yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] Mashio:
sound only coming off from front right speaker

I have a Klyde device, but sometimes when i turn my car on the sound only comes off from the front right speaker. I've tried updating the firmware from the seller but the problem still goes on. It's completely random, sometimes the sound works just fine and sometimes only in the front right speaker. Any help????

PS: The only way to restore all speakers is to press the RES button. Using reboot software and turning off and on again dont work!!

Thank you!!
[MTCB Android Head Units Q&A] Stank0:
I've got the same experience with my unit too. I had to wi-fi tether to my phone because my home wi-fi was totally unusable on my driveway, approx 30 ft from my router. I tried all updates (currently on 2.02) - no difference. :(
[MTCB Android Head Units Q&A] Reptile-X:
Same here guys, I am not even 10 feet away from my router and it is unstable, there is no antenna in the unit only a cable sticking out so far I could see, I am using a mifi to get internet but it is in the car and I have full wifi bar with that.

Soon I will go to a dongle with data plan, so no need for solution in my case, but you could soldeer a connector to the wifi cable and attach a antenna to it, just be sure you got the right cable.

EDIT: I was on mobile XDA app so I couldn't check there but here a post with inside pictures and you can see where the wifi antenna needs to be attached:

http://xdaforums.com/showpost.php?p=53684366&postcount=1181
[MTCB Android Head Units Q&A] dadino:
hello guys this is David and I write from Italy, I bought from tradesolution model t6605a, but has problems, the unit shuts down all the time, when I try to turn it takes five or ten minutes, and does not go very well, for example, 'little man android power is jerky, or not turning. I was wondering if any of you can help me, maybe you have any update, I have made ​​the purchase in May.

Thank you for your help

david
[MTCB Android Head Units Q&A] coyttl:
In that third pic, I swear it looks like the antenna is soldered to the antenna pad AND shorted to ground..!
[MTCB Android Head Units Q&A] Reptile-X:
If you can call that a antenna, especially in a full metal housing. Picture is not clear to see but it is very common thing on Chinese soldering departments :D
[MTCB Android Head Units Q&A] 1-2-Hak:
Might be interesting to try towelroot if someone hasnt rooted yet

https://towelroot.com/
[MTCB Android Head Units Q&A] Warlord711:
Doesnt work last time i checked.

---------- Post added at 01:25 PM ---------- Previous post was at 01:05 PM ----------

What car brand/model u got ?

The one you posted got the VW OEM look, i use KGL-8401 in my Golf 5. Doesnt have OEM look but display size is bigger.
[MTCB Android Head Units Q&A] R4D3N:
Yes, it was completely loose.

I will make some photos of the cable and where I soldered it and get back with a review.
[MTCB Android Head Units Q&A] ProfessorKnox:
Really nice your 'small' lab!

Were you able to control the TVbox (e.g. initiate channel search and channel change) via the touch screen of the HU?
[MTCB Android Head Units Q&A] Reptile-X:
Thanks :)

Yes, I could launch the TV app on the unit and use the touch screen to search and store channels. Next time when I launch the app it took little bit time to open the channels since its digital but it works.

I am working this weekend, maybe I will have some time next wednesday if the weather stays dry I will install the TV box and the GSM dongle and take some video, but I don't promise anything :P
[MTCB Android Head Units Q&A] ProfessorKnox:
Thanks for your prompt reply. As you may have seen from earlier posts I have the problem of controlling the TV box (Note: box is marked 'DTV4'): TV box's video signal is shown on the HU - 'bad signal' indicator due to BBC station selected from factory test? - but no control of the TV box possible at all, i.e. no menu appearing when touching the touch screen. I assume the TVapp is not sending touches out to the MCU/TV box while I assume that the MCU/TV box link is ok because when changing TV box option in the factory settings menu from a DTV box type to a ATV box type - with the result that the DTV app is replaced by a ATV app - and initating channel scan, then I can see commands going from the HU to the TV box (by tapping the communication wire of the connection cable between HU and TV box). A remarkable difference between the DTV and ATV app is, the ATV app - when touching the screen - owns and pops up its own menu for controlling the ATV box, while the DTV app doesn't have a menu at all, but TV box inserts it's menu into the video signal and DTV app then needs to send 'touch positions' to the DTV box for interpretation.

Can you please do me a favour and provide information about your HU type, versions of installed image and MCU and the version number of your DTV app? Maybe you can provide me your DTV app?

Thanks a lot in advance for your support!

