yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] agentdr8:
I use the stock method:

private void setBrightness(int i)
{
if (i < 10)
i = 10;
IPowerManager ipowermanager;
try
{
ipowermanager = android.os.IPowerManager.Stub.asInterface(ServiceManager.getService("power"));
}
catch (RemoteException remoteexception)
{
return;
}
if (ipowermanager == null)
break MISSING_BLOCK_LABEL_30;
ipowermanager.setTemporaryScreenBrightnessSettingOverride(i);
}

You could try running this from a root terminal window: echo 1 > /sys/class/backlight/rk28_bl/brightness

If the screen dims, then I can definitely support it. The rk28_bl might be different on your device. You might need to do a find /sys/class/*/brightness to determine what the proper path is.
[MTCB Android Head Units Q&A] ESTIMULO:
Can you please give me the url from that thread because the download link is down.

Maybe i have luck and can find there my rooted rom for 1024x600 [emoji4]
[MTCB Android Head Units Q&A] typos1:
I ve edited my post - it was my mistake I put the wrong url.

You wont find rooted 1024x600 on there though. Pretty sure someone on here has rooted it though, check out the previous few pages.
[MTCB Android Head Units Q&A] angusc:
Hi guys,

Sorry to re quote my original post but hoping that some of you more familiar with the 4.2.2 head units might be able to advise about the notification bar issue I'm having.
[MTCB Android Head Units Q&A] ProfessorKnox:
Sorry to annoy you again. Unfortunately I didn't find any PDF file or a link to a PDF File at the first pages of the tread. I also didn't find a decompiled MCU.img. What I found were decompiled MTC...apks.

Maybe you can help me once more again?
[MTCB Android Head Units Q&A] typos1:
I m not sure I can, I ve been reading the thread since day one and there are lots of pages, maybe I got confused and it was those apks they decompiled ?

I do remember an example of the code being posted, did you see one ? Was it Dark Alex or KaiserSonny who decompiled those apks ? If so maybe you could contact them ?
[MTCB Android Head Units Q&A] coudu:
Tomorrow I have to test a new image I've just made for 800x480 and if everything is OK I'll post it and one for 1024x600 (can't test it but modded the same way so it should be OK too)
[MTCB Android Head Units Q&A] ESTIMULO:
Thank you! I will be your beta tester for 1024 version!
[MTCB Android Head Units Q&A] zorantoma:
Can you please post a screenshot of your about screen and the factory settings,before you upgrade. I have the	same unit and when i flash MCU 1.9X and up my button backlight stays always on and SWC get messed up.
[MTCB Android Head Units Q&A] Tung_meister:
My button backlight is on all the time as well. It came with MCU V2.02
[MTCB Android Head Units Q&A] zorantoma:
Ok. Thank you for the info. I'm in contact with Erasin for 2days now and none of the new MCU-s they send me works well :(
[MTCB Android Head Units Q&A] dsa8310:
TomTom

--
[MTCB Android Head Units Q&A] Tung_meister:
If you get one that works let me know.
[MTCB Android Head Units Q&A] zorantoma:
For me the best one til now is the 1.77 MCU version. Everithing works,the only thing is that it slows the unit down(my feeling).
[MTCB Android Head Units Q&A] Tung_meister:
I'll give it a go tomorrow night and report back.
[MTCB Android Head Units Q&A] agentdr8:
It was [MENTION=3077590]darkleo2000[/MENTION] that decompiled/decrypted the 1.86 MCU here.

MCU version shouldn't have an effect on Android apps.
[MTCB Android Head Units Q&A] typos1:
I think your problem is the fact that you are using a pirated app, nothing else, not the Android version definitely not the MCU, just that you were able to get away with it for a while, but not any longer. KK has more advanced security features than JB, so somehow I think its let TT know that the app is pirated and now TT has your device id and will no longer allow you to use it, even if you downgrade to JB.

I think the way round it if you dont want to pay for an app, is to use a free and open source nav app, like Navfree, BeOnRoad or OSMandMaps etc, or maybe try and change your device id ?

---------- Post added at 11:58 PM ---------- Previous post was at 11:51 PM ----------

Did your factory head unit have the button lights on all the time ?

My factory CD/Radio did not, but I retro-fitted the factory sat nav and the button lights on that were always on.

---------- Post added 18th November 2014 at 12:02 AM ---------- Previous post was 17th November 2014 at 11:58 PM ----------

I m sure there was a box with some code in it from the MCU in the post I remember.

