AC8227L Roms - Chinese headunit stereo - Android Head-Units

Hi all,
I have seen a few Roms here and there for AC8227L but I have a few questions, hope someone can guide me.
Is there a guide to backup the device completely before upgrading so that you can go back to the original rom incase of any issues?
Are there any roms that allow bluetooth pin/code input? I'm unable to connect to elm327 obd2 bt scanner cause I'm unable to enter a password. The obd2 scanner works on my phone, not on the headunit.
Are there any roms that are smoother/quicker? The fake 8.1 is really really slow.
Also any detailed guides for installing the roms? I couldn't find one or maybe I'm just too anxious to use one that isn't specifically made for this device.
Any tips and tricks to get the best out of the headunit? I have used HU reloaded and android auto works decently as long as you keep the resolution low. Youtube is really slow.
Can I install different apps for handling Bluetooth connections and/or Bluetooth music?
Hope someone can help. I've attached screenshots of my device so that I can get relevant information.
I have no issues flashing roms on my phones but I feel really anxious/uncomfortable flashing a rom on this, probably cause of a lack of information on what works and what doesn't.
Android version: 8.1.0
Memory: 1G
Storage: 16G
System platform: AC8227L
Can info: CVD1810_WJ
Build number: ZXDZ_2019.12.30.16
Mcu version : CVD1800-W_19.12.03_014
TP info: 1085x600
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Rooting my Pumpkin Android rckPX2 4.4.4

