yashsingh1/xdaforums huggingface dataset:
[Android Head-Units] Chrisschick:
YT9218C - navi-button w/o response and other issues

I've got a noname headunit with Android 8.1 (says in settings 9.1), which runs on firmware AHD_000005_V004_20190715_HIFI. (XY AUTO: 3.0 (8227L), MCU:3.1). I can tell it's Android 8.1, since it has the "Oreo"-easteregg...

It needed some time to figure, how to connect the navigation-button on the "homepage". But whatever app I fill in settings, or chose (even GMaps), the button doesn't work at all. I tried various launchers from other devices (which install w/o root) but none of them has a working button, so I changed temporarily to CWG-launcher from playstore. Do I miss something? Is there something wrong? Is the firmware broken? I tried another fw from here with date code 20190906 but radio says wrong version, when I click "Android Upgrade".

Other issue I have, when I open the media player and try to switch to navigation, the music stops. I'm using builtin media player and TomTom Go as navigation-app.

Is there a way to hide the top notification bar permanently w/o root?
[Android Head-Units] amit_coolcampus:
Hi,

Attached screenshot has my android unit specifications. Only difference I can see is its DDR 2G and Flash 32G. I follow this procedures to install rooted ROM and anything else mentioned on this thread, can I do that?
[Android Head-Units] amit_coolcampus:
I tried to connect my 8227l Android Radio to my laptop windows 10 but it's not being detected. What could be the reason?

1. Mtk drivers are installed.

2. USB Debugging is ON.

3. Tried both the USB slots of radio with all the 4 usb slots of computer but it's not being detected in device manager.
[Android Head-Units] mino182:
Factory settings missing

Hi, please could you advice me, where I can find factory settings on this unit?

[IMG="AC8227L"]https://i.ibb.co/n70gQ6V/IMG-20200608-202658.jpg[/IMG]

It has Android 9.1 and I only find car settings...

Many thanks.
[Android Head-Units] stevemoffler:
Would this fix a no touchscreen issue, screen was working fine, then I flashed via usb and touch screen stopped working. I swapped the board from an 8227L over to the YT9217H and screen is still not responding.
[Android Head-Units] amit_coolcampus:
How to use android auto. Can you please share the link or help?
[Android Head-Units] fani:
How did you know its not being detected? walk me through the steps you took.
[Android Head-Units] amit_coolcampus:
I opened device manager and tried connecting it through USB but there was no change in the list. USB debugging on the radio is on. MTK Driver on PC is installed.

I open mtk droid tools and, connected USB and it didn't appear there as well.
[Android Head-Units] amit_coolcampus:
Ok, my phone is detected now. But i am not able to create a scatter file. I am getting this error(attached) in MTK droid tools. And There is only one entry in the blocks map.

I checked in SP flash tools by following the memory test procedure, it doesn't detect device either. Do I need to root it first?

It shows in device manager. It is detected in adb as well.
[Android Head-Units] Smarty_009:
Hi friends, after lot of search somehow i I have landed here.

Yesterday i have purchased a new Android head unit. I want to take a full Backup of it's unrooted stock ROM with stock recovery. So that in case i ever brick it i will be able to flash it to factory state easily. Can someone please direct me to the link or procedure of how to make a full system Backup.

Details are as below:

Android YT9216B_00002_V004_20200319

but CPUZ says build ID: YT9218_0002_V004

OS: 8.1go XY AUTO:3.2 (8227L)

CAN Pro: 3.0 ( 8227L)

DDR: 2G. FLASH:32G

CPU: A7 1.3GHz x4

Amplifier AC7315MOS bile duct 50Wx4

Display: 1024x600

MCU: 3.1 ( 8227L)

MODEL Name: 8227L_demo

Security patch Nov 5, 2017

Kernel 3.18.22 gangli@zx_poweredge_r730#6

Thursday March 19 20:51:37 CST 2020

Build No. Android-trunk-m0.AC8227L-V1.0

Custom build Android-trunk-m0.AC8227L-V1.0

Let me know if anything else is required.

I want the procedure to Backup the factory state.

Suggestions to try root and new ROM will be welcome.
[Android Head-Units] fani:
Procedure is in 1st post. :cowboy:
[Android Head-Units] Smarty_009:
Thanks boss... Sorry but I didn't request my requirements correctly.

