yashsingh1/xdaforums huggingface dataset:
[MTCD Software Development] Dibsies:
I have a theory. By any chance, after you updated from the SD card, did you leave the update files on the SD card and is it still in the card slot? I'm wondering if the unit is randomly scanning the card at boot and re-flashing itself if it sees the files on the card..

BTW - my unit is also KGL, running 29.06.2016 also. It is of the brand name Volsmart. Pulling out the SD card and testing my theory.
[MTCD Software Development] Samoawbc:
After the first wipe i delete the .img from the SD, because i had the same mention, so i would say no.
[MTCD Software Development] masri1987:
So. I pressed Xtrons further and they provided me a ROM\MCU package dated 08\05 ( August 5th ) after i told them it's WINCE that they sent me updates for.

I can share if y'all want
[MTCD Software Development] Damit17:
I also had the same problem using Malaysk V5 thought it was just a freak occurrence but I guess it wasn't. Using Joying
[MTCD Software Development] masri1987:
https://1drv.ms/u/s!At2y0uI1XEtrggM0uJ4oL3E6Dyvd

It's for GS only
[MTCD Software Development] zoppa:
Great, loading it, thx a lot!
[MTCD Software Development] masri1987:
I haven't loaded it yet because i'm at work but let me know what mcu it is and what's it dated inside the rom :)
[MTCD Software Development] zoppa:
I can try it only tomorrow...
[MTCD Software Development] Dibsies:
When you say you are having the same problem, are you referring to the device completely restoring itself?
[MTCD Software Development] zorantoma:
The firmware is GS 1.75.1

I only flashed mcu and must say that bluettoth and responce time from tuch screen heve impruved.

Thank you for sharing.
[MTCD Software Development] zoppa:
Thanks for trying it and information! :)
[MTCD Software Development] trap63:
Xtrons updated for all GS 5.1 HU. ver 1.75

add my download link here: https://drive.google.com/open?id=0BxORzE28l_E3bFVwLWxxemU2LWc

sent by my S7edge
[MTCD Software Development] Damit17:
Yes but with out my apps so now I have reinstalled and have done a complete titanium backup with backup file on a sd card
[MTCD Software Development] ikerg:
If mcus are not compatible why all manufacturers release at same time the same.versions numbers for their mcus?

Enviado desde mi D6603 mediante Tapatalk
[MTCD Software Development] zoppa:
What does a version number say about compatibility?
[MTCD Software Development] ikerg:
Nothing...but there seems to be specific hardware or combination that all mcus have in common for a mcu software release at the same time.

Of course it is proven that mcus from different manufacturers are not compatible

Enviado desde mi D6603 mediante Tapatalk
[MTCD Software Development] zoppa:
Yes, they are not the manufacturers of the core system software obviously, but get that customized or for customizing by themselves.
[MTCD Software Development] CadillacMike:
Joying posted an update for August 10th:

https://www.carjoying.com/Joying-blog/42.html

Date: Aug 10, 2016

Fixed some bugs.

Update Head Unit Android 5.1.1 lollipop MCU file and Update file
[MTCD Software Development] Rexbron!:
Just flashed the Xtrons GS 1.75.1 (August 5th) update and the bluetooth hands free issues seem to be mostly resolved. Still a bit slow for inbound calls to register on the unit but functional!
[MTCD Software Development] marganron:
can i update from MTCD_KD_V1.71 to Joying or something?

i have couple of problams, i can't here the bluetooth from my spearkers, and can't change LED color. Also, this week i started my car and it took forver to start and when it did, i was factory reseted.
[MTCD Software Development] sterod:
[MENTION=3590033]Malaysk[/MENTION] - here is your new ROM base for V6 :D
[MTCD Software Development] masri1987:
Nice. I will now flash the MCU since i don't need the ROM, but i am curious to see if the ROM fixes some bluetooth issues with OBD.. anyone care to try?
[MTCD Software Development] ikerg:
I have a HA 1.63c

On stock ROM.

