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Dependencies between android rom and mcu firmware

Hi guys, during install of a HZC 2.58 firmware on my xtrons td101as (which had an older HZC version which I replaced with a GS version) I saw that there were 4 android files updated - so it seems that there are dependencies between android rom and mcu firmware version - and now I get the "version unmatched" message on my screen (but everything seems to work fine?)
So when I first install a new mcu firmware and then (after that) install an android rom it would override the changes made by the mcu installation?
What is the correct installation order when installing both android rom and mcu file and do I have to re-install mcu after updating the android rom?
Greetings
Detlev

First, I'm not an Android expert and I can't answer your question...
But I've never heard of dependencies between the 2 upgrades. If it's true, it's absolutely something worth to investigate!
You know what are the file changed?
I'm waiting for experts answer too.

OnkelDeffe said:
Hi guys, during install of a HZC 2.58 firmware on my xtrons td101as (which had an older HZC version which I replaced with a GS version) I saw that there were 4 android files updated - so it seems that there are dependencies between android rom and mcu firmware version - and now I get the "version unmatched" message on my screen (but everything seems to work fine?)
So when I first install a new mcu firmware and then (after that) install an android rom it would override the changes made by the mcu installation?
What is the correct installation order when installing both android rom and mcu file and do I have to re-install mcu after updating the android rom?
Greetings
Detlev
Click to expand...
Click to collapse
Set factory settings after updating MCU. Assume you documented your MCU settings before changing MCU to a differing manufacturer? Did you not realise that MCU update contains manufacturer/model factory settings config?

Unfortunately I don't know, what files where updated - there was only a message "Updatin android files 1/4"
I always installed without mcu config file and did the settings manually after install.
I installed the "HA" 2.59 mcu file (corresponding to the HA android file): "Version unmatched -01
Then I installed the old "GS" 2.56 mcu file - NO ERRORS!
What I don't understand: thougth the "Version unmatched -01" error was shown on the screen EVERYTHING worked without any problems? Strange ...
Now I do have a working system with HA 2.59 android version and GS 2.56 mcu - curious that the original "HZC" mcu file did not work too (I bought it with "HZC" mcu file installed, version 1.4 or so)
Greetings
Detlev

Android Radio update MTCD_KGL RK3188

Hello,
I have a car radio on the Android MCU system version MTCD_KGL_V1.53a_1 compilation number rk3188-userdebug 27052016.
Can I update to a newer version of android, because it is 5.1.1 now?
On the forum I found MCU updates for KGL v.2.83. Where can I find a ROM for my radio.
I tried to update the MCU, but unfortunately I'm making a mistake. I do not know what I'm doing wrong. I downloaded the MCU from the site
https://forum.xda-developers.com/showthread.php?t=3246386
I copied to the card and changed the mcu.img file to dmcu.img. Unfortunately, it lights up the error.
I do not know if I should update the ROM first and then the MCU first.
Greetings Piotr Z

Lollipop
piotr_waw said:
Hello,
I have a car radio on the Android MCU system version MTCD_KGL_V1.53a_1 compilation number rk3188-userdebug 27052016.
Can I update to a newer version of android, because it is 5.1.1 now?
On the forum I found MCU updates for KGL v.2.83. Where can I find a ROM for my radio.
I tried to update the MCU, but unfortunately I'm making a mistake. I do not know what I'm doing wrong. I downloaded the MCU from the site
https://forum.xda-developers.com/showthread.php?t=3246386
I copied to the card and changed the mcu.img file to dmcu.img. Unfortunately, it lights up the error.
I do not know if I should update the ROM first and then the MCU first.
Greetings Piotr Z
Click to expand...
Click to collapse
I have read that if you upgrade your android system to the newer version; something about the GPS maps will no longer work. Not sure but you might want to look for that.
I have the same system A-Media Auto, MTCD-KGL_v1.53a_1
I found a newer version KGL_10-20-2016_1.92a_4_dmcu.img but I can't get the Head to find the .img file
I tried the SD card in the slot, GPS slot and a USB cable. Still System Update cannot find the .img file. Frustrated I gave up.
I did find that the SYGIC maps works good with the unit. I didn't like the IGO that came with it and wiped the map SD.
I also loaded Car Launcher v2.4.074 which is more appealing.
The backup camera is kind of squirrelly, works when it wants to.
Thinking about getting a new head unit with a flat screen, no buttons and knobs, but not sure if I want to go with a name brand or pure android version.
Will try to insert an image of my unit but I am new at this. The image wants me to put in a http url
/home/pok1/Downloads/20190316_134105.jpg

How to backup MCU and Stock Android on MTCE unit?

