yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] themissionimpossible:
These HUs don't support the NTFS file system, have you formatted the pendrive in this mode?
[MTCB Android Head Units Q&A] royalhawk2002:
It was factory formatted (I think fat32) and is working on other usb on the Hu

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---------- Post added at 03:44 PM ---------- Previous post was at 03:41 PM ----------

I did't install the included external mic because I see a mic in front of the Hu and I was supposing that was working. ..but it seems completely disconnected since it is not working either with BT calls and voice search within Google waze etc. Is there a setting somewhere?

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[MTCB Android Head Units Q&A] savesheep:
Will these roms work with JOYING JY-UQ124U? It is an RK3188 with 1024x600 resolution. Also, is it worth waiting for JOYING to release the 5.1 update before installing a custom rom or is that update not that great in the first place?
[MTCB Android Head Units Q&A] TT_Vert:
Yes it will work and you can always install 5.1 over 4.4

Dave
[MTCB Android Head Units Q&A] themissionimpossible:
Generally on the HU one USB port is for the 3G/4G modem and the other is for mass storage devices, so only one can be used.
[MTCB Android Head Units Q&A] royalhawk2002:
Wavesink trial dab and fm with rtl driver running on my Hu.

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[MTCB Android Head Units Q&A] Major_Sarcasm:
Hi all

I'm having a bit of a problem getting my SWC working. I have a 2007 BMW 1 Series (E87). I had a Kenwood head unit in there and the SWC have been working fine. I finally got round to fitting my Huifei head unit but can't get the controls to work at all. I had the Huifei in another car (Ford Mondeo) and had the SWC working there, so I don't think there's an issue with the head unit itself.

The Kenwood was attached via a Canbus link (pictured) and was connected via a single wire (also pictured). I have tried every combination of wiring that I can think of with the GRD and K1 and K2 wires but can't get a squeak out of it on the SWC setup page.

I'm running Malaysk's newest ROM (800x480). When it was in the Mondeo, it was running the stock ROM if that makes any difference.

Any advice on trying to get the controls working would be appreciated.
[MTCB Android Head Units Q&A] psychegr:
Hi,

i recently bought an Erisin ES2507B for my mercedes.

I installed it and it works great except the SWC which has a small issue.

If i try to change pages in the vehicle dash at the same time i change the radio station or the song that plays in the music player and this is kind of annoying.

The unit came with a canbus decoder which has a connector with 2 wires that plugs on the factory canbus connector and another connector with 2 wires that plugs in the headunit.

So i am wondering a few things. How the headunit communicates with the canbus decoder? Is it serial rx/tx? Is it canbus? Is there a 2 way communication, ie send a request to the mercedes canbus?

I have developed a couple android applications before and i thought to give it a shot and build an app that can listen to the canbus messages that the vehicle sends and transmit some canbus messages back to it. What i am hoping for is an application/service that will allow the car SWC to work perfectly, i mean that i will only change the next/previous track only if i am in the AUDIO page of the dashboard and not in every page of the dashboard and also maybe i will be able to send some text info like song name back to the dash board. I have the tools and knowledge to analyze the canbus protocol. What i dont know is how the headunit communicates with the vehicle canbus.

I would really appreciate if anyone could provide any information on that to get me started with this project.

Also could i use any malaysk ROM with that unit?

Thank you in advance
[MTCB Android Head Units Q&A] Qtop:
usb not working

Hello,

As from today my two usb cable connections (on the back) stopped working.

I running 4.4.4

Could this be a software problem?

Thanks
[MTCB Android Head Units Q&A] OneCheekyDevil:
Try re-flashing the current ROM or the stock ROM . If the problem is still there, it may be hardware.
[MTCB Android Head Units Q&A] Qtop:
Okay thanks.. I'll see if I can find out how to do that. ?

---------- Post added at 05:31 AM ---------- Previous post was at 04:39 AM ----------

Maybe you want to point me in the direction how to do this.

My unit:

Mtcb KYD-V2.43

4.4.4 android

Model version S07

Hope you can get me a "how to" as I'm a noob with these systems.

I tried a factory reset and a reboot of the unit by pressing the power button and reset button at the same time.

Still no USB ports working.

Thanks
[MTCB Android Head Units Q&A] gk66:
It doesn't sound like you've ever changed the Rom or MCU. Are you still on stock? If you are then a factory reset should solve any software related issues. In that case I'd suspect a hardware fault. If it is hardware and the unit is in warranty the seller is your best bet for a fix
[MTCB Android Head Units Q&A] Qtop:
Just out of warranty. And yes everything is stock. Any chance it can work again by rooting the device?