I have 2 USB drives with mp3 connected to USB2 and USB3 ports (USB1 I use for mirroring)

If playing usb2 music when booting headunit always start music player on the song I left, but suddenly goes to USB3 and start playing from there.

It seems there is some priority on USB3?

Any solution?

Enviado desde mi D6603 mediante Tapatalk
[MTCD Software Development] trap63:
Just flashed....still trouble with OBDLINK for Dashcommand. ****!

sent by my S7edge
[MTCD Software Development] sterod:
I also just flashed the MCU image only, not the ROM. The MCU version did not increment from 1.63_1 so either the MCU in this August 10 package is unchanged, or they forgot to increment the version number.
[MTCD Software Development] masri1987:
Hmm that doesn't make sense... I'll report back shortly. going to flash the mcu
[MTCD Software Development] zoppa:
August 10 image is Joying, not the Xtrons.
[MTCD Software Development] masri1987:
LOL

thanks , it's still too early for me to function , i'm bound to make mistakes :D
[MTCD Software Development] sterod:
From what I understand, MCU update files are common across all brands of MTCD units.
[MTCD Software Development] zoppa:
No, they are brand specific. The dupdate images are flashable on other brands.
[MTCD Software Development] ikerg:
Joying states that their ROM is only for joying headunits...but I think they are covering themselves

Enviado desde mi D6603 mediante Tapatalk
[MTCD Software Development] DonAlex90:
I tried to update my joying to the august version.

downloaded both files

put two files on sd card and connected it over gps slot

updated found - install - and aborted

dl.dropboxusercontent. com/u/9405381/001.jpg

(remove space after the dot, pls)

Who can help? currently there is a jan version installed
[MTCD Software Development] Tommy.Z:
same here, update aborted. (i only updated MCU, so the failure is in dmcu.img)
[MTCD Software Development] trap63:
Flash updated to Malaysk v5

sent by my S7edge
[MTCD Software Development] DonAlex90:
If i install the Malaysk rom, how can i went back to the original firmware? with 2 files from the original rom and recovery mode?
[MTCD Software Development] Stephan_R:
And works on every MTCD GS ?

I need update. I have trouble with BT and handsfree. One call it works and next call doesent works.

The same problem with all of my 4 MTCD GS 1.61 systems. (4 Cars)
[MTCD Software Development] trap63:
mail sent to Xtrons tech support
[MTCD Software Development] masri1987:
eh they won't care.

I went through this with their forum support (sophia) as well.

They will tell you

A) return it so it can be repaired (which to you and I is nonsense)

B) Buy their OBD adapter, which doesn't fix ****
[MTCD Software Development] trap63:
they answer me quickly

Da: techsupport@xtrons.com

Data: 12/08/16 08:50 (GMT+01:00)

A: trav

Oggetto: Re: PF75HGTA still issue about BT pairing and Tom-tom GO [XTRONS: 625947]-

Hello.

Thanks for your suggestions, that's very helpful.

We do notice the bluetooth part of our units need to be improved.

I will forward your suggestions to our tech support team for reference.

Back to the problem, you are still unable to use Bluetooth properly, right?

In this case, i think you can only return the item to seller and get the unit repaired or replace if possible.

I didn't find any order under your name on our website, so i assume you got the unit from other seller.

Please contact them, they will help you get this resolved.

Should you have any other problem, please feel free to contact us.

Regards.

---------- Post added at 08:04 AM ---------- Previous post was at 08:03 AM ----------

I reply this way

Hi mate, thanks for quick response.

I bought HU on Aliexpress from a seller, Unionconn Car Audio Co., Limited. I bought these extra too: USBDAB01 DAB+ 2.0, 3G Wifi Dongle HSDPA Wireless 3GDONG008 .

About BT is properly operating with no noises and troubles with my S7edge, mirroring with EasyConnected that you pre-installed . The unit functions properly, no need to return to seller (this is not an HW trouble due to transportation or similar as occourences are wider, all users reported on XDA developer forum same issues), BT phone callings and A2DP it’s ok on S7Edge.(SM-G935F)

If you wish to forward to technicians these my adding suggestions might be very useful

You preinstalled the version no. EasyConnected.HT03.4.1.12-16. I installed the new one version, the 4.20, it’s ok and equal, more performant the 4.20.

