yashsingh1/xdaforums huggingface dataset:
[Android Head-Units] pvalenzuelaw:
Hi all

I'm tring to root changan cs35 plus head unit, i follow your instructions but cant install "eu.chainfire.supersu_2.82.apk",

the head unit dont allow install o remove apps..

Note: The unit detect as jailbroken but dont allow install apks to continue with the procedure, message:

It is detected that the system is jailbroken, please contact the 4S store to upgrade and restore the system to repair the jailbroken system. Do you want to shut down immediately? For safety reasons, the system will shut down after 10 seconds by default.

Cancel Sure

I really appreciate any help...

Greetings from Mexico
[Android Head-Units] jhonnyuru2023:
hola busco el firware para una radio de auto china que esta trancada. no se si con esta foto sirva de informacion
[Android Head-Units] ardonhs:
Any root method? 🤔

Alps 8277l demo
[Android Head-Units] AiM2LeaRn:
i can confirm this root method to rood the unit works with the ac8257_demo aka ac8257 radio head unit.
[Android Head-Units] kavirz:
Yeah, the unit I do is slightly different. Different OS, different setup but works well. The units I keep have play store and you can install any app via flash drive. No limitations at all luckily. I would not even use one if I could not customize it.
[Android Head-Units] ric69:
OK I edited my post #18 : I tried to flash via sd, unit is totally bricked :crying: black screen for ever :silly: I probably broke boot partition
[Android Head-Units] ric69:
I uninstall my unit and revert to original autoradio, but when I look at the 2 USBs ... one is 6 pins, one is 4 but they have only and the same dimensions and colour cables, is it normal? If I could build a good USB maybe I could save this unit (in my dreams ok)
[Android Head-Units] kavirz:
That is normal. One usb is always 4 pin and one is 6 pin. I have requested the firmware for the device that I do so if I do get it, will post it here with the guide on how to flash. SD card flashing would be the best way to do it if the USB male to USB male cable does not work or pick up the device.
[Android Head-Units] ric69:
OK 4 or 6 pin are exactly the same so :p

Yesterday I removed the radiator and solder the test point like 4pda link >here< (not sure how this will help me but...)

I saw the processor is a MEDIATEK MT6323LGA 1831 AGAH CTG39 W03. Now, I'm blocked because I can not find the drivers for windows with this unit (on the MTK site, I found MT61, MT62, MT65 nothing for MT63 lol). The good news is that even without AC power, I hear a boot noise in unit when I connect the usb but blank screen and nothing in computer ... to follow
[Android Head-Units] kavirz:
According to MTK's website, all drivers are in a single install file. Please check below:

https://androidmtk.com/download-mtk-usb-all-drivers

Sorry to hear that the device is bricked. Can't you contact the seller for the software and the guide to flash the device? SD card flash will be the best option as I have used it a few times to create a recovery sd card to get the device to boot and flash directly of the card. It is a bit of a process but never done it on a head unit. Will have a look at my firmware folder at home this evening and confirm the software name. As far as I remember, you point the rom to the app and choose the flash drive. It does everything for you and you just insert it and it will do its thing.
[Android Head-Units] ric69:
Yes I tried those drivers and those from auto installer also, but there is no MT6323 on the list : https://androidmtk.com/download-mtk-driver-auto-installer

By the way I tried to put again a "8227L.upd" and "8227L.bin" on my sdcard, but nothing detected now :rolleyes:

No usb, no sdcard, it's gone bad :silly:

I tried to swipe screen too like this video without success : https://yadi.sk/i/Npjg2KTZ3Us2KC
[Android Head-Units] kavirz:
The process that I know is completely different. It is the process to recover a bricked MTK device. Forces the device to do a full flash based on the full ROM on the SD card. I will go through my folders and have a look in the next day or two.
[Android Head-Units] ric69:
I'm really not sure about MT6323 now, cause I see another module with MT6625, and the biggest one is Autochip :silly: (edit: probably normal as autochip is written on Flashtool too)

Test Point method is not working too (or I'm doing it wrong) ...
[Android Head-Units] kavirz:
Do you know what your MCU was before it broke? I been spending a lot of time on some research and got the following setup on the units I keep. I believe that all should match. Based on Android 8.1 go (APK level shows Android 6.0 which is funny).

