yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] dark alex:
Had the same problem just at another place. You ahve to clean the contacs where the flat cables (ribbon cables) of the TFT and Touch go into the mainboard with hig pressure air or something similar. As well as the cables themselves. but beware! Don't damage it!
[MTCB Android Head Units Q&A] mrd0c:
Here it is a video of the problem:

http ://youtu.be/w60mbljFiN4

It is like the screen has a limit. Could this have any kind of calibration maybe?

Edit: dark alex thanks, that looks tedious, I can try but I don't want to break anything or the seller to acuse me of manipulating the unit.
[MTCB Android Head Units Q&A] RoBe30:
Google Maps 8.2

Has anyone been able to get Google Maps 8.2 to work on their unit? My system currently has v8.0 and a very annoying bug where the blue dot position indicator only points north.

So basically when I use the program the map doesnt rotate with my heading and I simply crab across the roads etc..

From my research this bug is with google maps itself. And I was wonderign if anyone else experianced this issue or knows of a fix for it.

When I sideload Maps 8.2 I get parse errors
[MTCB Android Head Units Q&A] RoBe30:
Icon Colour Change

Hello Guys I have been playing with my unit a bit more and have a few questions I cannot find answer for.

1. I Have added my google account to the unit, the account is not listed in the settings though. If I try to add it again it says it is already there. I noticed in the opening post there is a fix for it by copying in the calendersync.apk. I have tried this and it fixes the calender issue but my account is still not visible. any suggestions?

2. Can anybody suggest a good program that will allow me to change the default bluetooth and wifi icons from blue to red?

3. My car has a digital amp, if i try to change any equilizer settings the sounds stops and wont come back until the unit is restarted. I think this is a firmware bug. any others experianced this?

4. my unit stopped displaying the jellybean logo during boot. It still boots up but displays a black screen for 20seconds whilst it boots, then the dvd animation for a couple of seconds before the homescreen appears. I have rooted, using car service, MTCxposed. I thought the unit died but i waited patiently and it boots up in the normal time just with a black screen. weird huh?

I am having the same TTS issues with IGO that is reported earlier. gonna tr a few different version to see which might work.

5. Can anyone suggest which device I should change my system to when using market helper? I have searched through the thread, market helper is mentioned a few times but there are no suggestions as to which unit to change it to. I was thinking nexus 7 3G?

Thanks guys.

Rob.
[MTCB Android Head Units Q&A] dcmouser:
In the factory settings area you can try to specify a custom logo -- I assumed that these files should be in the png.logo format (created by the bmp2logo utility discussed in other android head unit threads). But the png.logo files don't seem to be what the custom logo setting wants.

Anyone know what format of files are needed for this setting?

And what size images we should be using?
[MTCB Android Head Units Q&A] optx:
I did all of them with gimp, working fine here .....

Took the original size (512x256)
[MTCB Android Head Units Q&A] agentdr8:
I haven't found a way to have the added account show up under Accounts. The best way I found to get to it was via Calendar sync settings.

Maybe GravityBox? I haven't tried it though.

Try re-applying/changing the boot logo in the Factory Settings.
[MTCB Android Head Units Q&A] dcmouser:
Great! Thanks for the tip.. png files of size 512x256 seem to work.
[MTCB Android Head Units Q&A] Wranglerz:
Can't get my rear view camera working ???

Can't get my rear view camera working on my Huifei for Renault MeganeII firmware 1.86.

Connected it to the camera RCA input and powered it whit he red and black wire from the same connector from which the camera input came.

Still no picture when i put it in reverse :(

Anyone with a solution :confused:
[MTCB Android Head Units Q&A] agentdr8:
The camera is usually powered by the backup lights +12V and ground. And then the reverse wire on the headunit is connected to a similar wire that gets +12V when the vehicle is put into reverse.
[MTCB Android Head Units Q&A] Wranglerz:
But which one is the reverse wire ?
[MTCB Android Head Units Q&A] coyttl:
I believe this is a maps issue - the 'My Location' overlay (the blue dot / arrow) uses axis sensors/compass, and NOT the GPS given direction.
[MTCB Android Head Units Q&A] agentdr8:
It should show it on the wiring diagram on the top of the headunit. As far as which it is on your vehicle, you can use a test light and find which is the +12V line on one of the backup lights.
[MTCB Android Head Units Q&A] nickwuk:
Music Player

