can provide would be great.

Thanks,

gg
[MTCB Android Head Units Q&A] SPACSYSTEM:
Yes, my dongle has the name Vgate, then it should be so that, does not communicate with Torque.

But where I have to set up the pass? But yes, it shows my connection in the BT configuration, but shows the name vgate .:crying:

Ok, thank you for your advice.

Thanks a lot

---------- Post added at 01:17 AM ---------- Previous post was at 01:12 AM ----------

Ok, thanks markcm, and do not worry, I not have messed anything or make apdate the MCU. :good:
[MTCB Android Head Units Q&A] jrgalang:
Thanks! Will try re-formatting the SD card again.

---------- Post added at 11:27 AM ---------- Previous post was at 11:24 AM ----------

You will have to try and change the radio from one option to another in the factory settings menu and hit [Apply] then restart your device. The only way to know that it's the right config for your radio is that once you try to tune the radio, there will be audio.

---------- Post added at 11:34 AM ---------- Previous post was at 11:27 AM ----------

Apparently I'm not that good on finding hyperlinks. Since I'm on Malaysk' latest ROM, I back-read his RK3188 post and found the link for the KLD APK's including the launcher. Everything's looking ok now and it doesn't look like I'll need to update my ROM again. My only concern left is when using custom player (Google Play Music). If I'm using the stock Music / Bluetooth app and I press on next in my steering wheel, the Google Play Music will play alongside the Music / Bluetooth app one. I suspect this is just a conflict with the XTC Module and the RK3066 app, but I can't seem to find the option anymore to prevent playback to start when pressing the next button in either app (I sure did see it on the play store version of the RK3066 prior to updating I think). Any thoughts?
[MTCB Android Head Units Q&A] yas1987:
Weird volume changes

Hi evryone! Just got me one of these units nd updated to latest malaysk rom ( thank u). have a odd issue with thr volume . On bluetooth music playing the volume chnages on its own. Slown down volume goes down nd vice versa. I nevr installed gala on it eithr. Can ne one plz chime in by ne chance?

Edit: its a joying unit 3188, 1024x if that matters.
[MTCB Android Head Units Q&A] doctorman:
explined millions of times.. even on the MAlaysk ROM page where you downloaded the files..

jumps at the sound of speed when driving, it is necessary to go to the settings MTC Service (Car) and turn off the sound speed compensation (GPS).

-----------

Don't forget to hit the THANKS! button