Android: YT9218BC_00005_V003_20190307_HIFI - This is a update to add a Hifi option. Sounds nice

System: Android 8.1 Go

Kernal: 3.18.22

CAN Pro:: No canbus-V4.1-disconnected

Flash: 16G

CPU: A7 1.3GHz x 4

Radio: NXP6851

Capacitance: 10000 uF

Amplifier: AC7315 MOS bile duct 45W x 4

Display: 1024*600

MCU1: HW8227L-3.3-SW0-1.9

This is under Apps-> Car Settings->System Info.

If the above matches, then I have the stock rom and the guide to flash it. Around 1.8GB for both the video and software. Not bad English in the video as well but I know the guy who done the video as I saw them in Feb.

I am really starting to worry about the fake version of Android. It does suck but when I opened the device I have, it shows XYAuto which I have seen advertised on some sites (That the radio contains a XYAuto chipset). I thought it was read Android 8.1 but guess not. Still very smooth and optimized nicely so not really worried about it.
[Android Head-Units] dallen5:
Do you think it will work for??

Android: YT9218C_00005_V002_20191025_HIFI

System: Android 8.1 Go

Kernal: 3.18.22

CAN Pro:: No canbus-V4.1-disconnected

Flash: 16G

CPU: A7 1.3GHz x 4

Radio: NXP6851

Capacitance: 10000 uF

Amplifier: AC7315 MOS bile duct 45W x 4

Display: 1024*600

MCU1: HW8227L-3.3-SW0-1.3
[Android Head-Units] cafsta:
Hi Kavirz.

Awesome finding you here and even more awesome knowing that you are getting to really know your products so as best to help your clients. I think that's amazing.

So anyway, do you know how to root this device? There's a FM radio app I want to install but needs the device to be rooted.

Secondly, I also found that the android version is that of 6 and not 8/8.1. My question is though, are we able to install/upgrade to Android 8 or 9? Will it affect how the device works/responds?

Thanx for all your help thus far.
[Android Head-Units] ric69:
Hi, I think I don't have same unit

HMI : XRCH.O.01.2018.11.120830

MCU: TS907.181110

Kernel 3.18.79

ALPS 8227L_demo

Bootloader : Unknown :crying:
[Android Head-Units] ric69:
and here are the last moments before the black hole :(
[Android Head-Units] kavirz:
Sad to hear. Wish it was the same so that it could have been flashed. Also, the guide given for flashing did say not to flash preloader. That is odd.

---------- Post added at 12:51 PM ---------- Previous post was at 12:51 PM ----------

Do you have the Vehicle about screen? I believe it will work. Also send a pic of the unit.

---------- Post added at 12:58 PM ---------- Previous post was at 12:51 PM ----------

Do you have the APK for the radio? It should allow you to install directly without root.

Apologies if I was unclear earlier, but the OS shows Android 8.1 go. Even CPUZ shows Android 8.1 go but API level shows Android 6.0. They seems to have patched the firmware to display something different. In About device screen, if you select Android version, it will come up with the Marshmallow version of the hidden screen and not Android 8.1. This is bad but the device is solid though and everything works perfectly. The only thing the unit could have extra is an External Mic port, Wifi antenna and Full RCA's out. The first two are possible but not the last as there is no pins on the wiring. I got the breakdown for each pin on the back of the unit which does help.

I am going to try my luck with the manufacturer to see if they are compiling the firmware themselves. If they are, I want to get all the files and compile with a later version of Android and test on my test unit. Maybe we can get pure Android 8.1 Go as it is a light version or Android 9.0/9.1. This is a long process though and needs a lot of time.

In the mean time, I will be doing branding of all the 7 inch units and want to sell it on multiple online sites. I am South African based but the manufacturer and the shipping companies will ship world wide. It will also allow to try get consistent models into the market and allow me to fund the time needed to customize the OS and maybe even upgrade it to a newer version. Going to be an interesting few months ahead.
[Android Head-Units] cafsta:
[MENTION=4565376]kavirz[/MENTION]

I have the APK yes but it did not want to install. Could be it's not meant for our head unit but the creator of the app states that the device must be rooted to be able to install the app.

I am referring to a thread here on XDA for the app called FlatRadio I think it is.
[Android Head-Units] dallen5:
[MENTION=4565376]kavirz[/MENTION] It's a 10.1 screen
[Android Head-Units] kavirz:
10.1 inch screen should be on the same resolution. Think the hardware is the same but would not suggest flashing it unless something is broken with it.