Really miss not having a Shuffle option on this music player, shame it's not open source software so one could be added.
[MTCB Android Head Units Q&A] Wranglerz:
Dito
[MTCB Android Head Units Q&A] nickwuk:
Hey Wranglerz, I've got the same problem with my Navall2 which is a Huifei with Android 4.2.2 installed in a BMW E46. I've connected the yellow plug from the cam cable to a yellow socket labelled CAM IN, and connected the red cable to a pink cable from the Canbus; the pink cable is split in two both labelled reverse and I found that it was the one from the Canbus end (rather than from the unit) that was giving +12v when in reverse and ignition on. I've connected the black plug to the red from the cam, then for testing I've temporarily connected the red cable [from the black plug] to the live side of the glove compartment light to get +12v, and earthed the black cable to the -ve side. But nothing happens on the head unit screen when in reverse and ignition on.

There's another yellow socket from the head unit which I've also tried, however I can no longer see what it's label is though as with the unit fitted access is now tight. Can anyone explain what should happen at the head unit, should the screen simply switch to the video player?
[MTCB Android Head Units Q&A] dcmouser:
Yes, it will switch *immediately* to the backup camera view.

Furthermore, this switch bypasses the android unit completely, so it shouldn't matter what is running on the android unit, or whether it is even fully booted up yet or not.

One thing to mention, on my unit there were probably 4 different rca video inputs, all labeled things like "video, cam, camera, videoin" -- i had to guess which was the right one. there was a red wire labeled "reverse" that i connected to my reverse taillight to trigger the switch.

My naive guess is that if your unit isnt switching to one of the camera views, it should be because that red wire is not getting the power signal that you are in reverse. Did you check it with a voltmeter when you put the car in reverse?

---------- Post added at 09:47 AM ---------- Previous post was at 09:30 AM ----------

I can't think of any reason anyone should use the included music player.. With the Car Audio Service tool created by someone on this forum, any 3rd party music player can be used in it's place as if it were native.
[MTCB Android Head Units Q&A] thnilsen:
DAB reception?

Been reading the full thread for the last 3 days. I'm very interested in getting one of these HuiFei units but one prevents me from pulling the trigger on one. As most of Europe is heading towards DAB/DAB+ in the next 2-4 years there doesn't seem to be a whole lot if interest in getting hardware that supports it. I see these units can be delivered with DVB-T for television broadcast but that won't help much for Radio broadcasts. Here in Norway the old analogue FM band will turned of in Jan 2017 so buying a new radio that doesn't support DAB+ in some form will be a waste.

Having done some research on the Android/DAB theme the only solid info I have found of functional support is by using a USB stick with the R820T chip or the MonkeyBoard ( w w w.monkeyboard.org). The USB stick requires software decoding of the signal and also has a rather limited android software app available. The monkeyboard handles all the decoding onboard - but needs a Line-IN to provide the audio, but on the plus side has a well written radio app.

Has anyone following this thread tried DAB/DAB+ with these car stereos?

Finding a place that sells these HuiFei units is also not very ease. I found this http: //w w w .aliexpress.com/item/2-two-din-universal-Pure-Android-4-2-2-3g-wifi-head-unit-autoradio-video-DVD/1829170420.html which based on the pictures seems to be the correct type. and at a good price.

Regards,

Thomas
[MTCB Android Head Units Q&A] nickwuk:
Where can I download this 'Car Audio Service tool' from, does the unit have to be rooted?

What music player is recommended?

---------- Post added at 05:04 PM ---------- Previous post was at 04:54 PM ----------

I'm in the UK and I bought mine recently from Sean at http://www.bmwradios.com he markets them for BMW's and Rovers.
[MTCB Android Head Units Q&A] krebs8:
DAB+ with Erisin ES9401A (= Huifei KGL-8401 ?)

User OptX at the german forum http://www.china-rns.com/erisin/8831-erisin-es9401a-14.html will write his experience with DAB+ and his Erisin ES9401A within an short time. He already said to me that his reception is good.
[MTCB Android Head Units Q&A] agentdr8:
Car Audio Service is available from the OP, in the Modded Apps section.

Music player preference is a personal choice, but I like Poweramp.
[MTCB Android Head Units Q&A] nickwuk:
What does OP stand for in this context please?
[MTCB Android Head Units Q&A] idr3s:
OP = original post I guess .. just go to the very first post in this thread and you'll find it there
[MTCB Android Head Units Q&A] optx:
Just a short Info :

I did update from 1.86 to 1.95 (mcu.img only), and all my buttons are working again :good:

My Device is a KGL-76988G/KGL-8401G

Review about dab will follow soon, still trying to get the max out of it ;)

Here a few screenshots from Wavesink :
[MTCB Android Head Units Q&A] dark alex:
what dongle do you use? mine always loses connection...
[MTCB Android Head Units Q&A] cryptedx:
MCU 1.95 / DAB+ with wavesink

Hi optx,

I have also updated successfully to 1.95. My GPS Key is now working again. The Problem now is that I have the wrong button lights. I need red for Audi, now it is white...

[MENTION=925653]darkalex[/MENTION]

I am using a stick with RTL2832U. Search on eBay fpr "MINI FM+DAB+DVB-T+SDR Dongle STICK RTL2832U+R820T Antenna for LINUX"

[MENTION=2968603]optx[/MENTION]

I have wavesink pro version, but I can't get any sound out of it... Do you have a clue for me?

Regards

cryptedx
[MTCB Android Head Units Q&A] dark alex:
Sure. Cause that's the only supported one ;)

But what I was asking was which dongle you are using not which chipset it is relying on.

Cause I also own one and as I told it always loses connection...

//Edit: with some other adroid device it's working perfectly btw

[MENTION=5962046]cryptedx[/MENTION]: Does Poweramp play? Did you check the system volumes? (see some posts ago)
[MTCB Android Head Units Q&A] cryptedx:
I have also posted "Search on eBay for "MINI FM+DAB+DVB-T+SDR Dongle STICK RTL2832U+R820T Antenna for LINUX"" This is the one I am using.
[MTCB Android Head Units Q&A] redcrozzz:
Just an FYI

On my ford unit (KGL-7302) I had the same problem when connecting the reverse camera. The connector with a the cam-in and the red and black wires were hooked up but nothing happened. I checked and made sure the reverse 12V was going to the red wire. Finally I looked at the main harness (power and speakers) and there was a wire labeled reverse. It was supposed to be pink according to the top of the unit, but it was actually purple. That wire went to the canbus adapter but never worked. I ended up cutting the wire from the main harness and connected it to my factory harness reverse and now the camera works!

I am starting to think I do not even need the can bus adapter. (I had to rewire the reverse and illumination from the can bus adapter to the factory main harness).
[MTCB Android Head Units Q&A] optx:
This is the one i usw for dab

Same Hardware as cryptedx.

[MENTION=5962046]cryptedx[/MENTION] dont You get any sound out off wavesink ?

For the colors, in the factory settings i checked hte RGB option for the button colors ( last section if i remeber correct).

Then i could choose the colors in the normal settings.
[MTCB Android Head Units Q&A] cryptedx:
[MENTION=2968603]optx[/MENTION]

No, I don't get any sound out. Only with FM but not with DAB+
[MTCB Android Head Units Q&A] thnilsen:
I'll need the Universal version, so the one offered by bmwradios.com won't help much, and besides they are on the rather expensive side as well. But thanks for sharing.

That sounds promising. The Wavesink app does leave a bit do be desired though when compared to what they have achieved with the monkeyboard unit. Had the source code been available for Wavesink it would have been a very good option.. Looking forward to your review.

Thomas
[MTCB Android Head Units Q&A] Gaslight0:
Do you have a link to the 1.95
[MTCB Android Head Units Q&A] kwalsh24:
Does the kgl 1.95 improve anything ? Weird that its only a half update, can't imagine it changes much with the size id the file
[MTCB Android Head Units Q&A] typos1:
A German company does an Android stereo with an optional DAB box, but the spec is not as good as these units and the price is really silly, like £1200 !! (do a thread search, I ve put links in this thread before).

The best option is to get one with DVB-T then your ll get digital radio on that, not DAB, but digital. In the UK we still use DAB, despite the fact that the rest of Europe has moved to DAB+ and we jam in as many channels as we can meaning that older FM radio actually has better sound quality, so in the UK at least, digital radio via DVB-T is better than DAB, not sure how it compares to DAB+ but it will be an improvement on FM.

