yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] ptclabs:
Well any usb cable hooked to the android and not to the mcu will work over adb. I have not tried since I put on KGL on the GS. I have noticed a lot of things that were familiar with this rom. I have also changed so much crap in the database to get it to do what I want it would be better for someone else to try it to make sure it works without some sql knowledge., but yes it connected for me. I really didnt know when I changed the flag in the database it was on until I found the menu with the check mark init. I enjoyed typing on a keyboard rather than a screen for a while. I will see if it still works tomorrow since it got reset.......again.

The rom looks to me as it started as the same one many chinese tablets use such as iRulu and many others. Most the apps seem to be just added on top of that base. They have set a default profile (that is why you don't get the complete set up menu when you start it) that has most of the changes to make it "work". I would love to think of a way to delete that profile and start over, but I am not smart enough to figure out how to do that. The chinese tablets were and still are a little strange about usb. Most do not charge through them, but yes the bridge works on them.

I may make a profile on my kids 7" and copy it and see if it still gets overwritten.If it doesn't, I win. I might lose that fight though. It seems pretty determined to keep its settings. Some even override the profile settings I have found. I think it may work as after adding a second user, it resorted to being a tablet. Which is my desired effect. A tablet hooked to a mcu. Everything still works, but I can make it do what I want it to. Not a radio that only does what it wants.It did drag along setting still though, It is annoying.

Look up some free apps like hidden settings. You will find the developer menu. Hit thanks by the way.

If we could talk the developer of the car service app into adding all the other buttons on the front of this thing to do what we want...........................................that would be great. Challenged......

Since I plan on marketing these, I am not really too afraid to break one, so I screw with it much more than normal people. This would be so much simpler if we could just extract the rom in a normal way, Maybe someone much smarter than me here has figured out how to do that, I sure have not.

They are trying so hard to protect their work, it really does not matter. In the end it will get stolen by their own employees anyways.
[MTCB Android Head Units Q&A] illmatik:
Share two accounts in Google Play

I was hoping you guys could help me out with a little problem I have w/ Google Play Music

I stream and locally cache all my self-uploaded music to Google Play Music. It works great. At home I download new content, it's automatically synced to Google Play Music and immediately available to me in my car.

Yesterday, I had the bright idea of adding my girlfriend's google account into Google Play so we can access her music library as well. Unfortunately the app is designed to delete all cached music when switching between accounts in Google Play Music. The app doesn't warn you that this is going to happen when you add a second account, but it does warn you when you actually toggle between them. I confirmed all my cached music is gone as I switched back to my account, checked off "Downloaded Only" and it was empty :*(

This sucks. I'd really like to be able to stream and cache both of our libraries. Toggling between them is no problem, but the libraries getting deleted is.

Do you guys have any ideas or workarounds for this issue I'm having? My first idea would be some kind of xposed module to prevent Play Music from doing the deleting. I also thought about using an alternate app when streaming her library.
[MTCB Android Head Units Q&A] Skitals:
My GS is TEF6604/6624 from the factory settings. When I change it to TDA7706, I don't pick up and radio signals at all, not even static.

Based on that, I canceled my order for the KGL and ordered a Klyde. I definitely want a different radio IC to see if it works better with my antenna.
[MTCB Android Head Units Q&A] typos1:
Very interesting post.

I thought it affectively as a tablet hooked up to an MCU, what things have been disabled and what things have you now enabled to get it to do what you want ?

He is on here, I dont think persuading him will be a problem !

Well, either they already have been and thats what the GS units effectively are - KGL copies. Or the Indian developers you mentioned previously (and have been mentioned before) are behind the lot and all 4 manufacturers (KGL, Klyde, Roadmaster and GS) buy the hardware from Rockchip and then go to the developers for the software, with or without differences depending on their needs (Roadmaster have gone to the trouble of making their own app and 2 launchers, KGL have their own launcher, Klyde their own). The GS and KGL firmwares look the same and are interchangeable as youve discovered, but have different MCU versions, if someone was simply cloning the KGLs then I d have expected them to copy everything including the MCU, that way they wouldnt have to go to the trouble of doing their own updates or messing around writing different MCU code, they could simply use KGL's, so maybe this is just the "standard" package bought from the developers ? Previously it was discovered that the MCU code for the KGL, Klyde and Roadmaster units is very very similar, with only minor differences.