BTW: I proposed to my seller to send back TV box for checking but he wants to have back TV box AND HU, which I'm rsisiting to do for the time being. So I have the incitation to root cause the problem by myself ;)
[MTCB Android Head Units Q&A] typos1:
And this means that there will be 2 radio apps in the app drawer ?

Doh, I ve already got apktool installed !
[MTCB Android Head Units Q&A] alsolh:
you need to be rooted, you need the "flash_image" file, you can use android tools to extract only the kernel from 1.77 image and you need to run the command:

flash_image kernet kernel.img

follow the tutorial for installing TWRP recovery image in the first page and do the same for the kernel
[MTCB Android Head Units Q&A] Reptile-X:
Okay, First of all my car is a Golf MK6 Variant, and I didn’t do any FW updates at all yet, I got the unit 5 months now. First I ordered the unit even before I received it I decided to order the TV Box too and seller was kind to send it without shipment costs.

I took couple pictures for you, here is my TV Box with its supplied antenna, it is not marked with anything but here in Netherlands we use DVB-T so I ordered a DVB-T one.

I am going to use this antenna since it has a booster and easier to hide and I had better image inside the house when I was testing:

This is my DTV app, I am not sure how I could provide the apk of it, I am not that good around android, if someone lead me the way I can get it for you if it is even possible. It is only 24kB by the way, so probably the driver and the rest is on the TV-Box itself and this app only allows to open and use the touch screen with it:

And this is the information about my unit:

Hope that helps :D To be honest I am getting little bit scared to update the FW and have problems with the TV app and such, but I really like to have 2-way CAN-BUS working, so at the end I will do it but have to wait little bit, first I want the GSM dongle working and the TV working than I will back it up before I start with any upgrade.
[MTCB Android Head Units Q&A] Skitals:
So the seller reluctantly canceled the order for the KGL unit I placed, and now Aliexpress is automatically canceling all the orders I make and requesting I provide scans of my DL and credit card. I dont want to do that. I ordered a Klyde unit on Tmart via paypal. No experience with Tmart, no clue how long it will be to ship. When I bought my GS unit on Ali I had it in my hands like 3 days later :crying:

---------- Post added at 05:36 PM ---------- Previous post was at 05:30 PM ----------

I see you have a Golf MK6 variant. Does your car have the dual fakra antenna? How is your radio reception on the HuiFei, and what antenna adapter are you using?

Edit: Nevermind, found your old post. You describe my radio problems exactly. I've tried 3 antenna adapters. I ordered the Klyde unit to see if it's any better with our car (different radio IC in the Klyde).
[MTCB Android Head Units Q&A] make77:
Thanks for being patient as I was not specific enough and used confusing terms.

I failed to receive proper answer from seller, but found another seller with quite similar unit (Rockchip RK3066) and managed to get screenshot showing MCU:

MTCB-KLD-V.1.96.

Aug 02 2014

Can I expect this to be Klyde-unit?

Ebay.com

eBay item number:

271597569626

Does anyone see any issues this headunit being only 1U and 8" screen being separate. Should I expect troubles with compability with devices and programs discussed in this thread as I'm thrilled what people has been able to pull out from their devices so far and I would like to do so as well.

I'm just maybe me being over caution about this, but so far all devices discussed here, that I have seen, has been 2U HU with integrated display.
[MTCB Android Head Units Q&A] typos1:
Well lets just hope the Klyde one works ok !

The only ones I could find on Tmart have KGL/GS back panels and one pic that shows the RoadMaster type launcher and one that shows the KGL/GS type launcher.
[MTCB Android Head Units Q&A] make77:
Sorry for being hard to understand, but I was just unsure about the fact this unit being fitted into unusual 1U HU instead of 2U HU. Maybe the necessary hardware is just there and this unit is compatible.

I'm not worried about fitting this set into my car, I was just worried about units hardware and software compatibility.
[MTCB Android Head Units Q&A] Reptile-X:
Yes I have still same problem but I didn’t do anything since my last post about this issue, to be honest I don't listen radio. In most cases I am on Poweramp and that’s it, if I really need radio I just run Tunnelin radio since I have a good monthly data plan, since I got 3 years warranty with my unit I don’t want to avoid it by opening the unit to fix it, otherwise I would rearrange everything and check the soldering points.

But I wish you goodluck with the Klyde unit and the fakra antenna.
[MTCB Android Head Units Q&A] typos1:
I cant see why as the specs clearly state that the hardware and software are the same as any other variant and I m still unsure what you mean by "compatibility", compatibility with what ? !