You also really need a diversity (twin aerak) set up to get decent DVB-T reception on the move, I ve searched in vain for a diversity DVB-T tuner for Android (single tuner ones are plentiful), so I ended up ordering a unit with the built in diversity DVB-T tuner from Klyde. Its controlled by the MCU and the menus arent great (but I think you can at least change the colour, not too sure yet as it hasnt arrived), but it should work ok. I intend to make some sort of widget for it so I dont have to stare at the ****ty menus.

They are so many sites that sell HuiFei/KGL and Klyde versions its unreal, I cant understand how youve managed to find so few !

Edit: posted BEFORE I found out that optx has DAB - it has a very basic interface, I may have dissed the menus on the DVB-T earlier, but theyre better than that. I tried Wavesink with an RTL2832U DVB-T stick on my Android TV box and couldnt get any sound either, gave up on that idea and decided to use build in DVB-T as I said above.

I wonder what tuner Klyde use for their DVB-T ? It might be an RTL2832U type, which may mean you could use something like wavesink on one of these units . . . if you could get the MCU to talk to it.

Thats strange, I thought Klyde ones did not have colour changeable LEDs - someone posted a few days ago saying they couldnt change the colour on theirs, so its weird that yours have changed.
[MTCB Android Head Units Q&A] george2350:
1.95 MCU Firmware

Anyone have an alternate download link for the KGL 1.95 MCU firmware. Original link does take me to a translated google drive but I am not able to download anything. Wondering if it is me or something else is wrong. Thanks in advance.

George
[MTCB Android Head Units Q&A] niniRocker:
this phone come to latin america? :confused:
[MTCB Android Head Units Q&A] az_peb:
Dongle working on AT&T

In case anyone else wants a known working solution on AT&T, here is what I did.

Bought a used huawei e368 dongle for $~35 (see eBay/amazon).

Took it to AT&T store to get a sim for it - added to my shared data plan.

Verified it worked on my laptop. It didn't until I installed AT&T connection manager (found on simulated cd on device - make sure to update it)

Tried to disable the simulated cd since I saw that can cause problems. The e368 doesn't support that AT diag comment. Luckily, it doesn't matter.

Inserted e368 into port marked 3G on huifei.

After booting, I had grey signal bars on the huifei status bar, but no internet.

Installed widgetsoid, from the play store. Added a signal widget to my home screen. Then I used it to create a new apn profile. The only apn I found to work was isp.cingular, explicitly set auth to None and APN Type to default,mms,supl I left everything else as default.

(Ps. There was much trial and error to figure out what to do. Hopefully this will save done others some time :)

Edit: speedtest on the radio (side loaded) showed ~6Mb/s down and ~1Mb/s up.
[MTCB Android Head Units Q&A] doroyce05:
mic issue

It seems that my built in mic is crap. My radio doesn't seem to have an option for an external mic. There is the mini USB port such would be awesome to have as an usb external mic but that doesn't seem to an option either. What have you guys done on adding an external mic?
[MTCB Android Head Units Q&A] agentdr8:
You can solder on a lead to the internal mic pads and add your own external mic. See this post for some pics.
[MTCB Android Head Units Q&A] kwalsh24:
Just ran the 1.95 mcu update, will see if anything has been improved. So far my elements have changed to all white and my boot logo to the android logo over the VW logo I once had.

Enabled the elements and changed the boot logo back in factory settings, so far so good.

Fingers crossed that the wifi issue is resolved!
[MTCB Android Head Units Q&A] cryptedx:
[MENTION=456516]typos1[/MENTION]

I can change my color LEDs since of the beginning. Have a look at my picutres. I have set the option in the Radio Settings. Thx [MENTION=2968603]optx[/MENTION] for the help!
[MTCB Android Head Units Q&A] cryptedx:
Hello,

I can't post links at the moment but remove all unnessesarry stuff from the link, than it will work. I will send it to you also by personal message.
[MTCB Android Head Units Q&A] kwalsh24:
Yeah, just have to remove the translation garbled and it works fine, did it on my end to get the 1.95

---------- Post added at 04:39 AM ---------- Previous post was at 04:36 AM ----------

1.95 KGL firmware/MCU image link:

seems to have various version listed here ---

https://drive.google.com/folderview?id=0BxmzvLRI7-eNeVA2SWkwM1pLZ28&usp=sharing

1.95 Direct link: https://drive.google.com/folderview...&usp=sharing&tid=0BxmzvLRI7-eNeVA2SWkwM1pLZ28
[MTCB Android Head Units Q&A] R4D3N:
In that link It's only the MCU. Where is the full update.img for v1.95?
[MTCB Android Head Units Q&A] optx:
There is just a mcu update atm.