I've searched and searched and searched, but I can't seem to find a clear answer...
I recently purchased an Eonon-branded PX5 Android 8.0 MTCE_WWW unit (which I believe is VERY similar to MTCE_KLD). I really want to start "tinkering" with the unit (Viper4Android, custom ROMs, etc), but I want to make sure I have backups of the stock MCU and stock Android install before I start messing with anything - so that I can always get back to where I started if need be. Unfortunately, I'm having a hard time getting the MCU and Android firmware files from Eonon (still trying though!) - so I want to see if there is any way that I can create backups of the unit myself.
If I root the unit, can I then make full backups of the MCU and Android? Meaning backups that I can use to recover the unit if something goes wrong? If so, what applications should I use to create such backups? I've very familair with Android devices and rooting in general, but I'm used to having and using a custom recovery for stuff like this - but my understanding is that there is no custom recovery for these units (TWRP, CWM, etc).
Can someone please help me out here? I feel comfortable rooting the device via the adb method. But once I have it rooted, how do I create full MCU and Android backups?
Thank you very much!

Hi,
1. Android ROM - use OTG method to get ROM extract.
2. MCU - you can't. Get original MCU or later from forums or vendor.

Thanks for the response... That's what I was afraid of - no way to back up the MCU. Unfrotunately, my unit is an MTCE_WWW (Eonon) and I haven't had much luck finding recent stock MCU's online - and so far, Eonon hasn't cooperated either (what's the big deal??). <sigh>
I'm not familair with the "OTG method" (did a few searches, but what I saw was just custom revoery to OTG device?). I did finally just root it and at least got a full Titantium Pro backup - better than nothing I guess.

Hello
Hello, I have a unit auto media 9 inch for vw golf 5, android 6.0.1. Cpu 4 quadcore gpu 4D MALI 450 MP4 1024X600. MCU VERSION : K_(6851)_90_C9_K3_CAN(DAZHONGO)_AMP . I do not know the processor frequency, is quadcore 1.2 mhz or 1.4 mhz or 1.5 mhz or 1.6 mhz. I dont know . My unit have 1 gb ram and 16 Gb Intern memory. Unit not have a name. Is made in china. I want update android to 7 version or another version android 6, because I have problem with this version. This version not respond gut. . Please very much can help me someone?

How to use otg method?
Hi, let me take back this conversation, because I have the same problem and no solution: what is the best way to backup my original ROM?
What means otg method?
Thank you...

marchnz said:
Hi,
1. Android ROM - use OTG method to get ROM extract.
2. MCU - you can't. Get original MCU or later from forums or vendor.
Click to expand...
Click to collapse
Just Wonder, about Mcu there are different like MTCE GS, KSP, LM and So on. My 2din had before trying to update MCTE KSP v3. 0.1 running Px30 with Android 8.1.
Trying to upgtade to Android 9.
And Wonder as the player is erased if can change from ksp to LM, or Wonder what is different?
Reg
Alex

Getting started with PX5

Hi all you clever people
I just bought this unit, https://www.aliexpress.com/item/7-I...igation-Sat-Nav-Radio-Player/32772807019.html, and installed in my car.
I have set up a bluetooth connection with my phone and using a hotspot from the phone to give Internet access.
I have a lot of questions, and I have searched this site, but haven't really found clear answers.
First the facts. here are the data from my settings:
Model: px5(1024x600)
Android version: 8.0
Android security patch level: October 5. 2017
Kernel: 4.4.93+
[email protected] #336
px5-userdebug 8.0.0 OPR5.170623.007 eng.htc.20180804
MCU version: MTCE_MX_V2.92.1
Aug 21 2018 20:10:21
CPU: 8 core 64-bit CPU Coretex-A53 @ 1.5G
Memory: 3891 MB
I know I'm asking a lot of questions, it's just a bit confusing to get started in this new world. I have numbered my questions, so it's easier to reference
1) I would like to get hands free phone calls and texting and navigation. I tried Android Auto, and that was very stable, but I couldn't get the phone to work. I assume thats because it's meant to be run on a phone and then mirrored to the head unit. Now I'm trying with Google Assistent, but it's not really stable. At first it worked pretty well, but now it just works as Google Now, so it won't make phone calls for instance. Any advice on what to choose, and how to get it to work?
2) I found this thread about a custom ROM, https://forum.xda-developers.com/an...t/rom-hal9k-rom-3-mtcd-e-head-units-t3847477/, my unit should be compatible for that, right?
3) As far as I understand, I can not go back to the stock ROM, if I install the new ROM. Then I should flash it with my old ROM. But how do I find out the name of my existing ROM? Is it risky to flash a new ROM, or will I always be able to flash back, if something goes wrong?
4) It's a requirement for the Hal9k ROM, that my MCU is upgraded to at least 2.93. I found this thread, https://forum.xda-developers.com/an...asaita-mcu-updates-rockchip-px5-octa-t3575155, but how do I find out if this MCU upgrade is compatible with my MCU?
5) Finally, I installed Tidal app, so I could download playlist for my head unit, but when I start the app and enter my credentials (and they are correct, because I get an error if I enter a wrong password) it just starts up with a black screen with a play icon in the middle, and previous and next symbols, but no menu, except for a hifi menu in the top left corner, where I can choose streaming quality. I will post a picture tomorrow. Does anyone know how to fix that?
Can someone please help me or at least point me in the right direction? I have spent multiple hours searching this site, but right now I'm a bit confused
Kind regards
Allan