I really miss my mobile internet connection in the car.

Guess there is no other option then the usb stick with the SIM card?

Thanks for the reply.
[MTCB Android Head Units Q&A] gk66:
Rooting in itself won't help. Flashing a rooted rom might. Flashing another mcu might. It's your call. There is plenty info on doing both on here.

---------- Post added at 07:39 AM ---------- Previous post was at 07:37 AM ----------

There are other options for mobile Internet. Tether to phone or a 4g mifi device
[MTCB Android Head Units Q&A] psychegr:
Hi,

Have you tried to plug a usb flash drive that has an LED or tried to charge your phone? If it charges or the LED lights up, then you have 5volts at the usb ports, which is correct. I am guessing that this is a hardware failure and not a software failure since you havent touched the software at all.
[MTCB Android Head Units Q&A] derici84:
hello

hello friends i have android head unit which named navimex

i rooted it with factory settings code

and i want to update firmware rom but not sure which rom fit is for my unit

here is my device info

MCU

MTCB-MX-V2.67

JUL 10 2015 13:31:23

ANDROID

4.4.4-03082015

MODEL S07

KERNEL VERSION

3.06336+

root@chun-book#1542

mon aug 3 15:47:03cst 2015

buil number

rk3066-eng4.4.4 03082015. 17:30:37

cpu

armv7 1.6ghz (x2)

memory

1024

thanks
[MTCB Android Head Units Q&A] Qtop:
Hi,

I tried that. No light and also my phone doesn't charge.

Thanks
[MTCB Android Head Units Q&A] psychegr:
Then i guess that there is some problem with the usb power supply circuit. You have to remove your unit and have someone check the power supply line that goes to the usb ports.
[MTCB Android Head Units Q&A] hans109h:
Checkout the Malaysk rom. Most of us like it a lot!
[MTCB Android Head Units Q&A] Steve-Austin:
Hello,

Is there a way to swap the internal storage with the external?

With the new Tomtom GO mobile, the app installs only map on the first storage.

I tried to use link2sd and other stuffs but they can't see my SD card.
[MTCB Android Head Units Q&A] markastor:
Hi!

Anybody knows, how can I add more power to the USB ports at the back (KGL)?
[MTCB Android Head Units Q&A] rapita:
Sicne 2 days my GPS dont take signal, and every satellites are wit low signal, they change, between diferents numbers but the signal don't change to green at GPS Monitor. I don't touch anything on the unit, all it's the same from about 3 months, and I don't know because GPS don't take signal.

Anyone knows how solve this issue.

Thanks, BR
[MTCB Android Head Units Q&A] Major_Sarcasm:
How odd. I had this exact issue today trying to get satellites to lock. They did eventually but took ages.
[MTCB Android Head Units Q&A] themissionimpossible:
Check the GPS antenna connector, maybe due to the car vibration it might have become loosened.
[MTCB Android Head Units Q&A] jakejm79:
Why not just use a power USB hub?
[MTCB Android Head Units Q&A] abdoahmed79:
My Bluetooth module get burned and i removed it out by desoldering all legs, every things else working fine, do I have any options for external module if any how it can be connected with the unit?
[MTCB Android Head Units Q&A] Mr_Happy:
Did you use an usb-otg on that aswell??
[MTCB Android Head Units Q&A] royalhawk2002:
Yes I did. ..10 euros usb dongle connected to the usb....

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[MTCB Android Head Units Q&A] Mr_Happy:
Do you have a link (ebay or aliexpress i.e.)? , 'cause I can't find one that fits in between....
[MTCB Android Head Units Q&A] ktibor69:
You can find the link and how to do in the Adding DAB functionality thread.

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[MTCB Android Head Units Q&A] Qtop:
Hi,

I checked all usb ports today. Not one of them is working. So you are right about the 5 volt issue.

I will take it out and have someone have a look at it.

Thanks
[MTCB Android Head Units Q&A] psychegr:
I hope that you solve this soon. If any of my posts were helpful for you please dont forget to press the Thank you button on my posts.

Glad that i could help you.
[MTCB Android Head Units Q&A] CARRisma:
OMG, did I just read this?!
[MTCB Android Head Units Q&A] Mr_Happy:
found the thread, but there was nothing in it regarding osb-otg
[MTCB Android Head Units Q&A] psychegr:
What is wrong with this?