The BMW versions are also single DIN also. The hardware of the one you posted is the same, but he screen is mounted outside of the main unit, that is all.
[MTCB Android Head Units Q&A] Skitals:
http://www.tmart.com/KD-8008-VW-8-C...2.2-System-GPS-BT-iPod-ATV-Black_p269588.html

Definitely a klyde [emoji2]
[MTCB Android Head Units Q&A] typos1:
Ah yes.
[MTCB Android Head Units Q&A] ev1966:
I bought this fakra adapter that fits and works okay on my Golf mk6 variant:

ebay.de/itm/160768506253?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

The first adapter i bought didn't fit the double fakra that is in the golf mk6, besides the reception with this first adapter was very poor. Another problem with these fakra adapters (both of them) is that the pin inside the connector is pushed inside when connecting the fakra connector. I hope you understand what i mean :) So pay attention on the pin inside the connector of the adapter cable when connecting them to the Original VW cable in your car.
[MTCB Android Head Units Q&A] zorantoma:
launcher question

Has anyone managed to get the Klyde launcher and widgets(radio,mp3) working on a Huifei KGL unit?If yes,please share the needed files with me.
[MTCB Android Head Units Q&A] ProfessorKnox:
Thousand thanks for your again prompt and extensive reply as well as your considerable effort!!!

For the time being you don't need to put any further effort regarding my problem.

I have also "KGL" [without any further number] MCU image. I will try to find V1.70 release somwhere in the internet. Forun's repository has only software starting V1.77. If I find, I will downgrade *MY* radio for testing.

BTW. I couldn't follow and wondered about your final comment "first I want the GPS dongle working and the TV working"

Do you have problems with GPS? ...and I assumed your TV is working...???
[MTCB Android Head Units Q&A] ev1966:
Hi, I have the same car and radio as you have, and from NL too. I did some FW upgrade (and downgrade) I suggest you upgrade to 'mcu.img' v1.77 with system image 'update.img' v1.99. The problems i got with

MCU

v1.99: steering wheel track up and down buttons skips several tracks, and front lightning always on. With MCU v1.77 I don't have these problems.

I don't know what the problem with your DTV is (I have the same DTV box attached, mine is stamped DTV4) but possibly you didnt select DTV in the factory menu of the radio. (The menu with code 126) You have to choose for TV option: TV03-ISDB-T...

In FW1.77 and FW1.99 there is an DTV app selectable in the android menu. If you can't find it i can send it to you if you want. It is just 61kB in size.
[MTCB Android Head Units Q&A] ProfessorKnox:
[MENTION=5661976]ev1966[/MENTION]: It's me who has problems with the DTV box.

Thanks for your information.

I have the correct option enabled in the factory setting menu and i have also the DTV app in android menu.

MTCDTV.apk with size 142k

(Also MTCATV.apk with size 62k, but this is for analog TV).

Would you mind if you send me you your MTCDTV.apk for testing?

If you are interested, you may have a look at my post #3267.
[MTCB Android Head Units Q&A] edding7:
I just brick mine.

KGL 7620G (withouth knobs)

I was this evening installing Viper 4 Android (amazing eq for our units), and later trying to change resolutions.

I tried to change lcd density from build.prop from 240 to 220.

I did:

"adb pull /system/build.prop"

change lcd density from 240 to 220 and then

adb shell

mount -o rw,remount /dev/block/mmcblk0p1 /system

adb push /system/build.prop/

and then reboot

Then unit is now in bootloop.

I don't know what to do. I did a backup with NANDROID in TWRP format, but i don't know how to use it now.

¿Any recommendation?

I tried to get into recovery mode but i don't have any backup of my system in the format that could be readed by recovery.

Please i need help!! :/
[MTCB Android Head Units Q&A] Reptile-X:
Sorry guys, I mislead you with my busted English I guess, my TV box is running fine what I meant was I want it working in the car since I have to install it yet, I only tested in my electronics lab and it is working. I just wanted to wait before FW upgrade till I install the TV box in the car.

[MENTION=5990523]ProfessorKnox[/MENTION], I am glad if I could help with anything, about the GPS… my bad again LOL I meant GSM dongle with a SIM card, I was up early to today and tired after work so excuse my typo there :)

[MENTION=5661976]ev1966[/MENTION], I don’t have any problems with the unit at the moment, I just wanted 2 way CAN-Bus working with 1.99, I don’t have steering wheel controls but lights staying on is a issue for me to be honest, so probably I have to test it or stay on 1.70 and wait till newer version comes out, but I am glad I can rely on you when I bump in to problems, thank you :)
[MTCB Android Head Units Q&A] ev1966:
@ Reptile-X: I am on 'MCU.img' 1.77 with 'update.img' 1.99 and i still have 2 way can (with doors open and closed icons on my HU). I can recommend this upgrade.
[MTCB Android Head Units Q&A] ev1966:
Here you have my APK from v1.77.

Another thing with the control of this DTV box: you are aware that the touchscreen control for the DTV box has to be done with the

Arrow

keys left and right, and up and down on the screen? It's a bit lousy and different then usual control on the music and radio app.
[MTCB Android Head Units Q&A] Reptile-X:
Ah great thanks! :) I have to figure out how to do that with mixing MCU and Update since I didn't read whole thread but that will be okay.

And thanks for the Fakra adaptor you posted, I will order one directly. I have a similar adaptor in my Car right now but the dual connectors did not fit so I had to modify the adaptor (not the one in the car) but I had still bad reception, so I pulled out the blue +12V wire since it was not working.
[MTCB Android Head Units Q&A] agentdr8:
You've got a custom recovery like TWRP? If so, you should be able to use adb via the front usb port while in recovery to push a stock version of the build.prop.
[MTCB Android Head Units Q&A] edding7:
I didn't flash TWRP. I just installed nandroid backup and I made a backup selecting TWRP format. That's a collection of files with *.win extension that I don't know what to do.
[MTCB Android Head Units Q&A] agentdr8:
You should be able to put the update.img on an sdcard and flash that to get a working system again. I guess if Nandroid Backup doesn't do restores, then you'd have to install TWRP to restore the files made.
[MTCB Android Head Units Q&A] ProfessorKnox:
Thanks a lot.

Yes, I know that TV is to be controlled by the up/down/right/left soft keys on the touch screen. But that on-screen menu doesn't appear at all when touching the screen.

With my previous radio (Krämer Automotive KR-G6+) I had a Tristan Auron DT2420 Diversity DVB-T receiver with fantastic reception due to diversity. This box has the same on-screen control principle (maybe from the same manufacturer similar to all the KGL radio variants discussed here). But I can't use that box with the Erisin radio because of different connector type And different control voltage levels (DT2420 = 12V/5V, Erisin = 12V/3.3V).

---------- Post added at 11:40 PM ---------- Previous post was at 11:37 PM ----------

[MENTION=255279]Reptile-X[/MENTION]: No probelm at all. At the end of the day it's just to have a common understanding :)
[MTCB Android Head Units Q&A] ev1966:
As your reseller has told you, the fault could be in your HU as well as in your DTV box (or the cable between them?). What FW are you on at the moment? Maybe an upgrade could do the trick?
[MTCB Android Head Units Q&A] typos1:
Not as far as I am aware. but I cant see any reason why it would not work.

I m sure someone in this thread months ago managed to get the Android update (but NOT the MCU, that was left as standard) working from one unit on another make.

There are links to the firmwares for all versions at the begining of the thread, you can download the Klyde one, unzip it and try the launcher apk on yours.
[MTCB Android Head Units Q&A] ev1966:
Where did you connect the 12Volts for the reverse camera? In my car the 'cam in' red powercable from my HU doesn't supply the voltage when switching the car in reverse. Did you also ground the pink brake cable as mentioned in another post?
[MTCB Android Head Units Q&A] Skitals:
Do you have another link to your adapter? I'm getting "This page has been moved or is no longer available" on the ebay link.

Nevermind, got the link working. I have the same adapter... two of them actually :) I have taken my dash apart 100 times now adjusting things, I've definitely got a good connection on the adapter pins. So on that note... which radio do you have in your car? KGL/KLD/GS?

Last edit: I see you said you have the same radio as Reptile-X (KGL). So you have no problems with your radio reception?
[MTCB Android Head Units Q&A] Reptile-X:
I got the +12V from right back-up light, I didn't use the power cable from the Unit, and I always ground the brake wire :p just to avoid the limitations you could get with handbrake on.