Hi, fellows
I have tried to root my head unit using: KingRoot, TowelRoot, Root Master etc and every single one failed. It is something that I am doing wrong? or it is not possible.
Please help!
Aparently, not possible...
What is a "Pumpkin Android rckPX2 4.4.4?" Searching for rckPX2 on the Pumpkin website turns up nothing.
My unit is this one on their website LM-C0676-US-A GeneralS: Android 4.4 Kit KatCPU: Rockchip PX2 Cortex A9 Dual Core 1.4GHzRAM: DDR3 1GBNand Memory: 8GBAudio output: 4*45W maxScreen Resolution: 800*480 Cold Boot time: about 25-30s - See more at: http://www.autopumpkin.com/car-dvd-...-control-for-toyota.html#sthash.FlVuWSf2.dpuf
Mike the Rockchip 3066 and the Rockchip PX3 seems to be the same processor just that the 3066 is used only in consumer products and the PX2 is used for consumer products and industrial applications.
I did post the link to both processors PDF to see if somebody can compare them and determine if I can use the Malaysk room with my unit.
Thanks for your help!
Sorry is PX2 not PX3.
The first 2 characters of Pumpkin model numbers indicate the OEM. I don't know who "LM" is, but it's not one of the known manufacturers of HuiFei type units. So, Malaysk's firmware is very unlikely to work.
mike.s said:
The first 2 characters of Pumpkin model numbers indicate the OEM. I don't know who "LM" is, but it's not one of the known manufacturers of HuiFei type units. So, Malaysk's firmware is very unlikely to work.
Click to expand...
Click to collapse
Mike I was told by Pumpkin that my unit is made by Senzchen Winmark Electronics Ltd in China. I went to their website and they sell my unit under a different part number DQ6514
mike.s said:
The first 2 characters of Pumpkin model numbers indicate the OEM.
Click to expand...
Click to collapse
Do you know were I can find more info about that? I'm really with itches to flash Malaysk's firmware in my AL-C0241 or AL-5701 (they are the same unit) and I really would love to have the original firmware to put back if something goes wrong...
Unfortunately I have not being able to find a workaround solution yet. I want to flash Malaysk rom like you but I do not want to brick the unit so I keep looking and asking for help. I have read and being told the following:
a) You need to be rooted to be able to backup your original rom.
b) You cannot go back to 4.2 either.
So the only solution is to find someone that can look in my case to both processors the rk3066 and rkpx2 and respond yes they are the same go ahead and do it.
Georgetech said:
Unfortunately I have not being able to find a workaround solution yet. I want to flash Malaysk rom like you but I do not want to brick the unit so I keep looking and asking for help. I have read and being told the following:
a) You need to be rooted to be able to backup your original rom.
b) You cannot go back to 4.2 either.
So the only solution is to find someone that can look in my case to both processors the rk3066 and rkpx2 and respond yes they are the same go ahead and do it.
Click to expand...
Click to collapse
How I understand you! But in my case I have the same CPU and display
nleitao said:
Do you know were I can find more info about that? I'm really with itches to flash Malaysk's firmware in my AL-C0241 or AL-5701 (they are the same unit) and I really would love to have the original firmware to put back if something goes wrong...
Click to expand...
Click to collapse
I just checked your unit in Pumpkin website and it has the rk3188 processor. Malaysk rom is for the rk3188 and 3066. If the only requirement to flash this rom is just about the processor then you should be fine but I do not know this, maybe somebody else in this forum could help with answers.
Georgetech said:
If the only requirement to flash this rom is just about the processor then you should be fine but I do not know this, maybe somebody else in this forum could help with answers.
Click to expand...
Click to collapse
I believe it's not the only but it's the most important. Come on guys, enlight the nooblets here!!! :angel:
Malaysk's firmware is meant for HuiFei type units. It is not known to work with others, even if they happen to use the same processor.
For instance, the Winlink/Ownice units (they have their own thread) will not work with Malaysk's firmware, even though some use the RK3188 and have the same resolution as some HuiFei type units.
thanks for your input Mike! this is the input that was missing.
that means I MUST put my fingers on my original firmware before try a rooted image.
Thanks again
Nuno
mike.s said:
Malaysk's firmware is meant for HuiFei type units. It is not known to work with others, even if they happen to use the same processor.
For instance, the Winlink/Ownice units (they have their own thread) will not work with Malaysk's firmware, even though some use the RK3188 and have the same resolution as some HuiFei type units.
Click to expand...
Click to collapse
Thanks Mike!
That closes this chapter. Next option is to learn how to code.
Thanks
Georgetech
Some posts moved to new thread:
http://forum.xda-developers.com/android-auto/android-head-units/al-c0241-al-5701-t3229364
My 2 cents
I would just try to install the rk3066 version of the ROM and see if it works. I don't think you will have a problem, it should work.
I accidentally was trying to install the wrong one on my radio and it just didn't install didn't mess anything up.
Unzip the Rom and put it on a SD card with nothing else on it.
Put the SD card into the GPS sd card slot while the headunit is on and it will pop up a box saying it found a update or something and
just reboot the until and it should start installing it.
Well at least this worked on mine. Just do it you don't need the old ROM. Hope this helps
Hi all, I've a similiar car unit, same CPU, same screen resolution, I've found a link to sownload an original rom:
http://www.autopumpkin.com/pumpkin-...i-odb2-steering-wheel-control-for-toyota.html
and here direct link:
https://mega.nz/#F!UE9ElapD!A-uTerI11qQ86r2ModVnyg
inside there are both firmware and mcu, but I didn't find something to dump it to explore system files, from images seem to be better than MCU I have mounted on mine (specific Fiat Punto Evo car unit), I cannot Root it, cannot install CWM (bad update.zip message!), please, there is someone that can suggest me with (if there are) utility to use to dump it? it will be interesting also to investigate about it, to try to find some easy ways to root kk 4.4.4 rockchip px2 devices.
Thanks in advances.
here some sources: (JB)
http://www.marsboard.com/marsboard_rk3066_download.html
I rooted mine very easy with couple key presses. There is a youtube video of it, takes 30 seconds