When you try to connect in Easyconnected (both version) via WiFi Android a Samsung 6Edge+ there is a fingerprint key trouble as on phone (USB debug ON and Eth) doesn’t appear the pop up request of allow connection. Therefore S6EdgePlus doesn’t run in EasyConnected.

This is a fingerprint issue.

We are speaking about S6Edge+ and S7Edge with Marshmallow (updated)

I think that the ROM you load in your HU has some issue about fingerprints key (i.g. Serial Id, key exchange for BT and some apk requiring network access and verification of rights)

Please if you would , me and some users on XDA Forum and Toyota global Forum for GT86 will serve and assist you in testing with beta ROM/Firmware.

I think that the unit is very good but it needs some updates. For users of Toyota GT86 and Subaru BRZ is very helpful for RaceChrono, Torque Pro

but BT issues are very hard for DashCommand and some Navi

(Tomtom)

If your technician would contact me directly, welcome!

Regards

Gian Paolo
[MTCD Software Development] Rexbron!:
Find your units on Xtrons's site and try the August 5th (1.75) Rom. I found that it has addressed the handsfree issues I was having earlier but ODB is still an issue.
[MTCD Software Development] Stephan_R:
My System isent listed at Xtrons Site. I think it isent a Xtrons. I had bought at Aliexpress. 2 for SEAT and 2 for Mercedes Vito.

The Design of the Desktop looks other then Xtrons. But it is a 1.61_GS

for Example:

de.aliexpress.com/item/Android-4-4-4-Quad-Core-1-6GHZ-8-Inch-Car-DVD-Player-For-VW-Volkswagen/32557021060.html?spm=2114.13010608.0.106.x8Iwq3

The fixing of OBD problems isent importent for me. But i need a good Phone connection. That makes me angry.
[MTCD Software Development] masri1987:
well you def got further than I did, hell i even did a youtube video for them so they can see me reduplicate the problem and sophia didn't care lol

i feel like we are going to have to wait for a custom solution honestly since it's affecting all MTCD units.
[MTCD Software Development] Stephan_R:
But is it right thats a firmware for GS fits on any GS or can i brick my system ?
[MTCD Software Development] ikerg:
Here you are the latest mcu and rom from HotAudio:

MCU:https://yunpan.cn/cBFUc8NXFWeY3 password: 2a30

UPDATE:https://yunpan.cn/cBFUmQaftq8Q9 password: 6aa4

I have not checked them as i am on holidays now

Enviado desde mi D6603 mediante Tapatalk
[MTCD Software Development] trap63:
it's incredible...my S7Edge operates with no trouble!!!....they don't know what they write.... I suppose they don't know ANYTHING of Android!!!! Shall we return all the units they sold?

Sent $25.00 to Malaysk for support next ROM release. the better way to spend my money.

Xtrons support mail answer (latest)

"Hi

Thanks for your email.

We do have some problems with Galaxy S7 and S6 in Bluetooth, it is not fully compatible

We don't think it is about the firmware.

You can contact the seller to return the item.

If you have any other questions please don't hesitate to contact us again.

Kind regards

Diana"
[MTCD Software Development] DanB0y:
Unfortunately your right, they dont know Android at all. They do know how to assemble the device and flash it with a generic chinese Android ROM, that's about it.

I would love to see a real Android 5.1 ROM (Like Cyanogenmod) on our head units, with an actual Lolipop Kernel (I think the kernel on our devices is a modded ICS or JellyBean era kernel)
[MTCD Software Development] masri1987:
So how do we get them to release source code?
[MTCD Software Development] doitright:
That is silly.

1) Cyanogenmod is buggier than Chinese Android anythings.

2) Nobody who deals with cyanogenmod is even close to competent enough to handle the MCU interfacing.