Actually am confused to understand that procedure 100% correctly. I have android head unit described as above. It's 2gb RAM and 32 GB ROM variant. And I couldn't understand what address should I change for taking backup of my particular system. I want to take full image from address 0x00 to last byte that needs to be backed up.
[Android Head-Units] amit_coolcampus:
[MENTION=9936717]viktorsaari[/MENTION] I need your help in rooting thr firmware, can you please help me?
[Android Head-Units] djmrloop:
Rds radio apk link not available, please update...

.

RDS FM Radio:

Radio app with fixed RDS, channel names on buttons and HiFi: (Link) (thanks sjguk)

Copy to FMRadio directory, rename to FMRadio.apk and change permission 764. (or 755 ?).

Link broken, anyone who can post a new link? Thanks a lot....
[Android Head-Units] fani:
its fixed now, try.
[Android Head-Units] sikloka:
FMRadio

hi!

I’m using root firmware, I changed the fmradio apk, the rds is working but :D

I can’t change the volume of the radio, it’s either on maximum or muted. I tried many fmradio.apk but this problem always occured.apk but this problem always occured. Help...

Thanks!
[Android Head-Units] Smarty_009:
Hi guys am on this stock ROM.

I have these problems.

1. Am not able to update Agama launcher. I already have licensed copy but it's not shown in Play Store.

2. Radio app only has FM option. I can't find AM in radio.

3. Whenever radio app and navigation app run together. The volume of radio is higher and navigation instructions play in background at lower volume. I can't understand the voice guidance. Navigation app couldn't silence radio app.

4. Split screen option is not working. To play two apps side by side.

5. When I try to install Google assistant from play store I get a message saying my device is not supported. I couldn't install and use Google assistant and Android AUTO.

Any help will be welcome. My ROM is stock ROM.
[Android Head-Units] Invincibl3:
Thank You!

Thanks mate!

I was able to revive my soft bricked device using the stock firmware.

I tried the rooted firmware as well, however, it has issue in volume control. Volume stay either completely full or muted, no mid way. Not sure if anyone else is facing similar issue with the rooted one.
[Android Head-Units] Y@RO:
Hello. I have a problem with this radio. I updated firmware this radio and the touch screen is not working well. it seems to me that first there is a bad resolution, and secondly when I click the right part of the screen the left side is touching. can it be changed somehow? I haven't backed up my old firmware, and I can't find the right one.

https://youtu.be/mruCP2kdgac

Update:

I make recalibration of touch screen, now is better but still got problem. I tried upgrade few firmware and in all still same problem. I also changed the resolution of the touch panel in factory settings, but still without any changes.

https://youtu.be/JZJgc-zhqr8

in the attachment there is a photo of the original firmware embedded in the radio that I did not back up.
[Android Head-Units] Smarty_009:
What is the resolution you have set.....
[Android Head-Units] Y@RO:
Now i have set "Resolution adaptive", i tried set 800x600, 1024x800, 1024x600, 1280x720 and still same problem.
[Android Head-Units] amit_coolcampus:
Hi [MENTION=9936717]viktorsaari[/MENTION],

Can you please help me root my device.

I have already shared specs in my previous comments.
[Android Head-Units] Maro433:
damm thank you thank you this ia the best easy way to make root the divice t
[Android Head-Units] Invincibl3:
Has anyone tried Google assistant? Any luck with it, i have tried and it is not working for me.

I have rooted firmware with magisk, is there any module that can help?
[Android Head-Units] Lollomix01:
Hi, I have Su 9701 unit 1/16 mega Android 8.1 stock firmware, i search FM Radio app with RDS function, any help?

Thx

Inviato dal mio Redmi Note 8T utilizzando Tapatalk
[Android Head-Units] Smarty_009:
If you find it let me know as well
[Android Head-Units] ppeti84:
Hello

I have the same device.

I'm looking for software because mine is bricked.

Can you do a backup?

Sorry bad english.
[Android Head-Units] 学长不穿鞋:
How to brush twrp and magisk? Can you tell me in detail? I won't, thank you.
[Android Head-Units] Ipse_Tase:
First and foremost, I want to thank [MENTION=9936717]viktorsaari[/MENTION] and [MENTION=6103945]gouster3[/MENTION] for posting detailed instructions and taking the time to provide the files as well.

EDIT: NVM ignore the comments about bricking it, I was able to restore from the from the dump I had, for some reason it never pushed it until I shortened the test points...which was not the case before.

I poured my heart to the wrong crowd :)

Word to the wise: "write memory" actually writes to EMMC...not sure how hard is to STOP calling it "memory", when it's a flash. Also, Russian for "How to fill a dump" is not exactly what Google translate thinks. It's not how to create the dump, but how to restore it. Lesson learned the hard way.