Edit: just done a thread search and someone mentions the MCU from an AN21-U being de-compiled, I was reading both threads for a while, so maybe I m remembering a box with the MCU code in it from the AN21-U thread ? Its worth checking that thread and asking who-ever de-compiled it for tips, even though its a different MCU he might be helpful.
[MTCB Android Head Units Q&A] bourdier:
GPS Location Problem and Google Maps

Hi Everyone

,

I'm still having problem with the GPS after upgrade to KK. I made some test today and download some GPS fix from Google Store with not luck..

My problem that Google Maps while navigating looks like it stop every four/five seconds for two seconds and repeat that all the time.

On IGO run a litle better but for example I'm driving at 30 Milles by hour but in IGO show I'm at 40/45 milles by hour, normally must be a little bit slow, never more faster.

Another problem with the GPS is that for example the app that comes with the KK 4.4 never found my location, for this reason I think that the GPS never lock the location...

Any idea about what can I do or test?

The most important for me is Google Maps because I use everyday for work purposes.

Thanks
[MTCB Android Head Units Q&A] tomato18:
I'm using Google maps version 9. It's working fine for me. Which version are you using? Have you tried using earlier version 8?
[MTCB Android Head Units Q&A] reecho:
Installed the TomTom ape as usual. Moved the "tomtom" folder originally on ExternalSD to InternalSD. Worked like a charm...
[MTCB Android Head Units Q&A] agentdr8:
I thought the 1.3.2 release of TomTom was specifically to allow it to store maps on external SD on KK devices?
[MTCB Android Head Units Q&A] zorantoma:
That whoud be awsam if we could make our own mcu images
[MTCB Android Head Units Q&A] edding7:
Bricked Kit Kat

The first one semi-bricked kit kat upgraded!!!! Please Help!! :(

I have KGL-7620G Universal Unit (without knobs). I've came from 1.99 software and 1.86 MCU.

I've decided to start with KLD2_KK_800x480_141110_rooted_light.zip and 2.09 MCU. I've put update.img and mcu.img on the SD root as always.

The unit finished to flash and reboot, and from this moment it become to be totally worst.

All the screen go black for almost everything!!

The weird thing is i can't see even the recovery screen!!.

Anyway it still like working because i've learned the button pushing sequence of recovery (one short push change to update, one long push confirm). In this way i've tried to flash every version i've could. I do it in "blind mode" because the screen is totally black, but the backlight button respond to commands: (in recovery it smooth fade, in flashing mcu the change colors, etc).

Here comes the most weird part. Doing a "blind flashing of KK 4.4.2":putting the update.img on root and doing the pushing button sequence even with the black screen (one short push, other long push).. after a few minutes the screen goes to rear camera view and i have a Android toast dialog saying that it find a firmware update!!. That's weird, the screen is not broken!

Trying to apply this update doesn't help.

Trying to flash every combination of MCU+Android (4.2.2 and 4.4.2) doesn't work.

I'm totally stuck. Can anybody help me?? I don't know what more to do! :(
[MTCB Android Head Units Q&A] pakidermo5000:
Thanks for the code for dimming, I will give it try tonight or tomorrow.

REgarding TomTom. I managed to install it and get it working. The problem is well known for KitKat, and is what you actually mention. KitKat has some extra security measures and does not allow non-primary apps to write on external SD cards. That is why in principle you need TomTom 1.3.2, which was supposed to overcome that. If you install it and you keep the maps of the previous version (3.96Gb in Europe...) it does not find them. The reason is that Tomtom 1.3.2 is looking for the maps on the internal sd card and not in the folder "tomtom/com.tomtom.europe/" but in "Android/data/com.tomtom.europe/". So, here is the problem. There is no 4Gb in the internal memory. But, I found a "partial" workaround.

How to install tomtom

1- clear any previous version you had in the headunit

2- install tomtom 1.3.2 but do not run it, it won't find the maps

3- create the following folders in your internal sdcard "/Android/data/com.tomtom.europe/files/files"

* instead of "europe" you must use your own maps

4- copy the file ".metada.xml" that you have on your GPS card under "tomtom/com.tomtom.europe/.metadata.xml" to the folder "/Android/data/com.tomtom.europe/files"

5- open this file and modify the path that you find there to: "/mnt/internal_sd/Android/data/com.tomtom.europe/"

At this point you have the right file structure, but there are no files in the internal sd card.

You cannot copy all the maps there because there is no space. The solution is to create a link.

6- Download folderMount from play store

7- Create a link from /mnt/internal_sd/Android/data/com.tomtom.europe/files/files/ --> "/mnt/external_sd/tomtom/com.tomtom.europe/files/" (or wherever you have your maps in the GPS card)

8- "run the link, it is the pin icon. WHen created, you will see a green pin next to the link

9- run tomtom
​

This works. But I found a problem.

Tomtom is running and you turn off the car and the unit. When you restart, tomtom starts before the link is created, so it starts and finds no maps. After a little while the link is created, and then you can see the maps again but the settings, address, and everything that you set up earlier is gone. So, I guess tomtom is not writing the settings or because they are written on the folder that is linked, it does not find them and restarts as fresh.

The solution is to create the link before tomtom runs. Best option would be inputing the link code before anything is running. I do not know how it can be done, but I am sure it can. It is just an easy linux command.

To fix:

- create a link between internal_sd card and external_sd at boot before any app is working

- fix settings writing.​

WARNING:

If you uninstall the application when the link is on, it will erase the maps on your GPS card.

Hope it helped.
[MTCB Android Head Units Q&A] RmXsTyLe:
I have flashed this from Huifei Google Drive: KLD2_KK_800x480_141110_root_mod_boo_201411-17.zip

2 Problems: 1) i got no root (even i should have, super su is installed but if i open it it says it isnt installed and couldnt be installed), 2) if i click on "Location" in settings menu i get an fc

Any suggestions ?
[MTCB Android Head Units Q&A] mrbubba999:
Just trying to sort out my touchscreen, which cable in the picture is the one that deals with it? The screen comes on, but no the touch side of it doesn't work
[MTCB Android Head Units Q&A] mrbubba999:
Picture would help!
[MTCB Android Head Units Q&A] ESTIMULO:
User malaysk from 4pda forum have a version for 1024x600 screens with root that works really well!

http://4pda.ru/forum/index.php?showtopic=557670&view=findpost&p=35850356
[MTCB Android Head Units Q&A] mrbubba999:
Yey! Fixed it, now to try and update it to kit kat
[MTCB Android Head Units Q&A] R4D3N:
Does anybody have a solution for my problems?

The MODE button bug I can ignore, but the rest of them?
[MTCB Android Head Units Q&A] parazit26:
does MediaMonkey works fine if you set it as default player via XposedMTC? can your skip tracks? it doesnt't work on my unit. when i press next, music pauses. But poweramp is working fine.
[MTCB Android Head Units Q&A] agentdr8:
Do you know the intents that need to be broadcast to control Mediamonkey? I couldn't find this info on their forum.
[MTCB Android Head Units Q&A] parazit26:
i am sorry i don't. i just installed it yesterday and really liked it, but the combination of XposedMTC and MediaMonkey doesnt seem to be really good. but if you need any info, i am willing to help!
[MTCB Android Head Units Q&A] Tung_meister:
Are 4G dongles compatible? for example would this work?
[MTCB Android Head Units Q&A] idr3s:
Mine came with the same mcu 2.02 and i was having the same backlight issue. Just use the 1.86 and that should take care of the illumination.
[MTCB Android Head Units Q&A] Tung_meister:
Yes I've just flashed the 4.4.2 update and 1.86 so the backlight issue is now gone. My main annoyance now is the canbus being reversed with the drivers door showing open when the passenger one is vice versa.
[MTCB Android Head Units Q&A] mrbubba999:
Mines like that on 4.2, no idea why
[MTCB Android Head Units Q&A] mrbubba999:
You've been given plenty of options and not using any of them
[MTCB Android Head Units Q&A] Tung_meister:
I imagine it's because it's either the MCU is only setup for LHD cars with no support for RHD or it's coded within the ROM, If there is an APK that controls the canbus output and it can be identified it could probably be decomplied and the images swapped round so that it displays correctly.
[MTCB Android Head Units Q&A] Stank0:
I'm guessing you don't like/can't use Google Maps and Navigation?
[MTCB Android Head Units Q&A] Stank0:
You're kidding, right?
[MTCB Android Head Units Q&A] mrbubba999:
I'm sure the official version of Tom Tom would work
[MTCB Android Head Units Q&A] Tung_meister:
Right I think I've worked out how to modify APKs and modify the correct one, it's the MTCCanbus.apk in the priv-app directory. I've made the alteration I think is required but I've no idea if it'll work as this is my first attempt and I'm away from my car. If anyone would like to try it here's the modified APK. This APK is for the 4.4.2 ROM so even if it does work I don't know if it would on 4.2.2.