The reason I didn't use the cam in wire is because it is not needed and it is also not a power wire, it needs to be powered so it can switch the screen to the camera, but our unit does that itself when you put in reverse gear since it has CAN-Bus, so the red cam in wire is totally useless for us.
[MTCB Android Head Units Q&A] ev1966:
XDA didnt allow me to put URL's because not having 10 posts. but now I am over this restriction :cyclops:

this is the link directly to the UK ebay shop instead of the german link.

http://www.ebay.co.uk/itm/160768506253?_trksid=p2059210.m2749.l2649&ssPageName=STRK:MEBIDX:IT

I know what you're talking about. Testing and installing apps on the HU in your warm and convenient home, then putting it back in the car and so on, and so on :eek: Could be your fakra connectors are damaged because of too much (de)connecting, they are not meant for this.

---------- Post added at 01:11 AM ---------- Previous post was at 12:49 AM ----------

Next to this Huifei KGL, I have an AN21U also. For that AN21U I bought two Fakra adapters, the last adapter (that I linked) worked the best. On my Erisin 9401 I connected this Fakra adapter and found out the FM reception of the 9401 is much much better then on the AN21U. The basses are a bit strong, but I prefer stronger basses then poor reception. Besides the main reason I chose for this Huifei was the ability to use Tomtom navigation. This wouldn't work on AN21U: no GPS reception. Where Igo and Google maps received GPS, Tomtom couldn't.

GPS reception on Huifei by the way is much better on Huifei then on AN21U. I even receive GPS inside my house. That was almost impossible with AN21U.
[MTCB Android Head Units Q&A] ProfessorKnox:
HU was delivered with V1.77 and I updated to V1.99.
[MTCB Android Head Units Q&A] illmatik:
Has anyone considered putting a second battery in their car to allow for using the headunit while parked?

My E39 M5 is very finnicky when the battery starts to get low, I get weird alarm problems that can be embarrassing in the middle of the night. Because of this I dont even use the head unit for a few seconds unless the motor is running.

Anyone got a solution for this?
[MTCB Android Head Units Q&A] easyguy:
Where is everyone buying this unit from? Anyone bought from amazon? I just want the universal version.
[MTCB Android Head Units Q&A] agentdr8:
Some are buying from eBay, others from AliExpress. I got my universal KGL (which happens to be for sale) from an AliExpress seller, and my new Toyota-specific KGL from a different AliExpress seller.
[MTCB Android Head Units Q&A] kwalsh24:
Alright, so I have edited the AVIN program so that it installs and shows up as SiriusXM, even have the exclamation mark image changed to how I want it. The only thing that wont change, no matter what I do is the same icon thats displayed in the apps list, the icon I made shows up fine when I got to uninstall/install but when it goes to showing in the launcher it shows the old icon. Is this file stored some place other that in the apk file?

Ive included a copy of what I have if anyone wants to use it with their SiriusM radio via the AVIN app, you will likely need to rename/remove the stock AVIN app for this to install.

Also a photo of the app running
[MTCB Android Head Units Q&A] Reptile-X:
Hi ev1966, sorry to quote you again, I have a question regarding the upgrade combo you use, zorantoma mentions here about radio stations showing on his cars MFD, does that work on your upgrade too? Since he is using 2.02 FW.

Also he was using KGL4, which one did you use, did you also use xposed framework, he mentions about that here

Thanks :)
[MTCB Android Head Units Q&A] ev1966:
Two way Canbus

I don't know exactly what people mean with

two way

canbus on VW models KGL is 'working'. What does exactly work then? and what does work with one way canbus?:

1. Airconditioning display on HU

2. Steering wheel control by canbus (volume up and down, and track up and down, telephone call button)

3. Reverse signal, to display reverse camera when putting car in reverse

4. Display on high end display of the car (next to speedometer) of radiofrequency and music track

5. Control of front lights of the HU

6. Dimming the screen when switching on the headlights of the car.

7. Doors open and closed.

8. Parking sensors

9. .....

I have an ES9401 Huifei KGL (mcu177, FW199) and for me number 1,2,3,5,6 and 7 work. (number 8 i see occaisonally but i dont have parking sensors)

Is there anyone who has display on high end screen of a VW (MFD) working, who can take a picture of Radio and Music app on their VW display? What mcu and fw are you on?

On my AN21U this display feature worked but couldn't display RDS info from radio or track and artistname from mp3's. It just displayed radio frequency and track number and track time, so very basic.
[MTCB Android Head Units Q&A] grumetecap:
Last model

I talked to kaygele and they confirmed to me,the last model it´s the KGL-7698N,the others was quit :good: