yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] typos1:
Maybe you havent caught up with events in this thread for a while ? - There are lots of people on here with all versions, more the HuiFei/KGL and Klyde types, but still we have quite a few people on here with RoadMaster and GS versions, none are versions that "nobody has tried before". (And btw, the first company to sell these was actually Klyde, not KGL/HuiFei)

I cant recall anyone reporting a problem with RoadMaster units (these units have a branded amp ic, the exact same Toshiba one as the AN21-U in fact, whilst NONE of the other units have branded ics in at all, despite what sellers would have you believe - check out the pdf on the first page) or Klyde units, whilst there have been a fair few reports of problems with KGL/HuiFei ones.

These are all pretty much the same RK3066 tablet mounted in a double DIN case, they differ only in minor details such as dvd drive manufacturer, amp ic manufacturer, radio ic manufacturer, MCU manufacturer (and even then the code is very similar) and bluetooth manufacturer.

That last one might be of interest for you - if I remember correctly, I dont think either the RoadMaster or Klyde versions have the Bluetooth problems that the HuiFei/KGL and GS versions (GS versions seem to have the same Homescreen/Launcher as the HuiFei/KGL units).

Theres no reason for you not to see if either the Klyde, RoadMaster or GS versions are availabe in the size you want. For instance this type:

http://www.witson.com/en/displayproduct.html?proID=102184405

http://roadmaster.gmc.globalmarket....rsal-model-with-6-2-touch-screen-8251101.html

have started to appear lately and may be the right size.

All 4 companies make Toyota/universal units, one of those may also be the right size ? - I think Japanese cars use the smaller type.

Theres also this Klyde one for Chevy vehicles, all the Chevys it fits are Korean Chevys (basically the old Daewoo), its effectively just a double DIN sized unit so also universal, but as its for Korean cars it might well be the smaller size.

http://szklyde.en.alibaba.com/produ...ification_Car_DVD_For_spin_with_GPS_navi.html

Its a pity we dont have a list of how many people have got each type and how may of them have had problems, so we can see which is statistically the most reliable unit, but I m sure it would take days to go through 300 pages getting all the info :eek:

---------- Post added at 02:47 PM ---------- Previous post was at 02:43 PM ----------

Yes, was mentioned a few weeks back.
[MTCB Android Head Units Q&A] typos1:
The companies buy RK3066 tablets from Rockchip, ergo Rockchip makes the memory and motherboard, so we all know that as these are all RK3066 devices ! Klyde was the first company to sell these, not KGL, but NONE are spin offs, or copies or clones. A large number of companies buy motherboards from, for instance Intel and then go ahead and make pcs from them, the situation here is analogous to that.

And I m sure most people know that China has a reputation for copying (one of the reasons why when Rover went tits up, Honda got in their straight away to remove all their tech that Rover was using, so the Chinese couldnt get it and why GM blocked the sale of SAAB to Chinese companies). But China is starting to find its own way, starting to innovate itself rather than copy and these stereos are a perfect example - the Chinese most certainly lead the field in this area - have you seen the established well known Western/Japnese company's efforts at making a n Android car headunit ? ! - theyre laughable. And Google and Apple have only recently started to develop in this area. I dont think the whole copying thing really applies here.

The thread is 300 pages long, but we seem to have worked out (through various people's experience of buying all 4 types and Google - read the thread if youre interested) that there are 4 producers of these units and some elements of the software that are tailored for car use are so similar they may be one software company behind the lot, with each company buying their own tailored version from them. We may be wrong though, we have not actually been to the factory and seen them making them and I dont think you have either so they may well be lying about making anything !

I m a bit confused by you saying that they make the components though - the GS units appear from the photos/spec sheet at least, to have the same back panel as the Klyde units, with the KGL/HuiFei type Launcher/homescreen and the same specs as the Klyde units. This means SirfStar GPS chip, STmicroelectronics radio/amp chips, Freewing Bluetooth, Samsung RAM etc, clearly those parts are made by Sirf, ST, Freewing, Samsung etc ? (see the specs pdf on first page for more details of which unit has which component). So what "other" components do this Zest company say they make ? Maybe thats why they are so secretive with you, because all the other 3 companies specify what components their units have, pretty fully (although KGL doesnt name as many as the other 2 and both KGL and Klyde say they use one component manufactured by Philips (KGL) and one manufactured by Toshiba (Klyde) when neither do).
[MTCB Android Head Units Q&A] that_dood:
update

