yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] nexgen10:
I'm willing to bet the same people who coded the MTU are the same people who compiled the kernel.

The cold boot time is in the 30 seconds range. There's a small video in folder I shared earlier of the boot time. If people are that hung up on boot times, then go get an automotive UPS and wire it in so you never have cold boots.

As far as removing the chip, I didn't have the nuggets to take it out of the sodimm socket. As for your idea about upgrading, I think it would be feasible however the SoC would have to come from the same MFG. They prob. make the SoC in a SODIMM form factor so they can universally bolt it into any model they choose to make. I doubt any other manufacturers use the same pinout on the same pcb.

---------- Post added 1st May 2014 at 12:00 AM ---------- Previous post was 30th April 2014 at 11:56 PM ----------

You have to understand how the game works. They aren't interested in 1 or 2 or 3 unit orders. That's what the aliexpress sellers are there for. If you want 5, then they will start to play ball. I actually prefer working with vendors who have MOQ's that high. It shows an operational maturity level of the company is high. It takes the same bandwidth to sell 1 unit than it does 5 units. Single orders aren't profitable and they dont want to waste the mfg resources on something thats not going to generate a measurable profit.

---------- Post added at 12:20 AM ---------- Previous post was at 12:00 AM ----------

The silkscreen reads MTC RK3066 Rev 0.3 , which furthers my belief that the same people who made the MTU are the same people who make the kernel, as they also appear the be the same people who made the SoC.

---------- Post added at 12:28 AM ---------- Previous post was at 12:20 AM ----------

If we can crack the MTC nut, then I think compiling kitkat shouldn't be hard, if the source is available.

http://www.techknow.me/forum/index.php?topic=5379.0

I'm also thinking about the screen resolution. I highly doubt the screen res is limited by the lcd panel. The source was likely just compiled for that resolution to support the crappy 7" tablets that use the RK3066 so often. The RK3066 supports 2048x1536 max resolutions.
[MTCB Android Head Units Q&A] ChillyCat:
After 35+ years as a Mfg Rep in the 12V industry....... I think I know what you're saying.

This type of OEM knockoff product.... just not the kinda thing anyone in our industry has

direct contacts with. I become a hunter in the common pool of seekers.

Hell...... any brand i've ever rep'd, a HU like these would run 1000+ dealer cost
[MTCB Android Head Units Q&A] nexgen10:
If these are good quality, im planning on importing them en-mass to resell. I really want to get into distribution, and have reps push them to the local car audio shops. That's the ideal plan anyway.
[MTCB Android Head Units Q&A] ChillyCat:
There's always gonna be a market. Especially with good OE looks, and one's maintaining the asthetics of the vehicle.

Problems representing such a line are many: inventory/repairs/returns ..........and cash flow. Tough enough

brokering quality Japanese electronics, can't even imagine having to deal with a 10-20-30% defective rate.

[which is quite common these days with products off the mainland] The whole 12V industries a different

ballgame than the one I entered in the late 70's. With the big-box guys selling at margins they are.....just not

much meat left on the bone. It's a tough biz.......but nothing's wrong with giving it a go. You just might hit

a niche market, that's really NOT being sought after, by the big boys

GOOD LUCK !!!
[MTCB Android Head Units Q&A] nexgen10:
I'm no stranger to the game myself. I've been running a network appliance business for 6 years. Our products are made in Taiwan, though our ODM is very good and our failure rate is less than 1%. This market in inherently different though. It's commodity based, but since the market is dominated by the likes of Pioneer and Sony and their retail rates are so high, it does leave room to charge $550+ per unit to the general public.

---------- Post added at 01:35 AM ---------- Previous post was at 01:32 AM ----------

http://www.enclustra.com/en/products/system-on-chip-modules/mars-zx3/

http://linuxgizmos.com/sodimm-style-com-runs-linux-or-android-on-2w/

The sodimm socket design seems to be pretty popular.
[MTCB Android Head Units Q&A] ChillyCat:
Sure does. The dealer cost of a "real" oe video/dvd/gps unit with maps = $2K+

Should have NO problem selling these "knockoffs" for minimum $1250+ installed.

[canbus being the only pain in the ass....as i've experienced]

A sharp hustler "could" make some serious money .......... just need to capture the audience.
[MTCB Android Head Units Q&A] Reptile-X:
Thanks for your suggestion, I could do that indeed but unfortunately I can’t find any good looking widget for GPS speed, the two I have are not that great.