KR-6206 Kaier

Hello Guys
I need some help in flashing my device. I was going to try and flash my head unit today and tried a few things and now i cant even run the restore factory defaults. Well it runs and runs and runs and tells me not to restart the head unit but nothing happens so i switch off and on and its still good. In short i broke it.
The unit switches on and loads up fine but the wifi is all messed up i have to specify ip address to get anything to work.
My aim here is to flash to kitkat if not possible then back to factory. I managed to find this web site with firmware for my radio apparently. I cant find any instructions on how to do the update or do any kind of serial number matching or any kind of identification to avoid flashing wrong. I cannot post the link If you google kr-6206 Firmware its the first link and its by a website firmware-portal. I have registered to there site but cant find any kind of help or contact us. Even tho they say to contact them.
Radio details :
Android 4.2.2
MCU: 4.3.8-11-10-450101 WV(4.3.8, RDS, AD, BC6, Rohm37XXX, TEF662X)
System Version: 2.7.39
1.5GHZ Dual Core Cortex: A9
Ram 1GB DD3
8GB
Car DVD
GPS
TFT LCD 800*480 Screen
For SUBARU FORESTER Impreza 08-10
Bought on ebay in 2014
I realize this question must have been asked but not for this radio. If there is a good guide someone can recommend and also if someone can tell me if i can use the files i downloaded to try restore my radio to a proper working radio. Its really frustrating. I dont wanna brick the radio
Thank you for any help in advance
it think it's a unit based on http://4pda.ru/forum/index.php?showtopic=707069
see this thread on XDA
Think u can update to 5.3.17 MCU and Try the Navi IQ firmware it's pretty good
D3LTA said:
it think it's a unit based on http://4pda.ru/forum/index.php?showtopic=707069
see this thread on XDA
Think u can update to 5.3.17 MCU and Try the Navi IQ firmware it's pretty good
Click to expand...
Click to collapse
Thank you so much the king root managed to root my device. The only thing is none of those radios look just like mine. One very similar but not 100%.
The supplier from eBay sent me the software files but it dose not update android. Still stuck on 4.2.2. Im afraid to update. I need to figure out how to make a backup first before trying.
All and all the radio works now but no audio from the on board amp im guessing the power IC is fried.
Will keep you guys posted and thank you for the help
D3LTA said:
it think it's a unit based on http://4pda.ru/forum/index.php?showtopic=707069
see this thread on XDA
Think u can update to 5.3.17 MCU and Try the Navi IQ firmware it's pretty good
Click to expand...
Click to collapse
So the Agent sent me this. V2.9.5_20150513_800X480_SYSTEM_KED.rar. Its only 174.91M and contains 2 files. It did not update Android to higher version just the system version should i use the Version (2.9.1 800x480 - Most likely default software taken from AN-21U
@mxv68 - V2.9.1_20141217_800X480_SYSTEM_KED.rar) From the XDA forum will that work. Sorry to be so noob at this. First android device .
They have really not made this uncomplicated.
Try to use the navi IQ software from the 4pda forum, it's a hybrid rom.. it updates just Android so if it doesn't boot I can always go back if u have the old files.. with Phoenix suit u can make a backup.. but I didn't try it.
D3LTA said:
Try to use the navi IQ software from the 4pda forum, it's a hybrid rom.. it updates just Android so if it doesn't boot I can always go back if u have the old files.. with Phoenix suit u can make a backup.. but I didn't try it.
Click to expand...
Click to collapse
Thank you
I will only be able to check this out in a weeks time. I am going to be away. Will let you know as soon as im able to test.

MCU flash dump

Hi to all, i´m new here.
I have a headunit with this original specs from my notes:
Processor Type
QuadCore-R16 1.6G
Android version
5.1.1
MCU Version
5.3.19-7-10-656201-160925
System Version
4.5.10_20160909
Trying to update ROM accidentaly flash MCU with a firmware update that include MCU update and now radio, bluetooth and buttons don´t work.
I have a friend with the same headunit (bought at the same time and vendor).
Please if someone have a flash dump of my version (or update compatible) or maybe know a way to dump MCU flash with an apk or something.
Thanks a lot for help.
Best regards.
Hello ,
do you find a solution ? I have the same problem but mybe a different headunit. Normal MCU update does not work with all files i found.
best regards
Olaf
danielafs said:
Hi to all, i´m new here.
I have a headunit with this original specs from my notes:
Processor Type
QuadCore-R16 1.6G
Android version
5.1.1
MCU Version
5.3.19-7-10-656201-160925
System Version
4.5.10_20160909
Trying to update ROM accidentaly flash MCU with a firmware update that include MCU update and now radio, bluetooth and buttons don´t work.
I have a friend with the same headunit (bought at the same time and vendor).
Please if someone have a flash dump of my version (or update compatible) or maybe know a way to dump MCU flash with an apk or something.
Thanks a lot for help.
Best regards.
Click to expand...
Click to collapse
go to car settiing -> extra option -> pass 123456 -> set up button stereo function (such as wheel button key but it for dvd dashbroad).... and more thing in there such as radio region, model car ( it set up system to right model of your car).