---------- Post added at 05:58 PM ---------- Previous post was at 05:53 PM ----------

OK, will I get the blame if the Klyde radio doesnt work ? :eek:
[MTCB Android Head Units Q&A] SkyBehind:
Do you have any issues with mic static (actually more of an electrical interference buzz)? My mic is horrible, was hoping a firmware update would fix it (haven't updated yet) but it's possible I'll have top open it up and wire an external mic. It may be too close to something giving off electrical inference.
[MTCB Android Head Units Q&A] ptclabs:
I have talked with most of the factories by now. They are using Chinese programmer/s. I did mention Indians may be cheaper, but they just laughed. You do not have to house and feed Indians though...Also they are faster, but I do not think they get that yet. They will. Although 90$ a month is not bad for labor. I do think what the Indians can do with that little of money is much more than the completely overworked Chinese can. I am biased though I have been doing international business for years, so I would never use Chinese for programming. I think GS is more than likely a former employee of kgl. If you have read my past posts you understand what happened. I have not asked Kai, but I am sure they would say the same. It is just how it works. If everything works but a cable is repinned, that would be a fairly good copy. When everything is in doubt just change something and say no we did not copy anything.

Some of the basic tablet things are just missing. Like a lock screen. It is annoying. They are there, as it is really just a 4.2.2 android chinese tablet, but disabled in a way that is most annoying. The MCU crap really makes no sense other than them just having thousands of them around. They are so close to making a great product which is useable and resourceful, but fear of copies, and greed will stop them from reaching it. Just like most Chinese ventures. Death by fear of someone stealing what you have. It is a bad part of the business.

Honestly protecting the programming which they will never be able to actually do is the only thing they have. The minute that the source code went public. Twenty other factories would be gearing up to crank these things out as they have the ability to produce them, just not the software to put on them.

The system sucks.
[MTCB Android Head Units Q&A] xrapidx:
Hmm.. I actually think I asked before.

My radio is already buggered, so I'm good.
[MTCB Android Head Units Q&A] typos1:
(I think you mean a former employee of KGL, I think not Klyde, its the KGL and GS that appear to be identical)

A few months back someone else also did a hybrid with updates, but with totally different versions, think it was KGL update on a Klyde, initially they didnt read the thread and bricked their unit because they flashed the MCU as well, but they managed to get it working again. They then kept the original MCU and flashed the firmware from the other manufacturer and it worked fully, I think or maybe they had to remap some buttons, I cant fully remember, theres been 100s of posts since and I read them all :eek: But the point is you can get one company's firmware to work on another's pretty easily, which may be useful for modifying and may or may not help establish who is copying who or not etc.
[MTCB Android Head Units Q&A] make77:
Hi all and sorry already if this is stupid question.

I'm looking for suitable HU for Ford Focus 2012 (MK3) but even harder is find good looking dash kit around it. Then I found this 1U headunit with factorylook dashkit fit around it and I would love to buy it if it is compatible with other units discussed in this thread.

www DOT aliexpress DOT com

Product ID: 2025253561

(Sorry, no link as I'm too noob for this forum)

Could someone give thoughts about this unit and is it "HuiFei" compatible unit as I'm bit sceptical this system being 1U unit with 8" display.

Thanks in advance!

Markus
[MTCB Android Head Units Q&A] Skitals:
GS looks identical to KGL with regards to software and hardware components, but the GS back panel is very similar to Klyde. It looks like they use an identical breakout panel for the interconnects and hookups.

Maybe they are just common parts? GS seems like it's a hybrid between KGL and KLD.
[MTCB Android Head Units Q&A] agentdr8:
You would need to have to seller send you a screenshot of the Settings->About screen, with the MCU information. The launcher screenshots appear to be from KGL/KLD, but they could just be the generic ones floating around AliExpress.
[MTCB Android Head Units Q&A] ptclabs:
you are correct and i fixed the post. I did just ask them, and they said they were the original makers of this unit, but there have been others after.

Thanks for noticing my mistake.