First I tried this:

https://play.google.com/store/apps/details?id=it.opbyte.odometerwidget

I even got the paid version on my phone to get rid of the background en set the text color, but the problem is that I can’t download the APK of paid version, since it is not available for our units. I got the free version on the HU with apk downloader.

Second I tried this one:

https://play.google.com/store/apps/details?id=de.meditgbr.android.tacho

Widget works here too, but it is 2x3 and not customizable.

I am all ears if someone has a good GPS widget for our HU’s.
[MTCB Android Head Units Q&A] typos1:
Hello, if you read the first few pages of the thread your ll find out how to identify which unit is which just by looking at some pictures.

There is no problem with links on any XDA forum, you just have to have posted at least 10 times before youre allowed to post them.

---------- Post added at 05:32 PM ---------- Previous post was at 05:27 PM ----------

Why dont you get the apk off your phone and sideload it to the headunit ?

---------- Post added at 05:53 PM ---------- Previous post was at 05:32 PM ----------

Oh, sorry to hear that, I thought it was only bad in the rain ?

Did you take the top off to see if there was a problem ?
[MTCB Android Head Units Q&A] agentdr8:
It seems there's a conflict somewhere in the mode switching. I think it's the code I put in to handle the Aux/Line-In. I'll be doing some debugging this weekend on it.

Much appreciated. Thanks!
[MTCB Android Head Units Q&A] Reptile-X:
I have had bad experiences with apps which I bought and grabbed from the phone and install on other device in past, even on same account at both devices.

But thanks reminding me again, so I did grab the paid version of Drivers Widget – Speedometer and could install it on the HU and disable the background, but like I said before the thing is I need better looking GPS speed widget.

For example, this is one of the widgets from Drivers Widget, 2x2 it has ODO meter too but I don’t want the ODO meter information:

And here the other widget from same app, also 2x2. See the empty space which is just sitting there, I would love to use this one but as 2x1 widget and have some space for another 2x1 widget:

With other words, I am just too picky with this kind a things I guess :o
[MTCB Android Head Units Q&A] ColumbusTouareg:
Do you or anyone else know on here know anything about the canbus for the VW. I have the KGL 7402 unit running 2.01 firmware from the manufacturer. I'm having errors in my canbus with this radio hooked up. Its also causing an issue in my instrument panel to where i cannot see my level of my air suspension now. The unit isn't too bad and still working out the kinks but it's starting to frustrate me since it's messing with other settings on my Touareg.
[MTCB Android Head Units Q&A] genius312:
My goodness !

I really was about to buy a unit (only found a KGL with all the features needed)

But I have been reading all the posts for the last 30-40 pages and WAOW they have a LOT of probleme !

They all seams to be fixable by now ...

I alrready have a Mic installed in my car so I will use the same.

So cuting the internal mic will fix this issue (from what I have read. dnts seams to have found a beter way but a little complicated, if only cutting the internal mic works, this is perfect)

But I have read the sound quality is poor, I have a good sound system all pioneer with no subwoofer and I do not really want to loose quality !

Headunit starts to have problem with right speakers to eventualy stop working completly.

Radio signal is really poor.

Is there anyone that know a seller that sells good device ?

Roadmaster seams to be the bests, but I cannot find any.

I see all the one with probleme here are with kgl, and some on KLD which still seams to be better !

I think those who bought good device should be tagged on the first post !

Because right now, this is a big mess !

We need to buy a KGL, KLD, RM or GS to be sure it is rootable and fixable, but they all are crap !

I now there is one other thread regarding a un21-U, but they are even cheaper then the one here !

If there is any other rootable better device, that might be good to know too !

Thank you very much,

Martin L.
[MTCB Android Head Units Q&A] agentdr8:
http://www.vogella.com/tutorials/AndroidWidgets/article.html#overview_widgets

Seems pretty straight-forward to make a widget. I haven't done it yet, but I think a speedometer widget would be easy enough to handle. Maybe if I have some spare time I'll give it a try. Since I'm already using the XMTC Service to handle the GPS location updates, I could use that to also update a widget on a higher frequency (like every 1/2 second) for speed display.
[MTCB Android Head Units Q&A] SkyBehind:
Here is the link for all the MCU and Firmware versions, including the GS 2.02

https://drive.google.com/folderview?id=0BxmzvLRI7-eNeVA2SWkwM1pLZ28&usp=sharing
[MTCB Android Head Units Q&A] typos1:
Search for Roadmaster using Google or on Alibaba or Aliexpress, their model range is more limited than the others though.