My device came with 1.77, the i updated to 1.86 where i lost some key functions.

Now with 1.95 everything is fine again.

I think this 1.95 is just a mcu fix for 1.86 but i dont know...
[MTCB Android Head Units Q&A] kwalsh24:
Yeah my guess it just fixes small things, button issues and maybe the wifi?

---------- Post added at 06:15 AM ---------- Previous post was at 05:52 AM ----------

Wifi still drops on large downloads, just tried to do a 17meg consistent download and the signal dropped :(
[MTCB Android Head Units Q&A] RmXsTyLe:
How to upgrade if u only have mcu.img (1.95)?
[MTCB Android Head Units Q&A] kwalsh24:
Have to boot into recovery and flash the Mcu file. So far can't say I've seen anything different. Maybe the full 1.95 is around the corner
[MTCB Android Head Units Q&A] xrapidx:
Does updating just the MCU reset everything?

Wanna see if it helps with 3G, I sometimes have authentication problems.
[MTCB Android Head Units Q&A] kwalsh24:
Nope. Only turned off the elements & changed the boot screen on my system
[MTCB Android Head Units Q&A] optx:
Damn, thats not good...

Because of my shiftwork i had not enough time to test wifi.

I hope that the 1.77 kernel will help again.
[MTCB Android Head Units Q&A] kwalsh24:
Yeah, still gotta get that kernel in lol
[MTCB Android Head Units Q&A] thnilsen:
I've done quite a bit of research to find a usable DAB unit for my car. The German ICAR-TECH units is just way to expensive at over €700. DVB-T in Norway seems to have a very limited number of available broadcasters since the focus is on DAB+.

I'm after a genuine HuiFei unit at a reasonable price. Most of the ones I've come across seems to be expensive or Klyde, RoadMaster or other clones. I found one that is branded as Coolbir CB-7620A at w w w.aliexpress.com/item/2-two-din-universal-Pure-Android-4-2-2-3g-wifi-head-unit-autoradio-video-DVD/1829170420.html. The back plate is the same as the genuine HuiFei unit and I also got the seller to send me a screenshot of the MCU version which shows MTCB-KLG-V1.72. So to me that is a very good indicator of it being the genuine article.

I'm looking forward to see what optx has experienced with the RTL2832U/R820T USB dongles and Wavesink.It might just be what I need. The other option is to try the monkeyboard option, provided the HuiFei unit has the AUX-IN which I believe it does.

It would have been some much simpler had HuiFei just added a DAB/DAB+ option to their external option box.

Thomas
[MTCB Android Head Units Q&A] doroyce05:
Thanks for the link. I will do the same thing .
[MTCB Android Head Units Q&A] RmXsTyLe:
i tried the 3 ways on the first page to reach the recovery mode, without success. is there maybe a 4th way (without rooting) ? or maybe i do something wrong :/
[MTCB Android Head Units Q&A] Ecniv_FR:
Firmware

Hey Guys,

Before anyone shoots me down please note that I did an extensive thread search before posting this question, I found the discussion about it however a definite answer wasn`t clear to me

Can anyone with a klyde unit confirm that this firmware drive.google.com/folderview?id=0BxmzvLRI7-eNdkZNejc2NTJrNEE&usp=sharing&tid=0BxmzvLRI7-eNeVA2SWkwM1pLZ28 (add https://) is working on our units and is understandable in either English and / or Dutch?

Thx in advance :good:
[MTCB Android Head Units Q&A] RmXsTyLe:
Hey,

who is "our" when u say "...is working on our units..." what unit do u own exactly ?
[MTCB Android Head Units Q&A] optx:
When and how does Wavesink loose connection ?

Mine is real fine, until i get under 3 signal bars. I get sometimes interruptions, but just a few seconds, till sound gets back.

Guess/Hope this is normal when signal is to weak......

Bought the fullversion of Wavesink today, and everything is up and running well so far.

Even FM sound is crystal clear with this app.

Here a quick vid i made :

[YOUTUBE]watch?v=YyfCinZ-vN0[/YOUTUBE]