So I bought my unit off of eBay, and am not really sure what one I have. Anyway, the seller sent me to http://www.jewellet.net to update it. I bought one to look factory in my Mazda 6. Is there any software to add subwoofer control? I'm hooking one up tomorrow.
[MTCB Android Head Units Q&A] typos1:
To find out, do the same as with any Android device - go to settings/about and it will tell you - "KGL" for HuiFei/KGL, "KLY" for Klyde, "RM" for RoadMaster, "GS" for GS.
[MTCB Android Head Units Q&A] Gemok:
Steering Wheel Controls

Hi Guys,

I'm still struggling with the SWC. I'm starting to believe its not possible with the wiring I've got.

I've got a HuiFei/KGL with a KGL4 MCU I've just updated to 2.02 from the 1.93 it shipped with which added FIAT to the CAN BUS list in factory settings which should match the Fiat Bravo its fitted in.

Can someone with working controls on a CAN BUS car tell me if they have any wires in the key 1 and key 2 plug into the unit, they're empty in mine and I suspect they're needed for SWC or is it done off the rx tx wires?

link to the unit I've got : www aliexpress com/item/8-inch-Fiat-Bravo-2007-2012-dvd-gps-player-with-ISDB-T-DVB-T-Russian-Menu/612409853.html

Many Thanks

Gemok
[MTCB Android Head Units Q&A] staneb:
Which one did you buy, because I am also looking for one for my Mazda6 but there is none on ebay. Just Aliexpress has the units.
[MTCB Android Head Units Q&A] kaween:
Generally, Key1/2 wires are meant for "Resistive Learning" systems.

If your car uses canbus, the communication should run over the TX/RX wires. If your car is canbus compliant, the omnission of the Key1/2 wires is normal.
[MTCB Android Head Units Q&A] Gemok:
Ok I wonder why I can't get the controls to work ... is there a special way of setting the buttons in the steering wheel control menu? I've tried everything I can think of
[MTCB Android Head Units Q&A] kwalsh24:
I tried it the moment darkalex posted it, I have a VW model and it didn't play nicely with it, so I went back to the 1.99 and all is well.
[MTCB Android Head Units Q&A] optx:
I had once problems when i tested different navi apps. One of them (not igo) just worked, when i had the apk on the GPS card, and started the install from there. Maby it works for you.
[MTCB Android Head Units Q&A] kwalsh24:
I've tested tomtom, sygic, Igo, all I had to do is have the GPS source files in their correctly named folder on the GPS card and the apk installed into the system and everything worked fine.

Here are some photos to show how my GPS sd card is configured, The only one that was slightly more tricky to configure was Tomtom... I highlighted the path it uses as it is different from the rest..
[MTCB Android Head Units Q&A] ptclabs:
All as i can say to this is oh god you have no idea how china operates.Most of you had no idea who was making the units.Maybe a very few did. You definitely have no idea about their ability to copy something. Do I care who was first as something? not really just who can produce the best product. They are mostly inline with the product quality on the hardware. The software is where it is way different, and that at this point it is all that matters.

You can be as pissed as me as you want. It does not mean i am wrong. not trying to throw your train, but I have nothing to protect like the resellers looking at this. They can't speak Japanese so I do not care.

If none are spin offs or clones why are they stealing software from each other. Please... I have done this for many years, if your are someone from klyde and you actually made the first one congrants. You already knew where it was going. Your in China and you knew your work will be copied.I picked a maker that cared about the software. If you think you care about it more contact me. I will go with whoever can produce the best product. I do not care what name is on it. I care about giving a customer a product that works properly.

If I offended you by calling your radio a clone and you were actually the first producer that got the idea from a foreigner I apologize You should name your radio after him..
[MTCB Android Head Units Q&A] that_dood:
I grabbed this one cause I still wanted the sicstockk look
[MTCB Android Head Units Q&A] ProfessorKnox:
I had a look at your post and the link you provided (Note: struggled with the link unitl I detected that there are dots missing after 'www' and before 'com'). On the web page there is no picture about accessories. Maybe you need to explain in more detail what has been delivered to you.

Did you receive a CAN box? That's a box with the size between a match box and a cigarette box and the box is connected to the wiring between the car connector and the connector plugged into the connector named 'power jack' on the picture of the seller's web site.

If you want to use SWC controlled by CAN you definitely need that CAN box (I doubt the HU has CAN built in).

Neither in the technical specifications table nor the whole advertisement I found a reference regarding support of CAN.

Therefore I assume that the HU will be controlled by key1/key2 SWC.

If your car doesn't provide the key1/key2 wires but povides CAN then maybe you have a real problem with that unit.
[MTCB Android Head Units Q&A] Gemok:
The unit did come with a canbus box which I believe is doing something. As the standard wiring on the Bravo doesn't have an ignition on power supply only a permanent power supply but the Unit correctly powers on and off with the vehicle.
[MTCB Android Head Units Q&A] aluver:
Do you use original SD card shipped with the head unit? Did you try to check and format it on PC? What type of file system it has? Capacity?

Some guys have noticed one trouble on latest firmware versions - If SD card has more than a half free space - system cannot recognize it.

If you have other SD - you can try to copy all from your GPS card on PC to it and check how it works. Good luck!
[MTCB Android Head Units Q&A] optx:
I had Igo,Sygic,and Navigon running. Im using sygic atm. If tts would work with igo i would switch. Navigon is a nogo for me, GPS was most the time unstable..

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[MTCB Android Head Units Q&A] ProfessorKnox:
Does the provided harness with the CAN box have a two pole connector in the red+orange wire from car connector to radio connector then radio may go on/off controlled via this connection. so please open this connector and try again.

The key1/key2 wires may not be necessary when CAN is used.

The SWC settings menu doesn't have any functionality on my HU.

In line with CAN there is - at least in my car (Skoda Superb 3T4) and looks like also in your car - no longer an ignition controlled power wire, i.e. red wire has permanent power.
[MTCB Android Head Units Q&A] typos1:
Some cars with CAN Bus use resistive SWC, my Alfa does.

I saw a video the other day on youtube where someone appeared to not be able to get their SWC working on an Android headunit for the Bravo, here :

https://www.youtube.com/watch?v=7G4b9g1BIRw&hd=1

Did you get a CAN Bus interface with the car ? I m sure someone else had the same problem with a Bravo, maybe search the thread.

Parazit26 has a Fiat Croma, I think he needed a interface box to sort it, theres a possibilty yours may need the same thing.

On another note, I ve just discovered 2 DAB receivers that will work with Android, one connects either via aux in or via FM and comes with an Android app to control it via bluetooth and the other connects via usb to any device with usb and plays via "virtual mp3", a few people mentioned recently about DAB, thought they might find the links useful.

http://www.dension.com/product/dabp

http://www.dension.com/products/dbu

But I spose if youre using Wavesink this new GUI for the Plus version (pic below) might encourage you to shell out for that.
[MTCB Android Head Units Q&A] kwalsh24:
I havent gotten tts working in sygic yet, so havent had much time with it, both tomtom & Igo have the same issue with tts. Tts works, but doesn't mix. Seeing how the version of igo that came with the unit didn't work period with tts, the manufactures who are tweaking the software likely have no idea of the issue.
[MTCB Android Head Units Q&A] optx:
Sygic is working almost good with tts and mix. Music gets quiet when tts voice starts. Was setting mix to -4 since tts was louder then poweramp. After tts, device stays about 5-10 sec. longer in that silent mode,and then gets normal.

Edit : Can you please post or pm me your sys.txt for igo?

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[MTCB Android Head Units Q&A] kwalsh24:
Ill pm you my sys ffile, I havent modified it at all mind you. Ill also see if I can ssend you the tts voice files, as they were hard to find. Think I havd one or two that work
[MTCB Android Head Units Q&A] alsolh:
I just tried 2.02 with both MCU 2.02 and 1.86 MCU

Good:

Faster

Vpn option with no workarounds

Bad:

Bad sound quality and lots of static

Bad radio reception

So I got back to 1.86 with 1.77 kernel which is the best till now.
[MTCB Android Head Units Q&A] Gemok:
Sorry for the silly question how do you install just the 1.77 kernel?
[MTCB Android Head Units Q&A] agentdr8:
Mixing is controlled by the MCU when it senses audio output from a different AudioManager av_channel. When in Radio, DVD, iPod, or Aux, the av_channel is set to either fm, dvd, ipod, or line. When GPS TTS happens (as defined by the app selected in the GPS App setting), av_channel is set to sys, which is all sound output from the Android OS. At that point, it lowers the original av_channel output by whatever your mixing value is set to in prefs, plays the sys output, then restores the original output volume by the inverse of the mixing value.