The fix should show the correct door open rather than the opposite side.
[MTCB Android Head Units Q&A] mrbubba999:
I'd like to test it, but I have a JY unit and don't know which 4.4.2 ROM I need to use
[MTCB Android Head Units Q&A] Tung_meister:
I should be able to test it tomorrow evening, if what I've done is correct then I should be able to do the same for anyone's version.
[MTCB Android Head Units Q&A] zorantoma:
Can you also change the swc comands in the canbus apk? My canbus would be perfect if i culd change with swc the radio stations presets and not the frequencis.
[MTCB Android Head Units Q&A] ptclabs:
launcher on 4.4.2

Got in my car and it came up with the default launcher selection screen out of the blue.

Touch screen was frozen, but mouse worked fine.

Selected google now, and the touch screen came back on.

Everything works except gmail gives a google services error. I think there was a solution to that a few pages back.

I would call these 4.4.2 beta at best. Seems it would be better to wait for the factory to release some of the small fixes in it.
[MTCB Android Head Units Q&A] Mister-Z:
which is the most stable or with less errors MCU versión for Klyde?

I have the 1,86 and I have some stability problems (radio or gps signal may lost)

I have a Klyde versión for 2006 Toyota RAV4.

thx.
[MTCB Android Head Units Q&A] Stank0:
Yeah. The navigation part is still beta. But what's wrong with that? What do you think this 4.4.2 update is?

I'm a truck driver and I'm using this "beta" for navigation every single day. Also I've got Garmin GPS for truckers.

Sometimes Garmin gets it right, sometimes Google gets it right.

But Google is a clear winner in real time traffic and in convenience of giving you options of choosing from three different routes visualized right on the map. Also, without Google maps I'd have hard time to find about 25% of places and with satellite imagery and street view it makes it easy to find EXACTLY where you need to go.

Only two things would make it perfect. If they'd bring it closer to the desktop version by adding multistop and by being able to customize the route by point-and-drag.

I believe standalone GPS unit are obsolete nowadays. I use one only because it has truck specific routing (which I don't trust 100% anyway)

Sorry for OT and I will shut up now.
[MTCB Android Head Units Q&A] Derell:
GS KK

I have change my screen resolution to 1024x600 200dpi (nova launcher ) on the Kk Root Rom and all looks nice and running well {Radio,musik,igo etc) but i can get the screenshot apk get running even a 3 part from playstore. Any solutions??

The Rom is awesom,thx a lot :D
[MTCB Android Head Units Q&A] ptclabs:
GSE

I still get google service error with this one, and no gmail
[MTCB Android Head Units Q&A] RmXsTyLe:
Noone here to help me ? Can someone ask or tell user "booroondook" from 4pda.ru this question ?

thx in advance
[MTCB Android Head Units Q&A] parlato_edoardo:
Little update on my JY:

Rooting => SUCCESS

XPosed + Framework => SUCCESS

XPosedMTC 1.2.8 (stable) => SUCCESS

Not working:

- Prev/Next/PlayPause buttons on most alternative music player

- Screen rotation with most rotation apps (I installed HereMaps Beta for test purposes, changing the maps SD source show a popup window with text that can't be scrolled, screen rotation would allow me to confirm the change but no app allow the screen rotation)

- While listening to radio, switching to custom music player doesn't kill or mute the radio app that keeps playing in background.

Few questions:

- What about upgrading to KK? Is it already possible on JY? I know that kernel should be already update but is the current JY MCU working with KK?

- Will updating XPosedMTC to 1.3 (stable) fix some of the issues above?
[MTCB Android Head Units Q&A] ktibor69:
MCU

What is the MCU version number of your HU? I have v2.07.
[MTCB Android Head Units Q&A] mrbubba999:
Working fine here, I had to disable the inbuilt media player first
[MTCB Android Head Units Q&A] typos1:
A few pages back I posted a link to some custom firmware form 4pda.ru that is supposed to be compatible with 4G dongles.

There is, its called MTC Can Bus.

EDIT: I see youve found it !

---------- Post added at 11:25 AM ---------- Previous post was at 11:23 AM ----------

No, hes right, google maps is absolute rubbish.

---------- Post added at 11:27 AM ---------- Previous post was at 11:25 AM ----------

Lol, I thought you were being sarcastic ! I un-installed google maps after it mis-directed me for a second time, its rubbish, much better to have full mpas downloaded on your device anyway. I m not going to repeat the options you have for a third time, dsa8310 !

---------- Post added at 11:31 AM ---------- Previous post was at 11:27 AM ----------

You could ask webdude12 for his launcher app the MTC Widgets apps (radio, music, bluetooth) replace the Klyde versions in system and you d effectively have a KGL 4.4 update.

---------- Post added at 11:32 AM ---------- Previous post was at 11:31 AM ----------

Side load it or use market helper.