EDIT2: Also, in the spirit of sharing - the radio is a separate module (either separate chip, or built into the MCU) talking directly to the MCU and therefore you CANNOT mute it during navigation or apply FX like Viper4Android...it's not processed by the OS.
[Android Head-Units] Invincibl3:
Any success with Google assistant?
[Android Head-Units] Invincibl3:
[QUOTE=
[Android Head-Units] dtwenty:
Bricked Head Unit

Hello and thank you very much for the great work you are doing in this thread.

I hope you can help me if possible.

I have a head unit that when trying to root it gave brick (it did not turn on at all). Following the first post I have tried to flash all the firmware without any result except for the full memory dump with which the head unit turns me on normally but the touch screen does not work at all.

image of my head unit with memory dump (remove the spaces): drive. google. com/file/d/1dgi3D-135VmFVL6z0NhVMIbqx2naYfXs/view?usp=sharing

The specifications of my head unit are:

YT9217B

android 8.1Go

1/16GB

chips:

-autochip ARM AC8227LT VA

-RS 192M32LD3

-Nand Biwin BWCTA SC21C61C

-Mediatek MT6323

Board:

YT9217 ver1.5

I hope you can help me and thank you very much in advance.
[Android Head-Units] Ipse_Tase:
It really could be a number of things...wrong image for your unit, faulty write process at some point...can you hook up a keyboard and/or mouse and see if you can navigate to Factory Settings to see if touch test passes?

I'll tell you what: based on my experience, no one will be able to assist troubleshooting (it's hard to do remotely and it's rare that people have this touchscreen problem) so I'd bite the bullet, now that you know you can flash and try different images...one will work.

I used the one posted by gouster3 here...again, this might or might not work for your unit. They are unfortunately not exactly identical, despite a similar design.

https://xdaforums.com/android-auto/android-head-units/everything-yt9216b-t4007063
[Android Head-Units] nitko666:
You can use Headunit Reloaded application for Android Auto emulation.
[Android Head-Units] ppeti84:
Hi.

I'm looking for a mcu backup.

mcu cvd1810-WJ_19.09.17_011 stm32f030c8t6

[IMG="car"]https://i.imgur.com/ayBJCZS.png[/IMG]
[Android Head-Units] Jormajee:
I have a generic 1 GB YT9216B device, and this is perhaps not quite the right thread, but... Any idea how to make navigation apps not to cut background audio? I have tried everything, including tinkering with the factory setup menu... But no matter what, navigation apps (all of them) always cut background music.

My firmware is YT9216b_00002_V004_20190728...

Otherwise the firmware is working pretty well, so I'd rather not update it unless absolutely necessary..
[Android Head-Units] Ipse_Tase:
The only 2 places where this is set (to my - limited - knowledge) are the Car Settings "Navigation" - try deselecting the app currently used, maybe point to another listed app and second place would be the "Volume" settings, where you can play with the "mix" slider. BTW this last one makes no difference on mine. Try it , maybe yours works.
[Android Head-Units] koontzy65:
Anyone saw a new usb update files ? I'd rather not remove the radio from my truck and update it by usb but I have an old version
[Android Head-Units] MaujuDroid:
Flashing other mtk stereo

Hi there, I wish someone in this thread can help me.

I bought an Android stereo from aliexpress some month ago, but am stuck at Android 4.4. The shop HOXIAO doesn't send me, any kind of upgrade am asking till now. I'd like to upgrade the stereo because is really buggy.

The stereo chip is from Mtk 6582V like the Gps and Bluetooth and wifi. ( 2Gb 32Gb )

Do you think I could try to flash one you posted to upgrade my stereo?

Sorry for my bad english. Thanks in advance, mauro. :)

P.s. I teardown the stereo to watch inside, but because of a newbie I can't attach the link, if you need I have some pics, wish could help.

Have a good evening.
[Android Head-Units] Ipse_Tase:
Not likely to find help in this 8227L thread...you might be out of luck and those units like yours are few and far between, with poor support.
[Android Head-Units] fani:
As the saying goes "don't fix what ain't broken", I no longer look for updates, as I finally got it working the way I wanted. with the rooted firmware in the 1st post.
[Android Head-Units] fani:
This is tricky, Only with the right combination of nav and music apps it is possible. In my case poweramp as audio player, and IgoNextgen (or Sygic) as navigation, work together without any issue. All other combinations of apps result in stopping the music while navigating.
[Android Head-Units] sheshman:
[MENTION=9936717]viktorsaari[/MENTION] is it possible the root original factory rom without flashing any other rom? if it is how? there was an instruction but i couldn't be able to find it.
[Android Head-Units] Ipse_Tase:
Amen brother...I've learned my lesson :laugh:

BTW did you manage ever to do a backup from TWRP? I posted in a few related threads that mine craps out after 1 min. It looks like the display timeout does not get deactivated or changed to 5min (as I tried).

Really reluctant to flash another recovery.
[Android Head-Units] koontzy65:
Nah, I just HATE the launcher and the default dumb picture ;)

I've tried fews others launcher but they all look finicky

I'm looking for a launcher that can control bluetooth music and display song time and artist without having to open the bluetooth menu everytime
[Android Head-Units] Smarty_009:
Have your tried Agama launcher?
[Android Head-Units] koontzy65:
Yeah, but more than half of the functions doesnt even work with my units
[Android Head-Units] Smarty_009:
Like what did not work?
[Android Head-Units] fani:
Agama is the one I use. I found it to be the best of all, for my needs. (True the circular volume sliders don't work, I just disabled it in settings)
[Android Head-Units] prezesik18:
i have 9" radio in passat b6: model number ac8227, android version 5.1.1

kernel 3.4.35

mcu IAP36/CM02.00.00.02_161223_15:24

BUILD NUMBER: IMT01H.V6.08.04-20170502-U184A.

I WOULD LIKE TO UPDATE THE SYSTEM. Is it possible and to what version?
[Android Head-Units] bogdangroasa:
Please help me with this Pach for Car Luncher to make default

You can find more detailes here : https://4pda.ru/forum/index.php?showtopic=672503&st=160#entry43935033 Post number 176

Almost each time the head unit start's first opens programs then launcher and on that site the issue is solved with installing this pach that is no longer hosted.

Tank you
[Android Head-Units] MBeyaz:
Hi,

I have similar device YT9212 can I update this firmware to my device?

https://ibb.co/34ymsCT

https://ibb.co/0s6h9xL

https://ibb.co/tPpvJ4x

https://ibb.co/4pBGj89

https://ibb.co/4pBGj89

https://ibb.co/LpVbktL

https://ibb.co/RgQXwq8

https://ibb.co/wz8CVp3
[Android Head-Units] kamileoo92:
I welcome. Do you have a file with the new software to this model?

https://ibb.co/cgL1vrT

https://ibb.co/dmBWM5w

https://ibb.co/LnRN36N
[Android Head-Units] Jewel of Yankee:
how do you twist the usb cables if you want to make one yourself?
[Android Head-Units] kamileoo92:
can't see any front/rear "fade", left/right balance or EQ of any sort (not even a 3 band high/mid/low). Is this a hardware limitation or am I missing a setting/app somewhere?
[Android Head-Units] grvdggr:
9213AJ or 9218

So the system info says I have a YT9213AJ but CPU Z says YT9218.

Which one is true?
[Android Head-Units] MrLuyKi:
Hi guys, its possible to install a custom rom in my headunit flashing by twrp only? I already have root and twrp, its a 1/16 yt9217, Im having some troubles with pairing my smartphone and the hu get slower than before with this rom, I want to change to the UI5 and change de boot animation logo, greetings.
[Android Head-Units] pietrek38:
What's the actual version?

Hello colleagues, I already have doubts about the actual head unit? He writes on the home screen:

YT9213A_00009_V001_20200523 ,DDR 2G, Flash 32G, A7 1,3GHzx4, MCU 3.1 (8227L)... CPU-Z gives : Bulid ID YT9218_0000_V001, kernel architecture armv7I.

I don't know if I can do root the way given in the first post? What files to use? Can someone write so that I do not damage the radio.:confused:
[Android Head-Units] Ipse_Tase:
[MENTION=6354485]MrLuyKi[/MENTION] You can, either you find a ROM broken down into individual images, or you bite the bullet, get someone's dump and using WWR you break it down yourself (haven't tried, looked like a daunting task and I also disliked/distrust the way you launch the software - but it seems to work).

In the end I used an image found here (posed by gouster3) which is broken down already. I only needed the image as this is what I managed to mess up.
[Android Head-Units] pietrek38:
What's the actual version?

Which image - file should I upload via USB to have root, twrp, hifi and rds radio? Please link.

Thank you
[Android Head-Units] amit_coolcampus:
How did you achieve the root. Can you help me.

Any video or reference link will be a great help.
[Android Head-Units] pietrek38:
What current software (root, twrp, hifi) for 2Gb ram / 32Gb room?

