[MTCB Android Head Units Q&A] typos1:
For a 3G dongle you really need a powered hub for reliable use, for USB sticks this does not help, you need to re-format your USB stick as FAT32 (even if it is already) then it will not keep unmounting (if youre a Windows user then yourll need software to do this as good old Microsh*t has put a limit if 32Gb for formatting in FAT32 on Windows).. However, once youve done this, even though it will not unmount, (my 128Gb stick plays and does not unmount) the music will cut in and out, the manufacturer told me to use an SD card, I told them that that was not acceptable, that they should make it work properly, not heard back yet. On KLD versions DSA said that the USB lead with the purple plug will read USB sticks without the music cutting out, I havent tested it on my KLD yet, there is no equivalent lead on JY units (at least not on mine) so that solution wont work on those. What version do you have ?

The icons can be changed in the same way they can on any other Android device.

There is no way to back up MCUs but its unnecessary, as Siffion has said, there is a repository of MCUs if you need to downgrade.

The only way of rooting 4.4.4, as it says on the first page is with a pre-rooted image, hence the pre-rooted images, if there was another way obviously we would have instructions for it.

The Google voice app has only started not working since a recent update, apparently it worked fine before, so you could try and see if you can find a copy of the previous version.

You think youre the first to mention the length of this thread !? Unknown brands do not get full threads with sub forums, only popular devices from well known brands do, obviously it would be far easier if we had sub-forums, but even if we did it would take a whole hell of a lot of work to move everything to sub forums over a year of the thread and with 1000 pages, unless of course youre volunteering to spend weeks and weeks reading the entire thread and then moving everything ? But even if you are volunteering you wouldnt be able to as requests even for an "Android Headunits" forum on XDA have been totally ignored and there are at least 5 different types, some with threads almost as long as this. Having said all that every single one of your questions could have been answered by using the thread search box to the right.

Great !!

No, you could make one yourself, I intend making one at some point, when I get time, which may take me a while as when I do get time it will be spent learning how to as I ve not done it before.

As for your car language, I would try connecting the original head unit and seeing if you can set the car language with that, then removing it and re-connecting the Android one.

---------- Post added at 11:29 PM ---------- Previous post was at 11:23 PM ----------

A powered hub will only help with 3G issues, not USB stick issues, at least on KLD and JY versions.

Are you saying that with a powered hub your USB will play without the music cutting in and out ? This has not been reported to work so far.

---------- Post added at 11:44 PM ---------- Previous post was at 11:29 PM ----------

I would try every VW Group setting and if none work then try all of the rest as well. Not all cars are supported, support for VW Group cars is pretty good though, it is dependent on the year of your car, but as yours is quite a late model then it should work, if you still cant get it to work then try messaging pakidermo, the original poster and asking what settings his is on - he has an A3.

---------- Post added at 11:51 PM ---------- Previous post was at 11:44 PM ----------

Is that a full picture of your "about" screen ? Are you saying you have no MCU manufacturer listed ? Not seen that before, how odd. There is another way to identify which unit you have - on the first page (which you appear not to have read) there is a link to a pdf that tells you how to identify your unit by looking at the back. Who makes your unit is only relevant to upgrading your MCU however - you can upgrade your Android version whichever manufacturer makes it, as it clearly states on the first page - try reading it !!