Changing the firmware to show Android 8.1 GO but still running Android 6.0 is just deceiving and I don't see a point. Maybe the newer firmware will be more stable and run quicker, but still a risky update if you take a device from working to bricked.
[Android Head-Units] ric69:
I did not flash preloader with flash tool (I don't have USB connexion) , I just put "8227L-8.upd" + "patched.boot.img" on sdcard. First boot was OK, so I updated magisk and when I flashed zip with "direct install" ...bim ... brick
[Android Head-Units] kavirz:
That does not sound correct. Try install the APK from flash drive as it should work as the name is not the same as your current radio app. Root only required to force uninstall the original radio. With the units I have, you can uninstall music and video app which makes me believe they are not locked down. I would first use Titanium backup to make a copy of the original radio in case the new one does not work. Titanium backup does not need root to backup an app which is awesome. Back it up and try the new app as it should install as normal. The guide says root since for that device, you can't uninstall the original app without root.

I will see if I can pull some of the radio apps from the devices that come to me and I will then see if they work on the 7 inch unit and what the info says so I know which devices it is supported on.
[Android Head-Units] dallen5:
It's definitely weird it show Android 8.1 Go but it's 6.0...yea I need it to be a little bit more snappy
[Android Head-Units] kavirz:
If you want, I can upload and share the video and files to update it but I have no tested it so this is super dangerous. Anything else that we can check to verify the units are the same? Send me a pic of your car settings. Want to see if it looks the same.
[Android Head-Units] dallen5:
If it's super dangerous I'll just hold off on it
[Android Head-Units] Tof37:
Would be happy to help and take dust off my "compiling machine" ?

I've got a ac8227l too with "fake" android 8.1..
[Android Head-Units] cafsta:
I tried installing Titanium Backup but got the below error....

Okay I can't upload pics. Titanium Backup wants root access on my device. So it is installed but can't use it as it doesn't have root access.
[Android Head-Units] kavirz:
There are two versions of the app. One that requires root access and one that does not. To pull apps and put them back, you don't need root access unless it is a locked app.

---------- Post added at 11:35 AM ---------- Previous post was at 11:33 AM ----------

I am trying the same thing but these guys don't want to part with the ROM for android 9.1 as I believe they the only ones who have it. Sad thing is that is looks nothing like the AC8227l version so believe it might have the same processor but that is where the similarities end. Any guide on how to rip a rom from a device? I got a device (BMW specific) with Android 9.1 so I can try...
[Android Head-Units] Tof37:
No way to get a rom dump unless device is not rooted.. Titanium Backup should do the dump ..

With a system dump we should be able to "tweak" it.. But to compile a pure Android version we need the device tree.. Which depends on, what I understand, mcu...

I've got a head unit for bmw too but I don't think mcu are coded depending of the car... The can adapter make the link between the car and the android device.

Si clearly what we need here is the device tree in order to compile a stock android version and hopefully flashing it on the device...
[Android Head-Units] kavirz:
My understanding is very similar to your from my time of playing with Android. The OS is easy to compile but we need the Kernel to get the hardware to communicate with the Software. Now the Kernel is not open source and plus I believe that they add a lot to it so make it work as a car head unit.

Double we will ever be able to get the Kernel. Can hope a newer unit comes with a real update and that is full Android 8.1/9.0/9.1 which we can port with the same matching hardware.
[Android Head-Units] dallen5:
Does anyone know how to change the colors of the lights for the buttons?
[Android Head-Units] Doubletop12:
Hi

My unit matches the spec above except

YT9218BC_00005_V003_20190307_HIFI

is

YT9218BC_00005_V003_20190220_HIFI

and

If you've got the stock ROM and flash guide I would be interested in getting a copy please. If you've seen my earlier post you will know why. A hard reset has caused the soft buttons and the left of the touch screen to fail

Pete
[Android Head-Units] kavirz:
I do not believe that all units have the option to do this. Some units have single color LEDS behind the buttons. Some have multi color.

You can try doing it from Factory settings. Go through every option as I do remember seeing the option there. I did not test it though. Factory settings password is 8888. I would not play around with too many options as you can brick the device in there. So be careful and try it out.
[Android Head-Units] dallen5:
This was on my screen
[Android Head-Units] cafsta:
I have tinkered with this as well but it does nothing as far as I can see.

On a side note. Does anyone have the option for the auto shutdown timer?

I don't find this option on my head unit and it's a pain in the ass as the unit boots from scratch every time I start my vehicle. I can leave my vehicle for 1/2 minutes and it will cold boot again which takes about 40/50 seconds.
[Android Head-Units] Doubletop12:
Interesting. The reboot was the reason I went back to the vendor and complained. They then suggested I do a reset, which the stuffed the left hand side of the touch screen and the softkeys. After weeks of trying to fix it, BS from the vendor, involvement of Ebay and PayPal it is going back for a refund.

I took it out of the vehicle only about 3 hours ago and realised that I hadn't purged it of personal data. Setting it up on the bench I did find the auto shutdown timer. What is it for? I also found the factory reset (not the pin hole) that worked but dodn't fix the touch screen issue.

I may just go and get it out of the box again and try this auto shutdown menu.

I had found this shell script and wondered what it was for

Pete
[Android Head-Units] cafsta:
Hi Pete.

Is your device rooted?

How did you get to the system folders?

I'm not too clued up on how to understand and change values but I wonder if that which you've stumbled on can be adjusted to change the boot down time to say 30 minutes or a hour maybe 2.

This gives me some sort of hope though.
[Android Head-Units] Doubletop12:
No my device is not rooted but used ESfile Explorer to get to the root menus and get that screen shot of the script. However, not good news I'm afraid. After an hour of going through the menus and sub menus I couldn't find it again I'm afraid. I began to do doubt my own sanity.

Powering the thing up on the bench and using a mouse is far more productive that trying to do this sort of thing in the vehicle using your finger.

Pete
[Android Head-Units] cafsta:
LMAO...

Okay I'll play around with my unit tomorrow again and see if I can possibly find that and maybe try to change it.

I'll give feedback if I succeed with anything.
[Android Head-Units] Doubletop12:
I believe it was sub menu item on a black screen, so probably not under the direct Android settings which have white screens. Then again I'm begining to doubt if I saw it at all.

Good luck
[Android Head-Units] Gsxrspankya1:
Ok guys, I am in desperate need of your help, I flashed the patched boot image from this thread and flash tool told me that PMT for room had changed,so I needed to format AND download instead of just download option. I chose the format and download option, the flashing went ok, I restarted my unit and boom......black screen....nothing. So like a dummy I downloaded another scatter file and flashed it :crying:

And now my unit comes on, shows a Nissan logo and then locks up, forever displaying the Nissan logo until I reboot, repeating the process.

My unit unit is branded as "Eonon Ga2168k"

Specs:

Model 8227L

CPU AC8227L QuadCore 1,2 GHz MTK8227L

RAM DDR3 1 GB

ROM 16GB

IPS 1024x600

GPS MT6625L

Radio TDA7786

DAC TDA7851L 4x45W

Wi-Fi MT6625L 802.11n

Bluetooth MT6625L 4.0

Android 8.1.0

Kernel 3.18.79 (gcc version 6.3.1 20170404 (Linaro GCC 6.3-2017.05)) root@ubuntu #90 Fri Sep 14 11:04:34 CST 2018

Build alps-mp-01.mp5

Custom build alps-mp-o1.mp5

HMI KABT_010.2018.09.20.13.30

MCU TS907.180712

MEDIA HC_v1.0.0_180917_0900

BTV BT.18.08.27.0930

If anybody has the firmware for this unit I would pay for the flash tool required files, I just spent tons of money on subs and amps
[Android Head-Units] ramnkc:
Hi, you got any luck on this? As i also think the cold boot up is a real pain in the ass... most of the older Android base car radio had an option to go to sleep mode when acc off... i scan through the factory settings and car settings but its could not find it... really disappointing.
[Android Head-Units] cafsta:
Yeah unfortunately no luck. You need root access to get to those system folders and I don't know how to root this device and am scared to try.

I have seen on the 4pda forum though that these units will never have the shutdown delay feature. Why I don't know but these guys are quite knowledgeable with this device and many others.

They have all the info and files you will need to customize this unit but as I mentioned, I am too scared to try in case I brick my device which I can ill afford right now.

https://4pda.ru/forum/lofiversion/index.php?t936535-400.html

Follow that link. It's in Russian I think but my chrome browser automatically translates it for me.
[Android Head-Units] ramnkc:
I need to check impulse.zip but I am not able to download this

impuls.zip - https://4pda.ru/forum/dl/post/15535958/impuls.zip . Can anyone help download?

Update : Managed to download that file and its a microP program file and diagram connected to main ACC supply to the unit... because they claim with Android, auto sleep mode will drain the car battery fast. Which make sense but at least they give ppl option to choose what user want.
[Android Head-Units] dallen5:
They really do have alot of information on there but I'm like you I can't afford to brick my radio right
[Android Head-Units] azreen91:
I did tinkered with some setting in this keylight section and i ended up with bootloop. Everytime the system boots till homescreen/launcher, soft reboot occurs after 3-5 seconds. So you might want to be careful on tinkering unfamiliar settings in the factory settings.

I solved the issue by flashing firmware from 4pda forum but turns out that the firmware is not suitable for my head unit. Everything works fine except when I am connected to wifi.. the unit will get laggy especially when I browse or do anything online, and end up with screen freeze + buzzing sound. Unit will reboot after 1 minute or so.

Attached is my original firmware. I flashed YT9217C (rooted with twrp) having thought that it was similar with YT9216B (Same processor and same HW8227L). Any help would be much appreciated cause i cant seem to find any firmware with yt9216b written online.

I also attached videos of the issue im facing. Thanks!
[Android Head-Units] SoltanLahic:
8227L_demo- launcher pop up every few second

Hello

Friends, i have an issue with a new installed 8227L_demo

So, as you will watch (not attaching link, just please do search on youtube "8227L_demo- launcher pop up every few second" and watch to the video

Launcher popping up every 7-10 second and annoying . Is there any way to disable it or turn of popping up ?

As a troubleshoot i have reset to factory settings twice but it does not help ?

Please share your experience and try to help me to fix an issue

Thanks in advance
[Android Head-Units] Kamal12:
Rom

Hi,

I have received three roms from my seller in China all of Alps 8227L with android 8.1 with MCU ts907, if they will help you please let me know to send to you...

Regards,

Mohamed
[Android Head-Units] Adatar11:
I have MCU TS907 Alps 8227l Tesla style unit

Is this rooms ok for my radio ?
[Android Head-Units] Kamal12:
To be honest I can't say my friend. I have the same system but not the same screen or hard bottoms !

Sorry can't confirm
[Android Head-Units] Danniecares:
This is what i have

Android: YT9217B_00002_V003_20190225

System: Android 8.1 Go

Kernal: 3.18.22

CAN Pro:: No canbus-V4.1-disconnected

Flash: 16G

CPU: A7 1.3GHz x 4

Display: 1024*600

MCU1: HW8227L-3.3-SW0-2.3
[Android Head-Units] raphael.atienza:
Put five fingers on the touchscreen then go through that calibration then it will ask you if you want to program the touch buttons. Then do that. No need to go into factory settings.
[Android Head-Units] Doubletop12:
Raphael

Thanks for the suggestion

I think kavirz had advised me to try that but it didn't work, or didn't seem to work. It was a few weeks back and I can't recall what happened.

I will try it again

Pete
[Android Head-Units] raphael.atienza:
Like a long press, for around 5 seconds...

Even try both hands.
[Android Head-Units] Doubletop12:
Five Fingers

Raphael

I got the five finger touch to activate. I wasn't able to fix the problem

I'll try again over the weekend

Pete
[Android Head-Units] vonestrada:
anyone knows how i can change the boot animation for our headunit?
[Android Head-Units] Doubletop12:
I tried the five finger setup again. I get this screen

The spots are touched in turn and then it asks if I want to set up the buttons. The screen you get is the same as the one in the setup menu. I'm afraid none of this helps with getting the left hand side of the touch screen, which includes the soft keys.

I'd still be interested in a newer version of the firmware. The version that Kavir has availble is older that my original version and the one on his device. Although it does install fine.

Pete
[Android Head-Units] raphael.atienza:
Click on start to reprogram the buttons. This already happened to me when I was trying other Firmware...
[Android Head-Units] Doubletop12:
Thanks just tried that but nothing. The left hand side of the touch screen is not working. (200 pixels). a mouse works. I sometimes get the message "configuartion file is missing". This all happened aftre I did a hard reset using the RST switch

Pete
[Android Head-Units] raphael.atienza:
Can you try changing screen resolution to the correct one and the XY axis swap?
[Android Head-Units] lordboo03:
Has anyone been able to install firmwares with Flash Drives other than a 4 or 8 GB? I have a few different ones that are 16's and no lucky I've even reformat them to FAT32format an nothing shows up in system info or when I try to restart the device with the driver inserted. Also I've tried several different firmwares including the ones that are posted in this thread nothing seems to work. ?