Hi! Ok I should be able to answer most of these:
1) If you use the Hal9K 3.1.1 ROM then calling is linked to the phone through Android Assistant, but I haven't got a good solution for SMS at this stage.
2) Yes is is definitely compatible with your unit.
3) Not true, you can definitely go back, just flash a stock ROM. In my case I was sent the ROM by my seller Eonon
4) Your MCU is MX so just find the correct version of that. Check for the MX version here: https://forum.xda-developers.com/an...ent/mod-cs-x-mod-mtcd-e-mcu-firmware-t3816042
5) Not sure, but hopefully the Hal9K rom will help fix that!
Good luck Allan

millab said:
Hi! Ok I should be able to answer most of these:
1) If you use the Hal9K 3.1.1 ROM then calling is linked to the phone through Android Assistant, but I haven't got a good solution for SMS at this stage.
2) Yes is is definitely compatible with your unit.
3) Not true, you can definitely go back, just flash a stock ROM. In my case I was sent the ROM by my seller Eonon
4) Your MCU is MX so just find the correct version of that. Check for the MX version here: https://forum.xda-developers.com/an...ent/mod-cs-x-mod-mtcd-e-mcu-firmware-t3816042
5) Not sure, but hopefully the Hal9K rom will help fix that!
Good luck Allan
Click to expand...
Click to collapse
Thank you very much, it sound like it should be pretty safe to try the Hal9K ROM. I just have a couple of extra questions:
3a) My seller on AliExpress seems to have no clue, when I'm asking for stock ROM. But I should be able to find something close to my Stock ROM, if I don't succeed with Hal9K, right? Something like the Original Android 8.0 MX ROM mentioned in this thread: http://www.androidiani.com/forum/au...ndroid-rockchip-px5-2-4-gb-ram-32-gb-rom.html
4) I found this thread, https://forum.xda-developers.com/an...evelopment/update-media-auto-mtcd-mx-t3828177, with a link to yadi.sk, where I can find a MTCE_MX_V3.00.rar. That should be compatible with my device, right?
I hope you will bare with my ignorance, I'm really trying to get into this
Kr
Allan

Did you manage to get Tidal working ?

for Android Auto. I'm running the app called `Head Unit Reload` that would turn the Android system as host. essentially it's helper app for `DHU` (Desktop HeadUnit by Google for android auto debugging).
with HUR you can do either wireless Android Auto or USB tethered. This would handle SMS and phone call hands free.
I'm running Hal9K 3.1.1 ROM on my MCUE HK + Car launcher pro as launcher.

Wich mcu / rom version for GA9151B Eonon Head unit

hello and thanks first all for the lot of rom works,
i hope its the right place,
i have a GA9151B Head Unit from Eonon with android 8, dab+, wich is the right way and rom to upgrade it to 9 or 10?
wich mcu i must flash for mazda3 (2004-2009?)
the mass of roms and how to upgrad tutorials confused me
atached the unit data

what version is right for this unit?
Яндекс
Найдётся всё
disk.yandex.ru
flash only one of this? or more to do?
thanks

Here you will find all the information, including the tools you need to successfully update. The update also carries some risk and some types of bluetooth may not work, everything is described here:
upgrade method to another android version for Rockchip unit (px6 px5 Px30 and other )
following the official Rockchip upgrade tool https://forum.xda-developers.com/android-auto/mtcd-software-development/mtcd-e-android-10-upgrade-using-t4123933 if you are upgrading from the same version ex android 9 to android 9 you don't need...
forum.xda-developers.com
[MTCD/E] Android 10 upgrade using official Free tools
To upgrade a MTCD/E PX3, PX5, PX6 from Android 6+ on using official Rockchip free tools - a reminder, bringing together multiple threads. First note - if coming from Android 6 - early versions of Realtek dual BT/WIFI (type 2) are not supported...
forum.xda-developers.com

@Pavel-71
thanks for the replay,
my unit says in factory settings i have a WQ_BC6 bluetooth device, is this compatible?

There should be no problem with WQ_BC6. Before upgrading to android 10, I recommend updating the MCU. Save your settings before updating your MCU. In the factory setting, there is an export button for this. Locate the dmcu.cfg file and copy it to external storage. In case of problems with the control or the image after updating the MCU, you will return the settings with it.
The update is the same as the MCU update, just use dmcu.cfg.
You can download the latest updates, including your current one, here:
MTCE_HT.rar
drive.google.com
II do not bear any responsibility for any errors caused by the update. You do everything at your own risk !!!
Here is a video tutorial on updating to android 10:
MicroSD(gratis):
OTG(gratis):
Modinstaller Pro, paid (10 €):

@Pavel-71 wow thanks for the information,
last question on https://disk.yandex.ru/d/umCvHqCDzHccr/RockChip PX5 Android 10 listet diferent a10 versions, but no ht, its all the same? i cant find the diference. or what for a a10 rom with the orginal look is recommendable

HT firmware unknown. I tried HCT4 and now I have HCT7. As far as I know, they all work, the difference is in the launcher. Select by launcher. Here I made screens with a description of the ones I found: