yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] UlrtraTM:
Hi im very sorry.

But can someone tell me how i can use the sd card in the gps slot for navigation software or how is this beeing used?

for firmware updates i used it yes.

Thank you

And by the way i orderd my Head Unit directly from Klyde.

Here i have the 2 price lists and theres also the contact of the good speaking english woman from the sales team.

Was quick in germany and had no toll costs everything worked fine and quick.

The prices are really good better then the one from the resellers on ebay or somewhere.

Theres only one mistake inside for displays lower then 7inch theres no 1024x screen.

h t t p s : / / mega.co.nz/#F!vJ1k1TyQ!j1Tk-uLoNdds1AY7Xuc5mg
[MTCB Android Head Units Q&A] kruuth:
How long does it take? I've been sitting at the startup screen for like an hour
[MTCB Android Head Units Q&A] 4stimpy:
Car record, daily roads problem

I am trying to get my dashcam to work stable.

I have an R0003 front usb camera for a dashcam.

The problem is that my image starts to flicker and than suddenly shows upside down.

https://www.youtube.com/watch?v=DGWqb8kQ-M4

https://www.youtube.com/watch?v=6-JmoSB5EaE

I have tried other usb port.

Other record location.

Daily roads and Car record give same results.

In the original v 4.2.2 android and v 2.4 mcu and the latest malaysk with mcu 2.55 the same problem.

does someone have a solution? or know what the problem could be?

Now Eonon sugest to upgrade/downgrade to kld4.2(20150311)

Personally i don't think it will solve the problem.
[MTCB Android Head Units Q&A] Marius B:
Do you have some plan for new release rom for rk3188 hd ?
[MTCB Android Head Units Q&A] agentdr8:
It might take forever, as in it'll never finish. Unless you've got a way to get into adb shell and look at the logcat, you're probably better off flashing a rom and starting over and not enabling ART.
[MTCB Android Head Units Q&A] kruuth:
Ok. The reason I flashed was because iGO was giving me an error that I posted here. I was told switching to ART would fix it. How do I flash the ROM in this state? Just put UPDATE back on the GPS card?
[MTCB Android Head Units Q&A] TiBiSMART:
Hi!

Can you tried shorten the longest names of your phonebook?

In my experience this solved my same problem.
[MTCB Android Head Units Q&A] agentdr8:
Yep, copy update.img back to the GPS card and flash via recovery.
[MTCB Android Head Units Q&A] matekhr:
KLD2 MCU

I had to change the main board of my Klyde unit because of malfunction, so I ordered a new one directly from Klyde (Jacky).

I used KLD 2.55 MCU version on my old board, while the new board comes with KLD2 2.55

Also, tuner chip on my new board is TEF6658, and power amplifier is TDA7388. There are some other minor differences in layout.

Radio sound is overall much better than with the old main board, FM reception is better (like the original HU) and RDS seems to be faster than before.

I asked Klyde for an original KLD2 2.55 file, but there's no answer yet.

I would like to test the MCU file by darkleo, but have no idea where to obtain the original file in case things go wrong.

And, who knows, maybe the guys in Klyde already put darkleo's mods in original file... (because the sound is much better than before)

Somebody knows where to get the original KLD2 2.55 MCU image?
[MTCB Android Head Units Q&A] kruuth:
Ok. How do I get to recovery? Power and reset?
[MTCB Android Head Units Q&A] agentdr8:
The OP of this thread has a plethora of information, including the answers to a lot of common questions. I suggest looking it over.
[MTCB Android Head Units Q&A] jacekruf:
Press and hold reset button (small hole. Use sharp pin) .

Press Power button still holdind reset.

After 5 sec release reset still holding power button.
[MTCB Android Head Units Q&A] kruuth:
Cool thanks.

Malaysk, is it possible to use your launcher with the faucory klyde ROM?
[MTCB Android Head Units Q&A] dexter302:
I did upgrade to MCU v2.59 by Malaysk few hours .

The wheel control is work normal.:good:

use firmware : JY Jun 10,2015 update Android 4.4.4 kitkat version
[MTCB Android Head Units Q&A] clearchris:
Hey thanks! Great find!

How much did shipping run you?

I have been sitting on the fence about getting another unit, but I was having trouble finding a supplier with the quad core KLD radios. This is perfect!
[MTCB Android Head Units Q&A] oatja:
Sorry just saw your reply. I use 2.22 and 2.53 on my KGL HU the light always on while it operate but if unit off button light will sync up with my headlight. I need it to sync with my headlight when HU on or off.

Siffion what HU brand are you using?
[MTCB Android Head Units Q&A] TiBiSMART:
Yes. I removed the exposed and the problem had solved.
[MTCB Android Head Units Q&A] edit:
Does it have the sound quality mod?
[MTCB Android Head Units Q&A] obioan:
The first time i tried to install the unit I thought it is plug and play (with CANBUS), just remove the old stereo and plug in the new one. But the sellers failed to mention the first thing I should do when installing the unit such as going in factory settings (which by the way it has a password: 126) and change CANBUS type for my car.

Failing to do that determined my car's behavior: after install, when I turned the key to contact position the unit boots ok. After about 1 minute it shuts down regardless. After that I cannot boot it anymore unless I remove all wires and reinstall the whole unit. But that has the same effect.

After some research and talking with the seller (which has a response time of a snail) I found the second method of wiring without CANBUS.

After removing the CANBUS I had to connect the ACC wires and the some other red/white wire for steering wheel controls. To my surprise, the unit booted well and worked well since then.

The main two disadvantages (without CANBUS) I found are:

- if you have a reverse camera it will not work in reverse. It takes some special wiring for it to work as advertised.

- the power on/off "problem". The unit only boots when the key is in contact. If I turn off the engine then the unit automatically shuts down as with CANBUS the seller says it shuts down only when you remove the key from contact.

I will test it again with CANBUS as soon as I will purchase a reverse camera and hopefully it will work as expected.

On another note, I am very happy with the unit so far. Everything works as expected. I am most thrilled about Waze and OTG 3G internet (just plug the stick and all settings will be auto).

The only problem that worries me is: how will it behave in time ? How will the screen behave in winter at -15 degrees ?

About the color of lights. At first I tested the unit in daytime and never switched on the lights from my car. I was wondering why doesn't the lights from HU stay on for more than 2 seconds then I realized I had to switch the lights on. After that the led worked well. It even has auto-dimming when switching the car's light.
[MTCB Android Head Units Q&A] Stickypinkyfinger:
Hi I see you mentioned the rear camera not working. Funny you should say that, I took my stereo out yesterday and tried the rear camera but nothing worked. I then tried the rear camera in video in and it worked straight away. Not sure what's wrong as rear view not working. Did I need to connect the brake light wire or some other wire as I've left the brake, key 1, key 2 wires out?
[MTCB Android Head Units Q&A] veget83:
is the same for me....

I have a Audi A3 and work only if set "no" cambus in factory setting...

Another question...

After flashing Malaysk rom the unit boot slowly (at least 10second) compared with kgl 4.4 rom...

Any ideas to make a fast.boot?

I've tried to remove some services in autostart setting...

Inviato dal mio HTC One M8 utilizzando Tapatalk
[MTCB Android Head Units Q&A] poyz:
Are there change logs associated with MCUs? More specifically, what's the difference with the JY MCU 2.59 and 2.59 patched by darkleo. I'm not sure which one to download.
[MTCB Android Head Units Q&A] gnox:
You'll need to power the rear camera from the reverse light 12v. The 12v reverse cable on the Hu never seems to provide a voltage.
[MTCB Android Head Units Q&A] obioan:
If you're interested, I will post later a picture with 2 methods of wiring received from the seller. With/without CANBUS wiring.
[MTCB Android Head Units Q&A] Stickypinkyfinger:
My cable seems to be really weird and from the instructions, never mentioned it needs powering twice. This is my cable. One is the power that I connect to the camera and the other is the video in with a red cut wire connected at the other end what do I connect both ends to?
[MTCB Android Head Units Q&A] mkau:
Hi All

I have an Erisin 9405a which I tried to update. Version is KGL with 1024 display resolution and a Dual Core Processor. I downloaded the MTCB-KGL5-V2.53 file and try to update. Everything seems to work, but at the end I get an error message "E: write failed (No space left on device)"

It cannot be the SD card as this has 5 GB free space. I assume it is the internal memory. How can I clear the internal memory?

Problem is the radio does not boot anymore. It freezes where it says "Android Car Entertainment blabla"

Your help is much appreciated!

Best regards,

mkau
[MTCB Android Head Units Q&A] Stickypinkyfinger:
Yes please.
[MTCB Android Head Units Q&A] Stickypinkyfinger:
Is this going to be the best setup for connecting rear cameras? Does it say I need to connect to the rear light wire? (Literally cut the rear light wire, join the cable, solder back and then the other side to the stereo back wire)
[MTCB Android Head Units Q&A] edit:
Try to enter in recovery mode and flash back your original MCU.

If you don't know how to enter recovery mode please read on the first page of the thread.
[MTCB Android Head Units Q&A] kruuth:
HI guys. Not sure if anyone caught my post. Is it possible to replace the stock launcher on the stock roms with Malaysk's launcher?
[MTCB Android Head Units Q&A] brioschi:
yes, this schema is correct and is the easiest to implement. ( no canbus )

When you enter the reverse, it turns on the light bulb, the rear view camera and the red wire on the RCA is power supply.

the other side of the red wire must be connected on headunit.

When insert the reverse + 12v is also on the red cable to headunit and the screen shows the signal of the rear view camera

mine is a bit more complex because i added an extra manual switch
[MTCB Android Head Units Q&A] mkau:
Thanks. I tried to load the backup without success. But I have solved the issue. I downloaded the original firmware from 24th October. The installation of this image went well and now everything is back to normal and working fine.
[MTCB Android Head Units Q&A] Stickypinkyfinger:
Thank you. Going to try this over the weekend as I've only just put my middle console back together.
[MTCB Android Head Units Q&A] st_xm:
Hello everyone.

Who know where is located USB OTG port on my JY 9813 device?

Mainboard photo included.

Please help me with this. After trying to upgrade the firmware to a my own new version some failure occurred after which the device will not boot at all.

On the switching it on the buttons light up but the screen does not turn on. Entering into recovery mode (pressing the reset button during 10 sec) is also impossible. As I understand the device is reloaded but the same thing is happening again.

Thanks in advance.
[MTCB Android Head Units Q&A] englezu14:
hello, one question

i have kgl1 2.53

but anyone tried KGL1 v.2.55 with sleep and redesigned sound processor from darkleo - MCU_KGL_1_2.55_Sleep_Musik.rar

what means sleep ? and the sound processor is better than 2.53 ?

thank you!
[MTCB Android Head Units Q&A] zorantoma:
Not even,if you keep pushing the reset botton in the right hole for about 10-20seconds?
[MTCB Android Head Units Q&A] Tumke32:
Today i installed your latest rom with the MX v2.55 MCU, and i noticed that my radioscanning problem is solved in your radio app. With the installing of MX v2.55 MCU the radio reception is also improved (its finding more channels than i can save)

When Darkleo makes a sound edit of this MCU will that mean that the sound of the FM/AM radio (which is not controlled by android) will be better??
[MTCB Android Head Units Q&A] mad212:
Can someone explain to me how the sleep option works? I have it set to 10mins but if I shut off the car and start it up within 10mins it reboots totally. I figured if I restarted my car within 10mins it would wake from sleep and not be a full reboot.
[MTCB Android Head Units Q&A] markcm:
What MCU version do you have? The settings for Sleep are part of the newer ROM's although you must also have a newer MCU software to support the sleep feature.

---------- Post added at 02:24 PM ---------- Previous post was at 02:21 PM ----------

I have KGL1 and I updated with the V2.55 with Musik and sleep.

Sleep is a setting which allows your head unit to remain in standby instead of booting down when the key is removed. When you make a quick stop to fill car with gas, or go into the market and then return, the unit will almost instantly awake exactly where you left when key is put back in the car. This is a very good feature.

The audio/music update is very significant too, the sound is much more full.
[MTCB Android Head Units Q&A] gnox:
Connect the red cable to the reverse light power in your boot. Then connect the other end of it to the reverse camera wire on your Hu . This sends a power on to your Hu reverse display when the car is reversing
[MTCB Android Head Units Q&A] jperezch:
I think you need a rooted rom to be able to manually install a launcher, and stock rom is not.
[MTCB Android Head Units Q&A] mad212:
I'm on 2.55 mcu with musik and sleep and Malaysk's latest rom. Not sure what I'm doing wrong for sleep not to work.
[MTCB Android Head Units Q&A] papo12:
Door lock chirp, canbus option, and radio option questions

just had a question I installed a kld stereo system to my Corolla and the chirp sound went away when the doors lock, has anyone else's sound shut off? Under the factory settings in applications where it says canbus, it was preset to toyota_camry (simple), does anyone know the difference between (simple) (Union) and (raise) ? Do you think changing this to the other options of my car make help get it back or is the canbus just for steering wheel functions?

Also under radio option it also was preset should that be changed, because it seems like I'm getting less stations then the factory stereo, and a few stations keep getting poor signal.

Sorry about all the questions, just curious if anyone else has this issue.
[MTCB Android Head Units Q&A] markcm:
This might be a silly question but have you adjusted the time delay period from SETTINGS-->Extra Settings?
[MTCB Android Head Units Q&A] mad212:
Yes I have it set to 10 minutes. Maybe i need to flash the rom again since i updated only the mcu yesterday.??
[MTCB Android Head Units Q&A] markcm:
I wonder if your +12v and your +12v-ACC wires are correct? When you turn the key off, do you see a quick pop-up message that says "shutting down" or does the screen just go black instantly? If you don't see the message, it is possible your wires are mixed so that when you remove the key, all power is removed from the HU.
[MTCB Android Head Units Q&A] mad212:
Yes when i turn off the ignition it shows the shutting down message.
[MTCB Android Head Units Q&A] englezu14:
Thank you for reply, if I try 2,55 I can return to 2,53 if something not work?

You found some bugs with this mcu?

I m satisfied with sound of 2,53 but I not have a good ear to know if is better :)
[MTCB Android Head Units Q&A] markcm:
I used both 2.53 and now 2.55withMusik, I did not notice any bugs with either. The only difference I could detect was sleep function (after I updated my ROM), and the sound improvement which was very significant.
[MTCB Android Head Units Q&A] kruuth:
On the stock KLD rom there is an app called WifiDisplay. It allows display mirroring. I tried installing this on the malaysk rom but it just crashes. Is it possible to get this going or something like it in the malaysk rom? I'd really like to be able to do mirroring on this.
[MTCB Android Head Units Q&A] UlrtraTM:
I payed 25 bucks for shipping its not much and was also DHL for us germany great cause its fast only took 4 days and the unit was there :)
[MTCB Android Head Units Q&A] Malaysk:
FOR INFORMATION:

MCU BN and HA are fully compatible
[MTCB Android Head Units Q&A] markcm:
System internal memory partitioning and logic

Regarding the partitioning of memory:

Can anyone help me understand (or point me to an existing thread) how the internal memory works on these units?

My question is a bit specific, I have a newer 3188 with 16GB, my MCU is KGL1-2.55 with Musik and I have Malaysk’s latest ROM which helped with my issue some. I have a hard time understanding the partitions and directories when I browse with any of the file manager apps such as Astro or several others.

The reason for my concern is because I am having problems with Slacker Radio and Amazon Prime Music App’s with offline cache. Both of these apps require their cached offline music files to be stored on the “internal drive”, I have confirmed this with technical support from both vendors. Both vendors also told me that the storage directory for offline music is dictated by the OS, and it must be internal memory.

After updating MCU 2.55 and Malaysk’s ROM my 16GB is partitioned as follows:

1.97GB “internal Storage”

11.53GB “NAND Flash” which I believe is called sd_internal when viewing with a file browser.

Both Slacker and Amazon Prime music can easily cache several GB of offline music. Slacker radio is functioning although I am limited because it only takes a few music stations to fill up the 1.97GB “internal storage” which is also where all my other apps reside. Amazon Prime music is having another issue where I can download to the 11.53GB partition although within a few hours, one of the Amazon system files becomes corrupt and all of my downloaded music will be re-grouped into a category named “Unknown Artist”.

I have downloaded the full paid version of FolderMount [ROOT] app although I don’t know how to use it.

I have my 11.53GB of internal memory pretty much empty and I cannot get my music apps to cache to this free space.

Can anyone help me understand how to best manage this so that I can download more offline music without over filling my 1.97GB system partition?
[MTCB Android Head Units Q&A] ErAzOr2k:
Hi,

I'm running latest Malaysk Rom (RK3066 800X480)

The (security-)setting to install apps from all sources is grayed out.

Can anyone help me?
[MTCB Android Head Units Q&A] st_xm:
Yes. :(
[MTCB Android Head Units Q&A] agentdr8:
There are no vendor-provided changelogs for the MCU updates. darkleo might post what he's changed in his modified MCUs on 4pda.

You don't need root to install an alternate launcher, but you would need it to freeze or remove the stock MTCLauncher, which needs to be done if trying to use a different launcher.

If you're talking about the NEXT launcher that malaysk uses, I think you can find that on the Play store.
[MTCB Android Head Units Q&A] grahamwright1:
I have the same unit and the reset button is a little "off center" behind the hole on my unit. I used a paperclip and put it in the hole and gently pushed until it hit something. Then I gently moved it around a little and found the raised button a little to the left (I moved the paperclip to the right) and that was the button. Pressed it in for 15 seconds and the unit rebooted into recovery mode.
[MTCB Android Head Units Q&A] osmononame:
Hi all, just got my new Joying hu installed. Mcu-jy-v2.53.

Its all set up fine but the unit is draining cars battery and car needs a jump in the morning. Anyone had similar issues?
[MTCB Android Head Units Q&A] kruuth:
Thanks. I was just thinking about the launcher since it has more functionality than the built in one. I'm literally just trying to get the mirroring function to work so I can uber with this thing.
[MTCB Android Head Units Q&A] agentdr8:
Sounds like the sleep timer is set too long and is killing your battery. Or your ACC and CONST wires are mixed up, and the headunit is being kept on full-time.
[MTCB Android Head Units Q&A] veget83:
Does anyone know how to improve faster boot ?
[MTCB Android Head Units Q&A] jorjax:
Help to choose a unit

Hi people!

Im looking for an Android System for my car and i have been reading and viewing videos on youtube.

It looks that this system is the RK3188 and i see it has an external mic input. Does it mean that it solves the mic problem on the first post? or is still needed to perform the fix?

And i also would like to know if some of you have the parking sensors on the car and if this unit keep showing it.

Thanks! Im a bit lost and the sellers dind answer my questions.

"Aliexpress" /store/product/8-Inch-Android-4-4-Quad-Core-HD-1024X600-GPS-Navigation-Stereo-Radio-Car-DVD-Player/1490022_32341532393.html
[MTCB Android Head Units Q&A] Marius B:
Ho want apps from oem firmware for RK3188 1024 X 600 please search this link :

https://www.dropbox.com/l/UKp4cF2StqaUcSpKqMWilp
[MTCB Android Head Units Q&A] osmononame:
I have set sleep timer to 30 seconds so will see how it goes tonight. Pardon my complete and utter ignorance but how would i know about the ACC / CONST wires - i am using a harness specific to my car converting factory wiring to iso plugs to be used with this headunit - can it be something in there? The headunit loses power as soon as the car is switched off if thats any help.
[MTCB Android Head Units Q&A] doctorman:
How To Update/Upgrade Rockchip rk3066 To Android 5.1 Lollipop

How To Update/Upgrade Rockchip rk3066 To Android 5.1 Lollipop:

did anyone look into this that was posted couple of days ago ?

http://phoneupdateblog.blogspot.com/2015/02/working-tutorial-how-to-updateupgrade_976.html

http://phoneupdateblog.blogspot.com/2015/02/working-tutorial-how-to-updateupgrade_976.html
[MTCB Android Head Units Q&A] markcm:
When you turn your key all they way off, the HU should show a quick message that says something like "shutting down". If your display goes instant black when the key is turned off you likely have swapped ACC/Constant wires.

ACC should have 12v only when the key is switched on while the Constant should always have 12v.
[MTCB Android Head Units Q&A] osmononame:
Ahh - thats most likely my problem then - my headunit switches off immediately/screen goes black when the ignition is turned off. Will take it apart on the weekend and see whats what.
[MTCB Android Head Units Q&A] tolwyn68:
Having problems with Mic on KLD chinese Android radio

Here goes nothing, hoping someone can help. I bought and installed a KLD Chinese Android radio, and was experiencing the horrendous mic quality. So, I followed the instructions here, removed the C32 capacitor and wired an external mic directly to the leg of the Bluetooth unit that goes to C32. I grounded it on the chassis. However, getting no mic input at all from that source, so no one on the other end can hear me at all. Not sure what else to look at. I searched for a Mic pad on the board, no nothing. The radio does come with a USB adapter for wifi/3g with a 3.5mm audio in for mic. When I plug into that it seems to feed the mic to the internal mic.

Failing a way to properly connect external mic to the bluetooth unit, is there a way to safely re-establish the C32 connection so that I at least get some mic audio in on calls?

Thanks for any help.
[MTCB Android Head Units Q&A] mike.s:
I've reorganized and cleaned up the wiki. I'd like to encourage those who are knowledgeable about these units and comfortable editing wikis to contribute. The intent is to reduce the number of basic, repetitive questions in this thread, and to make information easier to find than by searching this megathread.