---------- Post added at 11:34 AM ---------- Previous post was at 11:32 AM ----------

Any version you want as long as it is the correct screen size for your unit (prob 800x480) and you donot change the MCU (MCU must be from the manufacturere of you unit, wheras the Android update can be from any of the manufacturers, KGL, KLD, RM, GS, JY etc)

---------- Post added at 11:36 AM ---------- Previous post was at 11:34 AM ----------

The GSE is a known issue with KK and can be corrected be re-installing GS, you can install gmail yourself the playstore.
[MTCB Android Head Units Q&A] Mister-Z:
Ok, thanks.

If the 2.08 version not work properly, Is there option to return to previous versións?

I'll try to install Android 4.4.2, but I doubt if I should update the MCU or it will have more bugs.

thx
[MTCB Android Head Units Q&A] ktibor69:
External mic

How can I do the externel microphone solution with JY type player?
[MTCB Android Head Units Q&A] Warlord711:
Did you maybe set the "RUDE" Option within factory settings ? This seems to switch door indicators, maybe its for left-hand vs right-hand steering wheels.
[MTCB Android Head Units Q&A] leckig:
buyers' guide?

Could anyone give some tips on what to buy? What are the most stable, user-friendly units?
[MTCB Android Head Units Q&A] ktibor69:
Steering Wheels

How can I see the key code of the button of Steering Wheels?
[MTCB Android Head Units Q&A] mrbubba999:
Go into the app and on the left side there is a section that is white, this logs them all. Even you use one of the controls, a number appears
[MTCB Android Head Units Q&A] typos1:
Can anyone with a Klyde unit and a CAN Bus adapter tell me which wires from the headunit are tx and rx ?

I know where the wires are on the connector that plugs into the head unit (the 2 next to the orange "reverse in" and pink "brake in" wires) but I dont know which is receive and which is transmit, hoping that there will be markings on the CAN Bus adapter to say which is which (I dont have a CAN Bus adapter).

Thanks
[MTCB Android Head Units Q&A] mrbubba999:
Has anyone managed to get their unit to switch off when the key is taken out? (VAG range of cars)
[MTCB Android Head Units Q&A] edding7:
I could do more test for my bricked KGL-7620

All mcu/software i tested end with a "no signal" screen.

It seem to be like my MCU most of the time switch to rear gear view signal.

I start to think is a hardware fail, but it's weird it started to fail just when i upgrade to KK and mcu2.09

Does Anybody has 7620G unit?

Does anybdoy have a bricked unit?

Any ideas?
[MTCB Android Head Units Q&A] agentdr8:
Use Car Service app. Should resolve that.

I think the headunits are setup for landscape only. You could also install AppSettings and change the DPI for that app to make everything smaller.

If you're setting a custom music app in XMTC preferences, you have to use the MyMusic launcher instead of the native app's launcher. This is basically a wrapper activity that turns off other audio sources before switching to the Android source.

If you're switching to your music app via SWC, that should already turn off the radio source when moving to music.

---------- Post added at 10:35 AM ---------- Previous post was at 10:32 AM ----------

Not sure about that type of car, but unit power off is controlled by the ignition wire (ACC) which should only receive 12V when the key is in and turned to accessory. If your vehicle has canbus, this is most likely part of the adapter wiring, and you'll need to determine if the canbus adapter is wired correctly. Sounds like the adapter is sending 12V constant to your ACC wire.

Have you tried disconnecting your reverse wire on the headunit? Maybe it's receiving 12V constant.
[MTCB Android Head Units Q&A] Reptile-X:
My unit does go off when I turn the ignition off, but from what I have seen on other forums VAG cars have different comfort modules in different regions of the world.

You might have wrong/faulty CAN-Bus adaptor but In most Euro VAG cars the red 12V wire lose its power when we turn off the ignition, if yours don’t you could try to get power from cigarette lighter to the red wire of the unit.
[MTCB Android Head Units Q&A] Warlord711:
Check if you got a red cable with a black plug+coupling. You must disconnect them on VAG CANBUS installations.

CANBUS is doing the job and turn on/off the headunit.
[MTCB Android Head Units Q&A] typos1:
Just for information : some one on 4pda.ru has bought a unit and discovered its an "MD" version - another new manufacturer :eek:

Looks very similar to RoadMaster, made by Rhythm Audio we think, a company discussed on here months ago.

And did someone want the icons on the reverse camera removed ? Heres a link to MRCBackview without icons: https://yadi.sk/d/rbc6mmbscp6GF

Replace your current version in system/app with this version, set permissions to 644.