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Full AOSP on MStar Cedric3 head unit

Hi!
I bought it on eBay one head unit with the following originals characteristics:
CPU: Cortex A9 Dual-Core 1Ghz
GPU: Mali 400
RAM: 1GB DDR3
Android Version: 4.4 (but really is 4.2)
MCU original Version: 4.3.11-1-03-615101-150112
System Version: 2.9.5_20150413
Anyway, I tried to update the MCU with the head unit who brought extra settings -> model choose, but the upgrade to 4.3.13 everything works fine except the lights that indicate the volume level, and that is not moved up or down the volume.
I suppose that changing the MCU has stopped working. How could recover the original MCU?
I contacted the seller, but no longer sold items on eBay and I doubt I answer.
Thanks in advance!!

Hi ,
There is a setting that could rectify your problem. You had the setting open on your 2nd picture (model choose).
You probably have to try several models to see if one will work for you. Each time you choose one the unit will set the parameters then reboot ... do not interupt this.
After it reboots try your various controls to see what has changed.
My unit is the 2 knob version AN21-U. When i installed the RED MOD firmware my volume knobs were non functional. After trying several models from the "Model choose" screen in the extra settings menu it corrected my problem.
Hope this helps.

Quincydog said:
Hi ,
There is a setting that could rectify your problem. You had the setting open on your 2nd picture (model choose).
You probably have to try several models to see if one will work for you. Each time you choose one the unit will set the parameters then reboot ... do not interupt this.
After it reboots try your various controls to see what has changed.
My unit is the 2 knob version AN21-U. When i installed the RED MOD firmware my volume knobs were non functional. After trying several models from the "Model choose" screen in the extra settings menu it corrected my problem.
Hope this helps.
Click to expand...
Click to collapse
Hi.
I have not been lucky.
The seller gave me the original MCU, but when I try to put it through a USB not done properly.
If I add to the list that is in the internal memory, it does not appear to select .

Hello all, I'm looking for the updated MCU files and android updates if possible.
Does anyone have a link to the files please please!
Thanks

Hi All,
Does anyone know the code to get into the developer options for this android head unit?
Full AOSP on MStar Cedric3 head unit​
Thanks in advance!!

pure android 4.4.2 ---> 5.1.1 editable or not, please?

Hello everyone,
I hope I'm posting in the right place if not please forgive me please!
here I would like to buy an android post on aliex ......
it is 4.4.2 and I wonder if it's possible to spend in 5.1.1
thereafter please ??
is that it is a good model to buy ??
here is some info I found on this model:
-------------------------------------------------- -
0. Pure Android specification R16
1. R16 CPU Cortex-A9 Quad Core, 1.6G Hz
2. android version 4.4
3. ROM 16G GB iNAND
4. 1.6G DDR3 RAM
5. MCU Version: 4.3.16-10-E40101-150901
6. Resolution: 1024 * 600
That is the main information I have on this android radio
I have several links, but I do not know if I can post here Leins
which would be easier to get your views
Thank you for your valuable info please, I expected returns before my purchase
Thank you !

Need help for update my android double din device RK3066?

dear all
i need help for update my android double din device RK3066 ? im not sure if its RK3066 or RK3188
i attached the screen shot from my device hoping anyone can guide me to the correct download firmware :
my current is :
android 6.0.1
CPU intel ATOM quad core GPU4D mali 450 RAM 1GB DDR3
MCU version :
2017-05-25 JY_(NOR)
please take a look in the attached photo for more info

It's neither - This is an Intel unit not Rockchip

10x millab
can you point me to a new firmware for this hardware ? the version that currently installed is from 2017
thanks

can someone help me with this one"? i relay need to upgrade firmware due too some problem with this device
which firmware should i look for ? a link will be great 10x

Eonon ga9150A Version Unmatch -01

Hello,
I need some pro help, the shop that sold me the eonon official radio on amazon give me a file to put on a sd card to update, but that didn't do nothing , and i still with the red message saiyng «Version Unmatch -01» and then «112B3672F9E3A3E58400 WWW 00000000»
it beeps every 10 seconds and the videos it´s not displayed , like on youtube etc, almost 2 year like that. What is wrong? What i need to update? The android version or the mcu thing ?
Some specifications:
PX5
MTCE_WWW_V2.80_1
CPU 8 Core 64-bit Coretex-A53 @ 1.5G
4gb Ram
Thank you in advance

foiioe head unit help

I think i made a error in buying this unit of ebay £155.00
set it up thought brill till i realised no multi screen no hidden menus cant even close apps
so tried to root with kingo no success as any bought one like this or had the same issues
and can help
Android 10.1.0
Storage: 32GB
DDR: LPDDR3 2GB
CPU model 4 core ARM cortex-a7 1.3GHz
Resolution 1024*600
kernel version:Linux version 3.18.79
CAN Pro: v3.0.30_4.0.36
MCU: CM_20.01.18_10.11
APP: 007_16_1.0.59_200318
My system version says OS_V2.1.5WF_GWI_DNYB
And when i click system update on line i get
current version 011019 test-keys_20200318-2112
I also download a settings app and on about it states its android 8.0
And the error i get from Kingo root is 0x173EDC
so if anyone can help please its driving me mad

I have a radio I got off of aliexpress which has these same settings, wondering if anyone has found a way to flash over this?