Is it against and forum rules to remind someone to thank a post? Or is it something that i did wrong?

Could you, as a sensor member, please explain to me?
[MTCB Android Head Units Q&A] ktibor69:
The linked DVB-T/DAB USB device is OTG device. I plug to the rear USB port, and I plugged also own made Powered USB HUB.

The rear and front USB port support the OTG device. I tried all port with DVB-T/DAB USB device, and work perfect.
[MTCB Android Head Units Q&A] Mr_Happy:
Didn't get that, thanks!
[MTCB Android Head Units Q&A] CARRisma:
Sure.... There's nothing 'wrong' with it. It's just, how shall I put it.... Sad?

I wonder how sad someone has to be for them to actively request a 'thanks' on here. But if if makes you happy.....
[MTCB Android Head Units Q&A] psychegr:
Oh really? Thank you for welcoming me on this board and you have these feelings for me and/or my posts!

You see i joined this board because i need some help to develop an application and at the same time i am willing to give my knowledge to other members.

There is a "Thanks!" button under each post and believe me i dont know how important this button is on this board, but being a member in many other boards that have a similar button, i know that this is really important as it helps many users to see if a post was helpful or not. Reminding to a member to "Thanks" a post is not sad or wrong for me, we are people and sometimes we skip things and that things sometimes might help someone else. Now if you feel that my posts bring you a "sad" feeling then you can just skip them and dont read them. And just in case you read any of my posts and seem helpful to you, dont press the "Thanks!" button, just drink some beer for me. It is the same thing for me.

This conversation is completely off topic and i prefer to stop it here. I hope you do the same.
[MTCB Android Head Units Q&A] CARRisma:
LOL. There, I gave you a thanks. Bet that cheered you up.
[MTCB Android Head Units Q&A] winner4:
What is the best choice for new android Head Unit now? Im using Seat Leon 1P and I'm looking for new radio. There are a lot of them, but I have a big dilemma what should I choose. These models from aliexpress for 240-260$ are a good option? I cant show links because I dont have 10 posts.
[MTCB Android Head Units Q&A] elhamy:
Focus on quad core rk 3188, 1 gb ram , 16 giga internal memory, 1024×600 screen resolution

If you you found a higher specs go for it btw new units are MTCD with 5.1.1 android version so most probably has no support in matter of custom roms etc... but the performance is very good
[MTCB Android Head Units Q&A] winner4:
I found on aliexpress head unit with RK1388, 1024*600 and android 5.1.1. for 297$. I dont know what is the hardware difference between 4.4.4 version but they looks very similar.

Are these 4.4.4. head units updatable to 5.1.1. or not? For me its very important to using OBDII adapter with Torque Pro and having no problem with battery draining (my old Erisin Head Unit had a lot of problems with battery draining).

And another question - what is the difference between all these MTCB, MTCD KYD etc? What is this.

And last - can I change the UI look or it depends on the radio manucafturer?

I like this one:

[IMG="First UI"]http://g02.a.alicdn.com/kf/HTB1Dr0BLXXXXXXvXVXXq6xXFXXXK/200699564/HTB1Dr0BLXXXXXXvXVXXq6xXFXXXK.jpg[/IMG]
[MTCB Android Head Units Q&A] elhamy:
I'm not sure of the hardware differences also but I noticed that many ppl were complaining from the poor quality of the internal mic and the radio reception which may have improved in new design , regarding the battery draining I'm not sure what you mean? as long as the car is running you should not notice battery draining!
[MTCB Android Head Units Q&A] winner4:
My previous radio damaged my battery when car was turned off and closed. All the time it consumed approximately 0.8A (normally about 0.02A). This resulted in a rapid discharging of the battery and then I sent radio for warranty and I received a refund. I will do not buy second time this radio because Erisin have horrible service and they are a big crooks (that's another story). I do not recommend.

So... Im looking for best head unit for my 2008 Seat Leon now :)
[MTCB Android Head Units Q&A] OneCheekyDevil:
I too have bad history with Erisin and wouldn't recommend them.

As for your battery draining, 0.8A seems pretty high. Did you check the wiring? Did you set the shut-off delay timer to more than the stock 30secs?

MTCD units are the new boards. Wouldn't know of any improvements with them as there isn't enough in circulation or feedback from those that have one.

The user interface is customisable as like with any android device - just install another launcher.
[MTCB Android Head Units Q&A] winner4:
Yes, 0.8A and battery was totaly disharged by night. 3 months no issues and then... something wrong happened and Erisin Head Unit did not working very well. Shut off delay was stock (I did factory reset etc).

Now I'm looking for some better stuff than this Erisin **** and I have got big dilemma because there are a loooot of similar looking head units but with another MCU and I really dont know what one is best worth to buy.
[MTCB Android Head Units Q&A] RADIOGUYNAVALL:
For Future android Operating systems you want minimum 2GB RAM . 1.6 Quad core Processor or better . That will handle future OS and future APP growth for Lollipop and beyond. dont be fooled by Lollipop units with 1GB RAM
[MTCB Android Head Units Q&A] elhamy:
According to my experience with MTCD units I think older unites are the same 1 gb is currently enough and the system is fast enough in matter of booting time and switching from one app to another
[MTCB Android Head Units Q&A] dark alex:
a) Does your other end not hear anythng or jus terrible quality? How do you know that internal mic is working? did you try to record your voice with any app?

b) contact your seller and ask for a firmware image to flash. just tell him it would hab in the boot logo and not come further after installing an App or something else. If they provide you with a firmware image you can flash it and please send it to me or paki (Thread opener) to upload to our repository for others. also to be serious I don't know which version the provided klyde rescue image is? Did you try to flash this from our repository?

c) This depends on your real issue...

---------- Post added at 12:04 PM ---------- Previous post was at 12:03 PM ----------

I don't really know nor did I test this but wouldn't it be enogh to use a 1.77 update.img and 1.86 mcu.img?

Even if things go wrong I would think there should be no problem on just reflashing...
[MTCB Android Head Units Q&A] crappy007:
a) the other end does not hear anything. I know the mic is working because I used an app mictospeaker. Also can I use voice recognition when entering an address.

b) will do. On the first page was stated that real soon an image will become available for Klyde, I am a bit afraid to use the repository from your repo because of the messages which state that the hardware buttons are not working anymore or the device is bricked.

c) let me know if you see some alternatives.

Many thanks for your help and support! keep up the good work. I think it is a great device which needs some effort on the software side. Hopefully they will fix the issues soon.

Regards
[MTCB Android Head Units Q&A] dcmouser:
There have been a couple of inconclusive posts about people upgrading to new firmware 1.86 and seeing some hardware keys on their unit change their functionality -- with suggestions to edit some gpio.kl keylayout file (that is not present on my hui fei that i can find in the normal keylayout directories).

I have not upgraded firmware, but I would love to be able to reassign some of the hardware keys on my unit (made for suzuki sx4 with front buttons labeled for MENU, NAV, AMS, EJECT, BAND, DVD).

I guess the main first question is, what keylayout file should i be editing -- i've rooted and looked in the keylayout directory and only the generic.kl file seems to have anything relevant.. I also tried some of the key inspector tools but they don't seem to catch the button presses..

Any thoughts?

Addendum:

I ran 2 Key Inspector tools -- they see the Power button and the mute button, but the others seem to bypass them completely and are unseen by them, so i can't see the scancodes.
[MTCB Android Head Units Q&A] dcmouser:
Follow up semi-related question:

I have replaced the built-in music player with PowerAmp, which is quite nice.

However, it looks like there is some built-in DVD player app that triggers when you insert a DVD, and it doesn't look like the DVD drive is mounted anywhere in the file system that another application could read.

Does anyone know if there is a way to just have the dvd be mounted somewhere in the file system where other tools could access the files on the dvd, instead of playing using the built-in music/dvd playing application?
[MTCB Android Head Units Q&A] agentdr8:
I don't believe Android normally supports CD/DVD drives, so it's something they built specifically to support this unit.

---------- Post added at 11:40 AM ---------- Previous post was at 11:34 AM ----------

You'll want to catch the intent action "com.microntek.irkeyDown" and check its intExtra for "keyCode".
[MTCB Android Head Units Q&A] coyttl:
It's probaby all controlled by the MCP - Android's 'video out' is hidden while the DVD plays - I bet that if you started PowerAmp playing, put a DVD in, played the DVD and then exited it, when the screen returned back to Android, PowerAmp would act like nothing had happened, and continued to play through that.
[MTCB Android Head Units Q&A] dark alex:
I guess you're right with your assumption except that.

I would rather believe that an overly is shown over the normal Android UI where only dialogs can come over.

Something like a video Frame. You can see that for example when you switch to reverse view. Then you see the notification bar disappearing with an animation.

So I think the MCU controls the video signal then sends it as a stream to a service app in android which then displays the stream within the overlay.

That means everything keeps fully running just overlayed while playing DVD or other video.
[MTCB Android Head Units Q&A] coyttl:
You're probably right - note that I don't own a unit (yet), but from what I understood about the MCU was that it controlled the audio/video mixing for final output to the speakers(amp) and screen. I wasn't aware that it fed the video INTO android to display in an app.
[MTCB Android Head Units Q&A] dark alex:
Well it's just waht I think as of my own impressions of the unit yet. I might also be wrong but that way makes most sense to me.
[MTCB Android Head Units Q&A] agentdr8:
That seems right, based on what I've seen in MTCBackView.apk, and MTCDVD.apk.
[MTCB Android Head Units Q&A] Boodro1:
I have a GS firmware model. Does anyone know how to get album art to display on this unit? Also is there anyway to black out the screen while driving so you don't get a bunch of glare off the windows while driving at night?
[MTCB Android Head Units Q&A] agentdr8:
I don't know if the MTC Music app displays album art. I ditched it in favor of Poweramp, which (IMO) is a much better music player.

Regarding screen off, I could probably add this to XposedMTC via remapped button.
[MTCB Android Head Units Q&A] illmatik:
This would be awesome. I was going to ask about this. Driving into work at 4AM even with the brightness low it can be a little too much.
[MTCB Android Head Units Q&A] typos1:
And maybe even a virtual button in the task bar as well ?

I ve seen some of these units with a "dim" button on the front, it is a bit of an oversight not ahving this function - most factory units that I ve seen have a unction that kills the screen.
[MTCB Android Head Units Q&A] agentdr8:
A virtual button would probably be a good idea too.

It might be something much easier for OEMs to implement once Android L is released with the new built-in Car stuff. They've done a pretty good job with these headunits trying to make JB work in a way it wasn't really designed to.
[MTCB Android Head Units Q&A] Boodro1:
Could you do the button remap where you hold one of the existing buttons for ~3 seconds to blank the screen but the regular button works with a normal press?
[MTCB Android Head Units Q&A] agentdr8:
Hmm, that might work. Will test it out and see if it's doable.
[MTCB Android Head Units Q&A] typos1:
Yes, thats a great idea ! "Home" would be best, I think, but I spose it could be any button the user wanted ?
[MTCB Android Head Units Q&A] DWhite456:
has anyone used the IR for a remote on these boxes? Is there a remote app you can use on your phone to control the HU?
[MTCB Android Head Units Q&A] coyttl:
Ah, that's very interesting. Noone had mentioned these APKs before.

This should mean that something's running and listening to a message from the MCU, and then opening a stream or some such to actually 'get' the video. This also means that custom apps could be run to listen to the message and do the same. (Dash-Cam recorder?)
[MTCB Android Head Units Q&A] winner4:
And what do you think about these new MTCD android 5.1.1. head units? Its very important for me to good working apps like Torque Pro and good sound quality.
[MTCB Android Head Units Q&A] elhamy:
Yes it performs very well , anyway the new boards will dominate the market like MTCB did
[MTCB Android Head Units Q&A] winner4:
What do you think about this unit?

http://www.aliexpress.com/item/WITS...69.html?spm=2114.13010208.99999999.261.1UIf9v

Price is very favorable but I dont know about it anything because its not very popular.

Or maybe better this one should be better? What do you think?

http://www.aliexpress.com/item/Pure..._7&btsid=56b6bd60-2b23-43cd-9431-b0b3fca90a41

I tought too about this one but it seems that this is not a MTCB unit (MCU starts with numbers):

http://www.aliexpress.com/item/Quad...62.html?spm=2114.13010208.99999999.294.hUEn3b
[MTCB Android Head Units Q&A] elhamy:
The first one is fine also witson is a known Chinese brand since windows ce units
[MTCB Android Head Units Q&A] winner4:
Do you think its MTCB? Its very important (because of custom roms etc).
[MTCB Android Head Units Q&A] elhamy:
Since it is running on kitkat we can't be sure I suggest referring back to the supplier
[MTCB Android Head Units Q&A] nrjdgn:
it is possible android 5.1 for these unit ??

http://www.ebay.fr/sch/i.html?_from...+5.1.TRS0&_nkw=autoradio+android+5.1&_sacat=0