At least the Klyde doesnt have the speaker blowing problems of the KGL and as far as I m aware only Skitals has had radio reception problems with a Klyde.

---------- Post added at 10:18 PM ---------- Previous post was at 10:14 PM ----------

No youre not being picky, youre just trying to get what you want, nothing wrong with that.

Nova should let you resize widgets.

Or take agentdr8 up on his kind offer of making you a speed widget.
[MTCB Android Head Units Q&A] Reptile-X:
Thanks agentdr8, I just decompiled the apk of the widget app I got above, but I didn’t do any coding since 15 years, I could change the text color but the widget size is hard to get, besides I don’t have the time to study to get everything.

It would be great if you could make something work with a transparent back ground and selectable text color.

---------- Post added at 11:20 PM ---------- Previous post was at 11:19 PM ----------

;)
[MTCB Android Head Units Q&A] genius312:
Roadmaster

This one is roadmaster 1.6ghz 1gb ram ddr3, but an21-u ...

I might have missed something!
[MTCB Android Head Units Q&A] typos1:
The link you posted doesnt go anywhere. nothing happens if you click on it.
[MTCB Android Head Units Q&A] genius312:
Ho, it was from aliexpress app !

Well anyway, roadmaster are to expensive!

If you guys think klyde ate the way to go, I'll go that way !

But we've seen klyde radio signal issue.

Ans there is no ext mic on klyde's, so i hope the internal muc is good enough!
[MTCB Android Head Units Q&A] typos1:
Its the HuiFeis that dont have an external mic socket unless you ask for it, the Klydes come with an external mic socket.
[MTCB Android Head Units Q&A] dmandn:
Oh ok, didn't realise that:P. As for the pics to identify the radio, none seem to look the same. I think the klyde is the closest from the pics though.
[MTCB Android Head Units Q&A] typos1:
I still dont know which item youre talking about, links from the ali app have worked before, can you post the correct address or the item number ?
[MTCB Android Head Units Q&A] genius312:
I see a lot of kgl with external mic : http://m.aliexpress.com/item/1580294879.html

This kld which seams to be very common does not come with external mic : http://m.aliexpress.com/item/1864323576.html?productSubject=Pure-android-4-2-OS-Capacitive-Touch-Screen-Universal-Car-DVD-Player-Audio-Video-System-built&productId=1864323576&tracelog=wwwdetail2mobilesitedetail

I fixed the link above for the roadmaster an21-U
[MTCB Android Head Units Q&A] ProfessorKnox:
I can follow javalada's feedback. You need to read ads VERY carefully. It (just) states 'WIN 8 UI' but NOT 'WIN 8 OS'. In details it has (just) an WIN 8 like user interface.
[MTCB Android Head Units Q&A] Charles83:
Thanks a lot. I've been able to root the device and install xposedMTC.

However I still have problem with parking sensors and 2 way canbus communications.

Just a couple of questions: did you connect key1 and key2 wire on your device?

What was your former unit installed on your Passat? Did you need to reprogram something via vag com in order to have everything working?

Thanks again

Carlo
[MTCB Android Head Units Q&A] ProfessorKnox:
Thanks for the link. But it seems for the KGL builds the provided MCU is 'KGL4' only. I would need to have 'KGL' (i.e. w/o a number) otherwise hard key assignments do not fit with my HU.

Do you have an idea, where to get other MCU builds ('KGL', 'KGL1' ... 'KGL6') from?
[MTCB Android Head Units Q&A] typos1:
The Roadmaster AN21-U must have a typo in the listing as if it is an AN21-U then its is dual core 1 ghz.

As for external mics on the Klydes, just because the listing does not mention one does not mean it doesnt have one, I was under the impression Klydes had ext mic sockets as standard, mine comes today, so I ll soon find out !
[MTCB Android Head Units Q&A] dmandn:
This is the one I was looking at:

http://www.ebay.com.au/itm/8-Androi...6589434?_trksid=p2047675.c100005.m1851&_trkpa rms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3 D20140106155344%26meid%3D444651c7ef9940b7ad4698d87 637bb57%26pid%3D100005%26prg%3D20140106155344%26rk %3D1%26rkt%3D6%26sd%3D151253140210&rt=nc

Is that link working, if so any ideas which that is? (I like the 1.6ghz dual core and that dial/knob-free face plate).
[MTCB Android Head Units Q&A] Reptile-X:
I have managed to change one of the existing widgets, coding is like riding bicycle I guess, not that I know a lot anymore, but still enough to recognize things.