3) There is **NO SUCH THING** as an "ICS" or "JellyBean" or "Lolipop" kernel. The LINUX kernel is whatever version it happens to be. You can run Android 6.0 on kernel 2.6.30 if you like, or Android 1.0 on kernel 4.8-rc2.
[MTCD Software Development] Stephan_R:
Ok Guys, today i get from my Isudar Aliexpress Dealer a update Link for my GS System:

http://fs.163.com/fs/display/?p=X-N...Z45Nz7e-uKsoMS_FsxiEzSjIMy1WoEdaeSgIPuToGB73A
[MTCD Software Development] DanB0y:
Ok for the Kernels, but you cant be serious about CM vs Chinese Android reliability...
[MTCD Software Development] Stephan_R:
Flashed and works with version 1.75 !
[MTCD Software Development] trap63:
Is the same download of xtrons site

sent by my S7edge
[MTCD Software Development] Stephan_R:
But my system isent a Xtrons. Xtrons doesnt provide the same housed system like mine. It was the safer way for me to ask my seller. So i know that ein can take the downloads from Xtrons GS Systems in future.
[MTCD Software Development] leonkernan:
You think sending a few commands over a serial interface to the MCU is too difficult for any basic programmer to understand?
[MTCD Software Development] DanB0y:
[MENTION=3590033]Malaysk[/MENTION] is it possible for you to enable USB Audio driver in the kernel ? ?
[MTCD Software Development] trap63:
please support with donations [MENTION=3590033]Malaysk[/MENTION]. Few bucks from everyone...make a lot of support. It's our goal for Malaysk!
[MTCD Software Development] doitright:
It is if you aren't up to the level of "basic programmer".
[MTCD Software Development] trap63:
It's not so easy......please read before assuming this is a quite job for beginners...

https://developer.android.com/reference/android/bluetooth/package-summary.html
[MTCD Software Development] zoppa:
No way. I was running Cyanogen on some of my devices in everyday use and it was not comparable to some chinese Android implementations at all. It just worked, had lots of custom features and it did that with high stability.
[MTCD Software Development] Pattond:
I installed my MTCD-KD today, and initially everything was working fine. When I hit the "about" screen, it told me there was an update. I allowed it to run and it flashed my system with a ROM older than the one that was on the system.

The date before was July, now says June. I am assuming the flash card had an older version still on it, and that is what it "restored" to.

BTW, nothing seems broken except iGo has buttons that are cut off on the very bottom of my screen so I can't hit enter. That's the only place that happens

Does any have a link to the latest ROM for my unit? I just sent my seller a not
[MTCD Software Development] Pattond:
To make sure I understand this. Them DMCU file is for your manufacturer only (in my case KD) but I can use the anyone's ROM as long as its a MTCD system? Also, the ROM is the dupdate.img file, right?

I have the latest DMCU file for KD, I THINK i can use the latest ROM from Joying.
[MTCD Software Development] zoppa:
Yep, that's the current state of understanding.
[MTCD Software Development] ikerg:
Is rom from joying better than the one from other manufacturers?

I saw that is different but perhaps sbdy can explain their impressions

Enviado desde mi D6603 mediante Tapatalk
[MTCD Software Development] numind:
Is possible to install these JY images into MTCD_KGL_V1.40_ version?

I am exciting for modify the head unit with more performance..
[MTCD Software Development] xchim_24:
More than likely, just make sure you are up with the difference between the update and mcu files.

As for 'performance', think 'stability'. These head units have the processing power of a cheap android phone, nothing much can fix that.
[MTCD Software Development] numind:
I have just update from stock ROM to malasyk, and it works ( I have tried the MTCD) and I can proudly affirm, that performance is a bit better...

So now I only need to be sure which ROms are compatible with my model, and if I could upgrade MCU...I have seen the 2.83 but maybe is not comaptible, is a bit confused for me yet.