can`t tell if my device is mtcb or mtcd

Hi all,
i recently bought this slim headunit from ebay:
7" 2 Din Quad-core Android OS Bluetooth 3G/4G Car Stereo GPS Radio MP5 Player
it says that the model name is SWM8802
the MCU is HY-M4-AndroidBT-8035EU-180512
the build # is
ALPS.LD_kk1.MP10.V2.3
the thing is, i want to be able to install android auto or mirror link and it fails and i would like to change the rom as it does not even connect to the phone
any one?
any one?
natiea said:
Hi all,
i recently bought this slim headunit from ebay:
7" 2 Din Quad-core Android OS Bluetooth 3G/4G Car Stereo GPS Radio MP5 Player
it says that the model name is SWM8802
the MCU is HY-M4-AndroidBT-8035EU-180512
the build # is
ALPS.LD_kk1.MP10.V2.3
the thing is, i want to be able to install android auto or mirror link and it fails and i would like to change the rom as it does not even connect to the phone
Click to expand...
Click to collapse
If it does not say MTCB/C/D/E in the MCU description then it is not any of them. There are many MCU variants out there.
looxonline said:
If it does not say MTCB/C/D/E in the MCU description then it is not any of them. There are many MCU variants out there.
Click to expand...
Click to collapse
thanks, is there another forum where someone might know what can i do with this one?
the radio app is bad and i cant install mirrorlink or android auto
natiea said:
thanks, is there another forum where someone might know what can i do with this one?
the radio app is bad and i cant install mirrorlink or android auto
Click to expand...
Click to collapse
Sorry mate, I can't help you with that one. If it's quad core it seems like it's an older unit. Could be a QD unit. There seem to be three main manufacturers, FYT, MTC and QD.
P.S. Please give me a thanks if you appreciated the little help I could offer.

Seicane Android 10.0 - cutom roms and root possible?

Hi guys, im sorry if im asking in the wrong place but I dis not know where to start but any help is welcome.
I have just recently purchased a Seicane android 10.0 2gb ram 32g rom head unit for my 2012 Hyundai Elantra from Aliexpress.
I have not yet received my headunit however was wanting to know if there was a custom rom option available for the android 10? I see that there are many options available for previous android versions however I am yet to see any info re android 10 and custom roms/rooting options for it.
If anyone is able to point me in the right direction it would be a great help. Not sure if i can post links to the actual product but can provide a link via message if necessary
What is your head unit, details needed, is it an MTCD?
marchnz said:
What is your head unit, details needed, is it an MTCD?
Click to expand...
Click to collapse
Thanks for the reply, I am not entirely sure if it is an MTCB unit. Please have a look at the attached specs screenshot and let me know if it looks like the unit you are referring to?
isameking12 said:
Thanks for the reply, I am not entirely sure if it is an MTCB unit. Please have a look at the attached specs screenshot and let me know if it looks like the unit you are referring to?
Click to expand...
Click to collapse
Unable to ID, suggest staring with wiki in my sig.
marchnz said:
Unable to ID, suggest staring with wiki in my sig.
Click to expand...
Click to collapse
Thank you for taking the time to reply. Perhaps I will need to wait to get my hands on the unit to see if I can get some further info. For now I will do as you suggested and read through that wiki!
If anyone else has any idea or can point me in the right area, please do so
marchnz said:
Unable to ID, suggest staring with wiki in my sig.
Click to expand...
Click to collapse
Hi there myseicane h6032n android 10 has today been received and I have gone into the settings and this is about the only info i can find relating to the software/hardware info of this device. Are you able to identify the unit and root custom rom possibility?
isameking12 said:
Hi there myseicane h6032n android 10 has today been received and I have gone into the settings and this is about the only info i can find relating to the software/hardware info of this device. Are you able to identify the unit and root custom rom possibility?
Click to expand...
Click to collapse
I am not familiar as is not an MTCD device.
I'd suggest starting with the wiki and searching the forums, search for k2001
marchnz said:
I am not familiar as is not an MTCD device.
I'd suggest starting with the wiki and searching the forums, search for k2001
Click to expand...
Click to collapse
Thank you for your reply mate. I have just download cpuz and have taken some photos of the device and os info. Does this help you in anyway pointing me in the right direction or identifying if root or custom rom possible? Kind regards
Hello everyone. I received an updated Firmware directly from seicane for their head unit. This is Android 10 update for the 2/32 GB unit. Everything seems to be working great so far on unit. If you would like to try it for yourself please feel free to download and install. I'm not too tech savvy so if you have any questions I'll answer them the best I can. Thought I would share for anyone to update their own unit if possible
PLEASE BE ADVISED YOU USE THIS AT YOUR OWN RISK!
I will not be held responsible for any damages done to your own unit.
Thank you!
https://drive.google.com/file/d/1Q9ns_Nojpl-8WAIvqgd0DMklUZJsjt7p/view?usp=drivesdk
C75 said:
Hello everyone. I received an updated Firmware directly from seicane for their head unit. This is Android 10 update for the 2/32 GB unit. Everything seems to be working great so far on unit. If you would like to try it for yourself please feel free to download and install. I'm not too tech savvy so if you have any questions I'll answer them the best I can. Thought I would share for anyone to update their own unit if possible
PLEASE BE ADVISED YOU USE THIS AT YOUR OWN RISK!
I will not be held responsible for any damages done to your own unit.
Thank you!
https://drive.google.com/file/d/1My4VMd5K270qSfEnHauErffJEOS5fSLZ/view?usp=drivesdk
Click to expand...
Click to collapse
Hi Montgomery, what did that updated firmware does that the old one doesn't? I got one 9" seicane unit and I would love to know a way that could enable the bluetooth settings so I could tinker with it and connect other gadgets.
Model&Hardware: NWD_K2101(T3)
QUAD-CORE T3 P1
PlatformVER: K20Q-2020/04/01[15:06:16]-V0.01
junilson said:
Hi Montgomery, what did that updated firmware does that the old one doesn't? I got one 9" seicane unit and I would love to know a way that could enable the bluetooth settings so I could tinker with it and connect other gadgets.
Model&Hardware: NWD_K2101(T3)
QUAD-CORE T3 P1
PlatformVER: K20Q-2020/04/01[15:06:16]-V0.01
Click to expand...
Click to collapse
I'm not sure what you are asking. You can open the Bluetooth settings if that's what you want to know.
C75 said:
I'm not sure what you are asking. You can open the Bluetooth settings if that's what you want to know.
Click to expand...
Click to collapse
The thing is, I can connect my phone to the radio unit, but I can't search for Bluetooth devices because there isn't a option for Bluetooth for it in the Android Menu.
Also the car unit doesn't run anything at background, except Maps or music app (only if it's playing something)
2/32g unit?
Thank you for the update. Question please... What do you mean by 2 unit? I have an Allwinner T3p1 k2001 Quadcore 1024x600 screen A23 Android 10 and wondering if I could use your update in case I brick mine while trying to root... Do you know if your update would be compatible with a quad core? Trying hard to find a way to root but cant find my device in twrp and super bummed no one has guided isoking with his rooting desires since I have the exact same model and MCU to the T. I appreciate any guidance you could give. Not sure which Magisk img or twrp would be ok to use for my device, all usb drivers I've tried do not work, and really want root access with Google install capability. Thank you!
These are Allwinner based on the Sunliq platform..Allwinner has locked USB debugging on these units, and there is a formal petition against them for that, they dont play clean with GPL..
Since there is no operational USB debugging, it cannot be rooted or custom recoveried for now..
Hello All.
I apologise if this is not the right place to ask this question..
I have a seicane head unit on my
2003 SL55 AMG [see link]
Can someone guide me to installing a new rom and if not, can I get android auto on this head unit..
I live in Canada and am very frustrated with the Chinese version of the android software
Link..
2001-2004 Mercedes-Benz R230 SL350 SL500 Aftermarket Radio
This android radio head unit fits to 2001 2002 2003 2004 Mercedes-Benz SL R230 SL350 SL500 SL55 SL600 SL65, supports GPS navigation, Carplay, AHD camera.
www.seicane.com
Thank you for any help
Sydsimm

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