Got rid of the empty space but I had to use a background image for the widget with “km/h” text in it, that way I could keep the Speedo numbers big as I can and also green indicator is in there for GPS reception.
[MTCB Android Head Units Q&A] typos1:
Thats probably a GS, because it looks like a KGL, but has a spec sheet that is the same a a GS (which appears to be incorrect as some work ptclabs did a few weeks back suggested that at least one component was the same as the KGLs)

---------- Post added at 02:05 PM ---------- Previous post was at 01:59 PM ----------

Skitals said he had bad radio reception in the rain, so that might be another issue.

I wouldnt say the fact that the colour of the LEDs cant be changed was an "issue" - colour changing LEDS are not something Klyde does,only KGL and GS do them.

---------- Post added at 02:06 PM ---------- Previous post was at 02:05 PM ----------

Nice work, glad you got it sorted :)
[MTCB Android Head Units Q&A] genius312:
True, color changing and not coming with canbus are not issues, canbus can but but seperatly .

For radio reception, this must not happens !

What about the sound quality ?

Can you both post the link of your klyde I'd they are universel 2-din ?

I think i have read the fan was noisy too! !
[MTCB Android Head Units Q&A] burton123:
messing up instrument cluster

Hey Guys, is there any other VW owner that experienced problems about their instrument cluster? and any solution?

My understanding is the with the OEM head unit, you can see navigation commands and radio information on the cluster. Also when you change the time from the cluster, it gets changed from the HU and also from the compass display at overhead console. So the head unit - instument cluster and compass are connected by somehow (CANBUS). When we install KGL, seems like it masses up the instrument cluster and compass.

Is there any other forum member that experienced the same issues?
[MTCB Android Head Units Q&A] dmandn:
Ok typos1, thank you for the reply. Would like to say it was helpful (well it was) but now I'm confused more :P I haven't seen anything about a 'gs' before.
[MTCB Android Head Units Q&A] genius312:
Regarding the way I get replies from Klyde, this really is the unit we should get !

For me, I prefere lacking light color/dimming then mic/radio/speakerblowing, ect that everyone gets from KGL

Radio reception, is it is only when raining, I could switch from A2DP bluetooth and this moment.

And for the fan noise, that is a problem but not a big one I guess.

I will wait new from you typos1, let me know if your unit is a good one and where you bought it.

The one I am thinking of now is this one: AliExpress Klyde

Martin L.
[MTCB Android Head Units Q&A] agentdr8:
GS or HotAudio. They are yet another variation found in the MCU version string. I have one and it seems to be as decent as all the others. I wish it actually had tri/quad color leds like my KGL though (my GS can only do white or green).
[MTCB Android Head Units Q&A] genius312:
Agentdr8, from your point of view, which device would be the best choice for the price (Roadmaster seams to be too expensive).

KLD or GS ?
[MTCB Android Head Units Q&A] agentdr8:
I don't have any first-hand experience with the Klydes, so I can't comment on them. But my GS was significantly cheaper than my KGL, and seems to function just fine (minus the led issue). Mind you though, neither of my vehicles have canbus, so my installation is more of the universal variety.

I would say you can't go wrong with either, given that you receive a well-built and tested unit. QC/QA doesn't seem to be the best, so if you get a lemon, it's better to know sooner than later so you have a chance to return it or get $$ off, depending on the severity of the issue(s).

I think one of the members here (Hak? webdude?) was working on trying to get their own headunit manufactured, using higher quality components and more standardized software. If that ever came to fruition, I think they'd have a winner on their hands. That's assuming the price is still within what most people consider reasonable. But until that happens, these headunits will suffice.
[MTCB Android Head Units Q&A] SkyBehind:
I have a GS. LED doesn't change color, it's only blue. Also the illumination doesn't work, only stays on for a few seconds when attempting to change color.
[MTCB Android Head Units Q&A] agentdr8:
The leds should only stay on full-time when your running lights/dash lights are on. That's controlled by the illumination wire receiving 12V.
[MTCB Android Head Units Q&A] cadillackid:
is there anywhere a good list of what 3G dongles are supported on the KGL? seems i see all kinds of people trying various things yet no one follows up as to whether their various device works or not..

im trying to source something in the USA that will work in the USA.. many of the devices i seem to find are no longer available or have no idea if they are compatible..