Thx for your work team anyway
[MTCD Software Development] xWarrock:
Hi

i have an erisin 4046 mtcd with installed malaysk rom, but i need to flash back to stock rom.

which one of the stock roms i need? :)
[MTCD Software Development] numind:
https://mega.nz/#!fUpwSQwA!bYZ0sN6ZgidmHKYusQOTGbpvr_vBU-jzb_A3fdorSws

MCU version

MTCD_KGL_V.1.65_1

Jun 18 2016 09:33:14

Android version

5.1.1

Kernel version

3.0.101+

root@chun-book #28

Wed Jun 22 18:06:36 CST 2016

Build number

rk3188-userdebug 29062016.19:0:3

---------- Post added at 12:29 AM ---------- Previous post was at 12:26 AM ----------

As I can't post a new thread, please crate new one with thsi new stock ROM form Erisin, for RK3188.

I have tested even the MCU and boots ok, now need to tests several ROms, like Joying, for find out best one...feel free to install any ROM in your MTCD head unit while the ROM match with mtcD and cpu version.

https://mega.nz/#!fUpwSQwA!bYZ0sN6ZgidmHKYusQOTGbpvr_vBU-jzb_A3fdorSws

MCU version

MTCD_KGL_V.1.65_1

Jun 18 2016 09:33:14

Android version

5.1.1

Kernel version

3.0.101+

root@chun-book #28

Wed Jun 22 18:06:36 CST 2016

Build number

rk3188-userdebug 29062016.19:0:3
[MTCD Software Development] xchim_24:
Don't confuse the MTCB MCU files with the MTCD files.
[MTCD Software Development] numind:
Yes, now I understand perfectly..mtcX must match B=B, D=D

dumb question: Do you know how to power up these head units? I have tried +12v to both pins but nothing...
[MTCD Software Development] xchim_24:
12V to both Battery and ACC (accessories).
[MTCD Software Development] ikerg:
+12v to battery and acc and obviously ground the black wire.

Enviado desde mi D6603 mediante Tapatalk
[MTCD Software Development] numind:
Believe me that I aleady tried both +12 and acc +gnd obviously, but it does not boot up...
[MTCD Software Development] ikerg:
Where are you getting the power from? Have you checked that there is 12V from power?

If using a power source from desktop computer you have to do some wire bridge to get power even the source was plugged to socket

Enviado desde mi D6603 mediante Tapatalk
[MTCD Software Development] numind:
Solved, these head units has one plug that must be disconnected in case of existing CAN bus , and must be connected if CAN bus does not exists, so that's the issue..
[MTCD Software Development] michaelpop:
I have updated my Joying MTCD-unit with the latest version dating Aug 20th. "Cool" thing proving that the developers of it still need to learn some things about android: after updating, steeringwheel buttons don't work. Went into Factory settings, observed that CANBUS was set to NO. I choose my car brand (VW), it requests a restart, then displays the logo of Volvo (at least the first letter matches, lol). Path on the video of reverse-camera disappeared, doesn't show up in the menu. Fixed one bug, created some more bugs, life's going on. :)
[MTCD Software Development] solmer:
Hi !, me too, you need to configure the Backview (reverse view) again in the driving options....One thing I love about stock roms is the bootup time, mine is 15".....
[MTCD Software Development] michaelpop:
Yes, boot time is ok. But in my menu I have only ruler (which is off because the camera has its own ruler graphic), no guidelines.

Still don't understand why there's no solution for the device to stay in standby. Ordinary tablets with 7000mAh batteries stay in standby for weeks. Adding a charging processor and a 20000 mAh battery would be great. Has anybody done such diy-upgrades? (sorry, this question is a bit off-topic, but sill...important)
[MTCD Software Development] solmer:
Yess....there's a post about using a external battery to keep the unit in standby mode...check at the Hardwaremods...

http://xdaforums.com/android-auto/m...iliary-batter-battery-isolator-radio-t3417196
[MTCD Software Development] DanB0y:
For those with MTCD_KD you will be pleased to know that the new update (08/25) enables subwoofer control =)

https://yadi.sk/d/Il_1MTF_uXDJn
[MTCD Software Development] solmer:
Only for KD? I've a JY.....
[MTCD Software Development] sterod:
The ROM's are interchangeable (dupdate.img) on the 5.1.1 devices, just don't try to flash the KD MCU (dmcu.img) to your JY head unit if the MCU is also in the package.
[MTCD Software Development] DanB0y:
Like sterod said, you can use the updated rom (dupdate.img) if you want, but you will not gain subwoofer controls this way.