If this isn't working right, then either MTCServer isn't watching the proper app process (this gets saved in the System prefs) or the MCU isn't getting the serial message to switch output channels and lower the existing channel volume.
[MTCB Android Head Units Q&A] ProfessorKnox:
Where can I find that module?

Thxs
[MTCB Android Head Units Q&A] Gemok:
http://repo.xposed.info/module/com.dr8.xposedmtc

You need the xposed framework too which I believe is in the play store
[MTCB Android Head Units Q&A] ProfessorKnox:
Thanks for your quick reply.

I have the Xposed framework aready installed as well as the XposedMTC module you linked.

According to pakidermo5000 I shall install "Xposed MTC framework app" in order to be able to assign functions to gestures (please see post #2988). But (actual version of) XposedMTC module doesn't provide such an funtionality. Thus either it was provided in an earlier version or another app was meant.
[MTCB Android Head Units Q&A] Gemok:
Sorry I didn't check the features :( this one looks like it'd do the job.

http://repo.xposed.info/module/ind.fem.black.rayyan.xposed.gesturenavigation
[MTCB Android Head Units Q&A] agentdr8:
I think paki referenced the wrong module. XposedMTC doesn't have any gesture controls in it.
[MTCB Android Head Units Q&A] ProfessorKnox:
[MENTION=4339055]pakidermo5000[/MENTION]: Is it possible that you referenced the wrong app? AFAIK XposedMTC app doesn't support gesture assignment and usage.
[MTCB Android Head Units Q&A] sprfly:
My issue is that it works if I have the SD card in the media slot but not the GPS slot. I'm trying to figure out how to tell if the slot is bad. Like I said when I put the card in the GPS slot I get no notification or anything. When I remove it I do though. Also the card when in the GPS slot does not show up in the file browser but if I go to storage under settings it shows up and i can unmount and mount it. It is the card that came with it. I have tried reformatting it (fat32) but no luck, still just works in media slot. I am still on v1.77 that it came with. I tried doing a factory reset from settings but it did not help either all I accomplished was loosing apps that I forgot to back up.:(
[MTCB Android Head Units Q&A] kwalsh24:
Hmmm so do you think there could be a possible xpose hack to resolve this?
[MTCB Android Head Units Q&A] agentdr8:
I think the first step would be to figure out what is causing it not to mix; is it not properly saving the gps app package to the system prefs? Is it not able to monitor the foreground processes for that app?

Which unit do you have btw? From what I can tell, if you have a RM unit with an MCU version that starts with MTCB-RM1-, gps mixing is forced off for some reason.
[MTCB Android Head Units Q&A] kwalsh24:
I have a kgl, everytime I flash a firmware I do notice tthat by default GPS is on switching. Not mixing, so my gguess is maybe they are aware of some issue with thd mixing so they have it default to switching.

How would we be able to figure out whag you mentioned?
[MTCB Android Head Units Q&A] agentdr8:
Let me see if I can throw together something to do some validations.
[MTCB Android Head Units Q&A] kwalsh24:
Cool :) thanks eh!
[MTCB Android Head Units Q&A] kavo77:
iGo Memory Error

Hi,

Does anyone have issues when installing iGo with a memory error just after it says readin IMEI?
[MTCB Android Head Units Q&A] sprfly:
Guys I'm in need of some help. I thought if try updating to see if it fixed my issue with the GPS card slot. So since the GPS slot is not working I first rooted and then copied the 1.86 MCU and 1.99 firmware update to /mnt/sdcard and rebooted. It found it fine and I thought it was working ok but then it's says it failed and is now frozen on this screen:

No amount of button presses or anything works. What do I do. Was I meant to do the MCU and firmware one by one and not at the same time since they are different versions. Do I just pull the plug now or what?

EDIT: I ended up just pulling the plug. I got rid of the MCU update in the sdcard folder and just left the update.img in there restarted and that updated. So then I got rid of the update.img and just left the MCU.img in there and rebooted but nothing happened. Do I have to do a full 1.86 update MCU and firmware and then just do a 1.99 firmware update in top of it? Also, GPS slot still doesn't seem to be working after 1.99 firmware. It still tells me if I remove it but not if I put it in. I'm beginning to think the slot is bad :-/

EDIT Again: I just tried 1.86 for both MCU and firmware. It does it's thing I go into settings to check MCU version and it's still saying 1.77 what gives?!
[MTCB Android Head Units Q&A] kwalsh24:
You have to flash the MCU file in recovery if your doing it on its own
[MTCB Android Head Units Q&A] sprfly:
I don't have the front USB. I just tried doing 1.86 for both the MCU and firmware and then I was going to just do 1.99 firmware. But when I tried to go to 1.86 it doesn't look like it does anything. I say yes to installing the update and it reboots into recovery and goes through the whole install but then when it reboots again it asks if I want to update again so I say no because I just did it. I then check the MCU version and it's still at 1.77. I think the GPS card slot is bad though. The only action it is recognizing is the card being removed.
[MTCB Android Head Units Q&A] kwalsh24:
You don't need a front USB port go go into recovery, I've updated the mcu on my unit alone a few times, just a matter of hitting the power and reset buttons at the right time
[MTCB Android Head Units Q&A] sprfly:
Ok I will give it a try. Is there anyway to see if the firmware update is successful? Like will it say 1.99 somewhere it something?
[MTCB Android Head Units Q&A] kwalsh24:
It will say the process on screen, and then yes in the system status you'll see the MCU info change
[MTCB Android Head Units Q&A] sprfly:
I know it should for the MCU. I'm wondering about the firmware though. Because like I said I thought I had successfully done 1.86 for the MCU and firmware but then it still said 1.77 for the MCU so I was just wondering if there is a way to confirm both.
[MTCB Android Head Units Q&A] kwalsh24:
Here are photos of my units info, firmware and mcu
[MTCB Android Head Units Q&A] sprfly:
Everything matches except the MCU update will not take for some reason. I flashed the 1.99 firmware. Then I got into recovery mode to update the MCU. It does it's thing and then reboots. I go into the about screen and it still says 1.77 for the MCU version :confused:
[MTCB Android Head Units Q&A] kwalsh24:
Hmm, that's definitely weird, as that's all I've ever done to update the mcu and its always updated for me... not sure what else to tell ya
[MTCB Android Head Units Q&A] sprfly:
I don't know why it made a difference but I did a factory reset from the settings menu and then went into recovery and flashed the MCU and it took this time. So I am on 1.99 firmware and 1.86 MCU. Do I need to go to 1.77 kernel? Thanks for the help by the way.

Still no luck with the GPS slot; it won't recognize that there is a card in there. It notices when it gets removed but not when it's put in or in there ugh. Maybe i just need to send it back. I finally just got the seller to issue me a decent partial refund and agree to send me a new front panel with the correct buttons like were in the listing. All in all I only paid 225 for it. But it's gotta be a hardware problem I would assume. If I knew for sure it was just a bad SD slot and not something deep I would just get a new SD slot and solder it in myself but I am not 100% that that will fix the issue.
[MTCB Android Head Units Q&A] kwalsh24:
Well, I found one 1.99 that if you download via playstore the wifi doesn't drop out, any large downloads in browser mode will, so its up to you, I may do 1.99 firmware/mcu then 1.77 kernel.

Haven't read up much about mixing mcu files and firmwares, so not sure why the mixing that you're doing, but experiment away lol
[MTCB Android Head Units Q&A] sprfly:
I got it from the very first post. It says that the best combo is 1.99 firmware, 1.86 MCU, and 1.77 Kernel.
[MTCB Android Head Units Q&A] kwalsh24:
Hmm interesting, never tested that combo, just ran matching mcu & firmware
[MTCB Android Head Units Q&A] optx:
Thx for the files [MENTION=4036493]kwalsh24[/MENTION], will test them later.

I have also no wifi drop outs anymore since 1.99.

I did download maps for Navigon on 1.99, and that was more then 500 MB. Not a singel breakdown....

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[MTCB Android Head Units Q&A] kwalsh24:
No problem, glad you got them! Let me know if you want the apk & data files to go with the sys file. I can archive then up and upload them to gdrive

I had drop outs when I would download out side g-play. When I tried to download the svox tts voice data files it would drop out, and that was doing a 15meg download. I haven't tested it since the flash to 2.02 then back to 1.99 however
[MTCB Android Head Units Q&A] sprfly:
Does bluetooth auto connect work for everyone? Also, when the stereo first sees the phone it shows the name of the phone but after it connects it just displays the phone name as a bunch of zeros. It won't auto connect either; they are connected, turn off bluetooth on phone, turn it back on sit awhile, nothin. I have to manually reconnect them.