I know I know i shouldve ordered one with my unit, but i didnt.. and now im trying to source one without crazy amounts of shipping from china...

seems that its not a cut and dry solution for any Huawei chipset device to work.. and the frequency ranges on some I see would only allow it to do 2G speeds which isnt going to work for me.

ultimately Id like 4G LTE but i dont think any device exists for that from what it seems

the trouble with a WiFi hotspot is yet another device to turn on when I start the car.. (I have 2 hotspots and neither turn themselves on when power is applied to them). I want this to be as seamless as possible without having to start up a bunch of devices just to go drive and have music, maps, etc..

-Christopher
[MTCB Android Head Units Q&A] V_Nice1:
I am confused as well... Long time lurker on this thread and finally decided to participate. KGL, Klyde, GS, RM, Hot Audio and several others, the physical differences are truly only understood by a few veterans here on this thread.

Even after spending a least 2 month toiling through 400 pages, countless goggle searches, YouTube videos, and saving at least 22 post links from this thread that might help me when my unit arrives. I am still just as confused as Newbies about the differences in the units and combinations of the different firmware and images...

This thread is massive and complicated to most readers except only the technologically savvy and experienced developers. Readers are not being lazy and not referring to the OP to find their unit, its just more complicated than those photos therefore leading to countless post/links of people asking " what kind of unit is this".

Myself, I have a 2010 Saab 2.0T Convertible. There are no specific units for my car therefore I have purchased a universal 6.2" one. Ebay 131230433783. "What kind of unit is this?"

I guess not having a car specific unit is good because I have the choice between kgl ,kyld, RM, GS, etc. universal models?????

I have preordered/received my can bus, leads, harness, and other adaptors based on reading countless Saab forums on top of this one.

Just waiting on my unit so I can hopefully contribute input and information to this thread.
[MTCB Android Head Units Q&A] Reptile-X:
I am using Huawei E1750 since 10th of September, pretty happy with it, no settings needed, just plug and play. No signal drops till now with 2.03 FW, we do have good signal coverage around here, it is not 4G but fast enough for most things like Tunel-In radio app.

I connect it with a 3 meter USB cable above the roof liner.

I got it from eBay, 26 USD with shipment:

www.ebay.com/itm/201129531935
[MTCB Android Head Units Q&A] Skitals:
It says right on the ebay Item Specifics "Brand: GS"

HOWEVER, that is not the GS launcher and the back panel is nothing I have ever seen before. The Bluetooth app pictured is also not the GS BT app, looks more like the Klyde BT. And it's definitely not a Klyde because it has multicolor LEDs :laugh:

Unless you buy one with the tell-tale indicators (photos of the back panel are most conclusive, IMO) the only way to know is wait until it arrives and see the software revision it is running. It seems like there are a million small factories selling a million different variations of the same unit.

Edit: Looking at the reference pdf on the first page I see that's the Roadmaster launcher. Roadmaster is also the only manufacturer that has surface mounted AV inputs/outputs instead of breakout cables, although your unit looks much different. But given those two factors, I'm pretty confident it's a Roadmaster :)
[MTCB Android Head Units Q&A] HaKyLON:
Ok but this is the only one solution ?

My connects on all BT Parrots or VW stock and all sync !

500$ and I must pay again for an App and a Mic ?

thats not cool

Anyone Got a Sync Problems ? Or Radio RX problems ?

Mic problems are common i can see ...
[MTCB Android Head Units Q&A] agentdr8:
The MCU firmware also affects the led status. Some versions seem to alter how the MCU handles the illumination wire. Might try upgrading/downgrading to see if that resolves it.
[MTCB Android Head Units Q&A] V_Nice1:
Thanks for the reply Skitals,

LOL, as I was reading your reply 1st I thought it was a GS, then I thought it was a klyde, then read your edit only to see its a roadmaster................. maybe? GS launcher, Klyde BT, and RM input/outputs! Its a hybrid! See how confusing it could all be....

Well if I am lucky enough to have ordered a Roadmaster (which everyone claims is expensive but I paid $300 make your offer price ebay). From memory of this thread I believe most claim it has the least amount of problems, but what are they?

I wonder if Klyde, RM, and GS should all be separate threads to streamline things little more...
[MTCB Android Head Units Q&A] cadillackid:
are you using that dongle in the USA?

-Christopher