As far as cases and such that stuff is so easily had, you just buy from the cheapest supplier. There is no reason for precise stuff really, so it would be who found the cheapest metal that day, or who had the molds. In the case of copies it would be who had the molds for the last company. You cannot just look at the case really. The injected molded stuff is harder to come by like the face plates.

The likelihood of a unit being so compatible if it was not copied the only thing different is where the play button is is not really high. Nothing wrong with copies, it brings down price as long as what they are copying is what is really needed and wanted. They are so close but not there yet,

I also know a few of the English speaking salesmen from that factory are reading this forum. So I try to shove them in the right direction.
[MTCB Android Head Units Q&A] typos1:
It appears to be a Klyde version judging from the spec and photos of the launcher (but one of the smaller pictures shows the RoadMaster launcher) so I would think its a Klyde. Do what agentdr8 says to be certain.

Not sure what you mean by "HuiFei compatible" - all of them are Rockchip RK3066 tablet based devices with only minor differences - I usually say all versions are good, the Klyde, the HuiFei/KGL, the Roadmaster and the GS (which appears to be exactly the same as the HuiFei/KGLs), but there have been reports of a few HuiFei/KGLs blowing speakers and of them having very poor radios (Skitals has cancelled his KGL and ordered a Klyde) so you could argue it might be best to avoid getting a KGL/HuiFei, although I wouldnt go as far as saying that yet personally.
[MTCB Android Head Units Q&A] vaughany2:
Update problem

Hi. Trying to update to 2.02 from 1.77. The installation keeps failing. I have 2 files on the TF card, mcu and update.img. Tried it in the GPS and SD card slots. Same errors. Any ideas???
[MTCB Android Head Units Q&A] ptclabs:
updateing gs to kgl 2.02

I did forget to mention. There is only about half the available volume level after you do this. The kgl update only goes to 30, but it really is only 30, where the GS went to 50. After 30 there was so much distortion it did not matter though. 30 is loud enough.

It is more than likely just a setting in a db somewhere if you need louder.
[MTCB Android Head Units Q&A] typos1:
Sorry, yes I remember now that the GSs shown in supplier listings had rear panels like the Klydes, you are clearly confirming that. As I said earlier the specs were also listed as the same as the Klydes but arent, or at least the radio IC isnt.

I dont think the GS are hybrids, I think they are almost identical to the KGLs, I reckon inside all the ICs will be the same. Only one way to find out - fancy taking yours apart ? !It seems that the only differences are the back panels and the MCU version, although there is the possibility that they are the same just re-named.

The Klyde versions have "klyde" stamped into the back panel on the inside well, at least a picture of a dismantled unit from months ago did.

Is your back panel the same as the Klyde's ptclabs ?

---------- Post added at 06:57 PM ---------- Previous post was at 06:53 PM ----------

Right, but in that post I was just referring to software not hardware.

Whilst some of the fronts are used by all companies, by the same token some are unique to some of the companies.

---------- Post added at 07:01 PM ---------- Previous post was at 06:57 PM ----------

Or maybe the GS does actually have a different amp IC ? (not trying to contradict you, just a suggestion).

Have you taken it apart yet ?

Maybe going from 1.77, to 1.86, to 1.99, to 2.02 maybe sort the problem ?
[MTCB Android Head Units Q&A] ptclabs:
I have no problem taking it apart. I have to wait for Kai's sample to show up so I can take it out of my car though. It seems that it had more to do with the android volume setting more than the amp.

I have not taken it to pieces yet so I have no seen what is connected to what but I am guessing the amp is connected to the mcu. I am running a GS mcu but the volume is not what it was. Not that i need any more than what it has it just runs at the upper range now. where before it was in the middle. If the amp was different I assume(just an assumption) it would have changed with the other mcu. It goes until the point it would have distorted before, so it is fine just different.

Ill take it to pieces when I get something else to sing some tunes.

Do the rear panels look like anyone elses? yeah like a really cheap klyde. With a bunch of casting marks.
[MTCB Android Head Units Q&A] typos1:
I m guessing that its got the same amp IC as the KGL and probably something slightly different in the firmware or how it interacts with the MCU re volume.

My negotiations with Klyde are taking a long time so I have no units yet, but I was impressed with the Klyde back panel in the photos - it looks like quite a good quality casting, so interesting you say its like a cheap Klyde's and this really does suggest a copy.
[MTCB Android Head Units Q&A] Stank0:
Looks like your update.img is invalid and mcu.img is ok. Try to re-download.