The MCU is controlling the sound chip I think, so without an updated MCU firmware, those functions will not be working.
[MTCD Software Development] solmer:
Clear ! Thanks for the help :)
[MTCD Software Development] masri1987:
screenshot of this?
[MTCD Software Development] hadeone:
Lots of complaining that can be solved by the user being more familiar with these units. Those "issues" can be solved by going into the factory settings menu which you did. It's a universal rom / unit so why are you expecting it to be set up for your car automatically?
[MTCD Software Development] michaelpop:
Just expecting to keep some settings upon update, no exagerated expectations. And laughed that choosing Volkswagen displays the Volvo logo. Sorry, will keep my head bowed at the next update :)
[MTCD Software Development] Muhaal:
I have am erisin 4028a and my mfsw doesnt work.

Is therr a update available for this unit?

This one is on the unit

MCU -Version：

MTCD_KGL_V1.65_1

Jun 18 2016** 09:33:14

Android-Version：

5.1.1

Kernel-Version：

3.0.101+

root@chun-book #28

Wed Jun 22 18:06:36 CST 2016

Build-Nummer：

rk3188-userdebug 29062016.19:10:37
[MTCD Software Development] numind:
Use this, any mtcD ROM should work ok, just put dupdate.img into usb and use recovery for install

http://huifei.fs-fileserver.de/cont... ONLY NOT FOR MTCB /RK3188/2016.07.24_Xposed/
[MTCD Software Development] Muhaal:
How to enter the factory recory?
[MTCD Software Development] solmer:
Hi, usually the way to enter recovery is to push the reset button (with a paper clip or pin) while holding the power button until you see the first bootscreen or holding the button until you see the recovery
[MTCD Software Development] DanB0y:
Sorry I only linked the dupdate.img, here is the dmcu.img (25/08/2016) (Only for KD ! )

https://drive.google.com/open?id=0B5cFoMsVO2WOZWdWT0t1QzNadUE
[MTCD Software Development] ikerg:
Dada DA ASAS ARAFAA SEAS ASAS ARAFAA SEA ÁAAA

Enviado desde mi D6603 mediante Tapatalk
[MTCD Software Development] DanB0y:
Here it is, a slidder added for subwoofer volume.
[MTCD Software Development] masri1987:
man! okay, can't wait until GS does the update for this, need this
[MTCD Software Development] DanB0y:
You can try updating the dupdate.img I posted on the previous page, maybe the sub function will work..!

There is no harm in trying it, just dont update the dmcu.img
[MTCD Software Development] masri1987:
I assume that's the ROM..

Didn't someone note on the last page that it won't work without the updated MCU ?
[MTCD Software Development] DanB0y:
Yeah thats me. This is what I tought first, but after reading on a russian forum it seems people got the sub control with the ROM only.

Hard to tell because the translation sucks lol
[MTCD Software Development] masri1987:
lol, well,

A) someone should test it

B) if it does work, does the actual control work since hte MCU isn't updated to control the sound chip ?
[MTCD Software Development] DanB0y:
With new KD MCU, the unit dont shutdown anymore when I start the car :highfive: :good:
[MTCD Software Development] Mighty_X:
I have LM_V1.63_1 but i dont know how to extract it..:)
[MTCD Software Development] Muhaal:
fcuck..steeringwcontrol doesent work

kann i update the mcu?

MTCD_KGL_V1.65_1 is now on it
[MTCD Software Development] dongali:
Found a rom from xtrons that was last updated 8-5-2016 according to file name. It's for quad core android head units running Lollipop 5.1.1.

This seems to be the newest rom available so there may be some bugfixes included. The .rar contains dupdate.img and dmcu.img, how do I extract it to know if this is MTCD/MTCB or MCU?

Link to rom: xtrons.com/firmware_updates/latest-Android-5.1-20160805.rar