---------- Post added at 04:40 PM ---------- Previous post was at 04:28 PM ----------

Probably a stupid question.. did you try different card? ;)
[MTCB Android Head Units Q&A] pakidermo5000:
The difference is the AndroidManifest.xml.

OEM --> keeps the same package name as the original Radio (com.microntek.radio)

non-OEM --> I change it to whatever, so that you can install the app without removing the OEM one. (i.e. com.microntek.radioRallySkin)

Android identifies apps by their package names. You cannot install two times the same app, that´s why you need to change the "package" name if you want to install it with the OEM app.
[MTCB Android Head Units Q&A] 1-2-Hak:
Interesting. I have unlocked that menu many times but have never been able to get the adb working. Thought it was blocked in the kernel.

Can you let me know what MCU and FW it worked for you with?

Thanks
[MTCB Android Head Units Q&A] sprfly:
Yeah I tried putting the card from my go pro in there to see if I could see the files with es file explorer and no go. Also the card that came with it works in the other slot so it's not the card. I think I'm going to send it back because I don't really trust that once the dispute expires they will actually send the buttons I want. So that and the fact that the card slot is not working and the fact that I still haven't been able to source brackets to mount it since they didn't come with those either.
[MTCB Android Head Units Q&A] kwalsh24:
Here's a question, anyone know what id need to modify so that when I'm on AVin I can change the exclamation mark to something else? I'm using this for my satradio in...
[MTCB Android Head Units Q&A] agentdr8:
You can probably just replace the res/drawable-nodpi/no_signal_a.png in MTCAVin.apk with either a transparent image, or something of your choosing.
[MTCB Android Head Units Q&A] kwalsh24:
Perrrrfect! Thanks!
[MTCB Android Head Units Q&A] agentdr8:
Oops, spoke too soon. The drawable resources in the MTC apps (or at least the AVin.apk) are hashed and signed, so replacing it with 7zip/Winzip won't work. You'll probably want to modify the image, then sign the package with testkeys and install it as a normal app. It doesn't use the shared system user ID, so it should work just fine as a user app.
[MTCB Android Head Units Q&A] kwalsh24:
Ah crap lol, guess I shall see if I Cam research that out, be awesome if I could change the app icon and what not to being a SiriusXM app instead the avin named app lol
[MTCB Android Head Units Q&A] Stank0:
Oh I see. The issues are strong with this one. ;)

Good luck.
[MTCB Android Head Units Q&A] agentdr8:
Check out VTS. Makes editing and resigning apks pretty easy. Let me know if you need any pointers/help with it.
[MTCB Android Head Units Q&A] kwalsh24:
Cool thanks eh, :) if I manage to figure it oout ill share it, as I think there were a few people on here questioning the satradio issue.
[MTCB Android Head Units Q&A] sprfly:
I am looking at a unit on aliexpress now. The MCU version is KGL 1.5! Which I suppose isn't a probalem because I can just update it. What else is odd is that it has a cooling fan. All other KGLs I have seen have no cooling fans.
[MTCB Android Head Units Q&A] ptclabs:
I did not use the menu to do it when I did. It does not work natively on the 2.02. I tried this mornin. I will see if changing the database is what did it, or all the crap I stole from my kids irulu that I copied on this thing. When I figure out what I did I will post. It was originally a 1.85 GS. I did not know the menu was accessible when i did it so it was turned on via terminal.

I have messed with it so much it could be one of 100 things. Guess I should keep records, or try one thing at a time. Try turning it on via terminal and see if that works if your still on a older one.

I will start copying things again from my kids tab. I did this last time until it crashed. I will try not to go that far this time.
[MTCB Android Head Units Q&A] kwalsh24:
SO when you say modify the image, are you meaning the 1.99 image? I just finished wiring my satradio into AVin, ran it and all was well for a few min, then the screen flickered green and the system rebooted, hope this isnt a ongoing issue :( Kinda wish the unit has just a Aux in with no video

Could I edit the apk and sideload it via root explorer?
[MTCB Android Head Units Q&A] agentdr8:
No no no, not the system image. The PNG image file itself. That's what you wanted changed right? So that when you select AV/AUX source, it shows you something other than the exclamation? That needs to be edited or replaced in the apk, and then the apk sideloaded. You'd want to remove the original apk from /system/app first.
[MTCB Android Head Units Q&A] kwalsh24:
Yeah, I've gotten that changed, I'm just editing via winrar then moving the file over into the system/apps folder and its working. The only thing I haven't figured out is the icon that shows, I edit it but it still appears as the old.... Well now to just tweak it all, :) thanks !
[MTCB Android Head Units Q&A] ptclabs:
Use multi user that will fix it. One for her one for you.
[MTCB Android Head Units Q&A] sprfly:
Anyone with the removable faceplate KGL ever have any issues. I am just concerned about the addition of an additional mechanical failure point that could also wear out over time.
[MTCB Android Head Units Q&A] kwalsh24:
Mental note, remove SD drive before doing factory reset, damn radio formatted my 32gig SD drive that had all my music on it grr. Wish the damn issue with the install button not able to be pressed would be fixed. was trying yo install a different version of sygic to test with and the radio wouldn't let me select install, only way i can get around this is to factory reset, no reboot or button reset fixes the matter :(
[MTCB Android Head Units Q&A] fsheart@gmail.com:
I can not find how to delete my posting....
[MTCB Android Head Units Q&A] 1-2-Hak:
I bought a spare one - just in case :)
[MTCB Android Head Units Q&A] typos1:
It probably wont come with version 1.5, that will just be what the units were running when they took the screen shots for the listing.

---------- Post added at 11:49 AM ---------- Previous post was at 11:48 AM ----------

But only for Windows :(
[MTCB Android Head Units Q&A] Journeyman91:
Hey guys,

I think this is a fantastic thread an I would be happy to join the community!

Sadly, I am - after some reading - more confused then before. Where can I buy one of these head units and what to check before buying one?

Bests

€: I wonder if this one is the one to buy: http://kaigele.en.alibaba.com/produ..._Android_4_2_2_Car_Dvd_For_Alfa_Giulieta.html

Then again it wouldn't exchange the excisting radio unit but connects with it? How?!
[MTCB Android Head Units Q&A] typos1:
I ve not seen one for an Alfa before. I take it you have the first series Guilietta, not the facelift (the facelift has the display in with the stereo, not on the top of the dash).

It doesnt mention whether it connects with the existing stereo or not, I assume youre asking because it is clearly designed to sit on top of the dash where the screen would be, not where the stereo is. I would guess that a separate double din box also comes with it to fit where the OEM stereo sits, this is how they normally do things with cars that have separate screens (some Peugeots for example) and also it includes an amp and DVD player and there is not enough room for them if it is just what is shown in the picture.

The best way to find out is to ask them.

Just had a look at their site and theyve recently added several for Alfas.

They also now have "we are factory" and "the original and best" - I think Keylo still reads this thread !
[MTCB Android Head Units Q&A] coyttl:
If you do a /proc/mount, does it list anything as being mounted related to the card? (i.e. look at it without the card, and then look at it with the card in.)
[MTCB Android Head Units Q&A] scroater:
WIFI

I bought a KGL Head Unit the other week fitted great etc have it rooted as per the fantastic guides on this thread, but my wifi is weak barely receive my home wifi on the drive, is there anyway i can boost it...Picture attached of unit..
[MTCB Android Head Units Q&A] typos1:
Some people have reported the same problem, I think they changed the kernel to sort it, do a thread search (on the right) for more info.
[MTCB Android Head Units Q&A] grumetecap:
The best model

I'm still looking and discovering in the thread

Now i know huifei sells directly the navi that i want,but which it´s the last or best one¿?

KGL-7698N, KGL-7698G,KGL-7698 or other :confused:

Guess this one its their web:

h ttp://kaigele.en.alibaba.com/product/2014381542-220755421/huifei_dvd_car_audio_navigation_system_for_VW_Scirocco_2008_2011_Golf_5_MK5_2005_2009_Golf_6_MK6_2010_2011.html

Many thanks!!
[MTCB Android Head Units Q&A] agentdr8:
Yep. On linux, I use aapt, apktool, baksmali, dex2jar, jd-gui, and eclipse/adt.