Will it work on 2Gb ram / 32Gb room? Can i upload it?
[Android Head-Units] MrLuyKi:
I flashed a rom with magisk using SPflashtools and the usb male to male method.

Can I download a ROM in a zip file and just flash it? actually Im not trusting in twrp because Ive tried to make a backup and the hu crashes, If it crash during the flash its over...
[Android Head-Units] amit_coolcampus:
In my case SP tool detects it but a blue sign is there as root shell is not there. So I am not sure how to make it work.
[Android Head-Units] babadaba:
What is the latest firmware i can install on my head unit?

What is the latest firmware i can install on my head unit?

The details as in the pictures below.

Thank you in advance.
[Android Head-Units] lolloxda:
A request:

I can't understand why you can't get the RADIO app with RDS and various functions without necessarily having to root the device ...

Would some pious soul be able to put a Radio app with RDS, station names etc ... to be installed without root?

Thanks in advance!
[Android Head-Units] Ipse_Tase:
That's what I would recommend anyway... Can't get TWRP to stay up long enough to even get a backup of the system...so I wouldn't risk flashing anything bigger than 100MB or so (another recovery, root, etc).

Find the post I referenced from gouster3...that's what I flashed through SPFT...any ROM can be flashed that way.

4pda.ru is full of them.
[Android Head-Units] Ipse_Tase:
No need to cross-post in all the threads.
[Android Head-Units] cafsta:
So I've had my unit for just over a year. Installed the updated files /MCU giving me the quick boot function. I then installed an animated boot logo and everything worked great.

Every now and then when starting my car, the unit would (short out) reboot, starting the unit. I do believe it was something to do with how power is supplied to the unit.

Anyway, long story short, last week I started my vehicle and the unit rebooted now having the animated logo come up. Whilst the animation was in progress I had to restart my car again unfortunately. After this my device would show the animated boot logo and when the animation process is done it is them stuck there. The device does not boot into the main screen.

I tried the reset button but it doesn't help. Now the unfortunate predicament I have now is that the USB cable with the 4 pin plug was damaged a while ago and I've not tried to source a replacement.

Now my understanding with the OP's first post is that if I want to use the TWRP option to recover my device then I need to use the USB with the 4 pin plug.

I have tried using the other USB plug, plugging it into my laptop with flashtool but the device is not picked up by my laptop.

So after this long story, is there a way for me to fix my brick or can it only be done with the USB with the 4 pin plug???

I've been without audio in my car for close on 3 weeks now and it's killing me.

Your guys help is appreciated.
[Android Head-Units] grvdggr:
It's easy to to cut your USB cable.

Cut another USB and connect them together.

The wires inside are standard, 4 wires and the colours of USB cables are the same.

You can google it.
[Android Head-Units] cafsta:
Thanx bud.

I didn't know this.

I'll have to get myself a female USB then.
[Android Head-Units] grvdggr:
A male works too if you just want to plug it into your computer.

You can always change later.

Good luck.
[Android Head-Units] cafsta:
Sometimes we don't see the answer staring us in the face...

Daaamn man. Thanx for that. I appreciate the lesson I received now.
[Android Head-Units] fani:
In my case only the firmware named "xyauto_ui2_9218C_full_8227L-20190522_HIFI.zip" worked.

The others named "YT9218C_00005_V004_20190522_HIFI - UI2" (containing the folder XYAUTOUPG inside the zip or rar) did never work.
[Android Head-Units] raphael.atienza:
If the USB drives worked for the firmware for USB drive flashing then it will most likely work for the ZIP Upgrade. A lot of my USB drives do not work for the XYAUTOUPG method of updating or the zip file.

A card reader with a 8GB MicroSD Card works for me and only at specific USB ports.

USB1 for the XYAUTOUPG Folder firmware

USB2 for the flashable zip file
[Android Head-Units] cafsta:
Okay so thank you so much [MENTION=9936717]viktorsaari[/MENTION].

I got the upgrade working after this explanation as I now knew what to try.

So I used the "xyauto" named zip file in USB port 2 and VOILA - It worked.

Now I'm just waiting to test the switch on time when I use my car later today.

This will determine whether I'm keeping this head unit or not.

Thank you again sir for your amazing help and insight. You are a star...
[Android Head-Units] fani:
I'm glad it helped. I started this thread asking help to fix my own unit. With help from so many people here and at other forums, I managed to fix mine, and helped others as well. Its always a team effort. :highfive:
[Android Head-Units] fani:
Next step: Im going to try some of these modifications. The ones with cooling, wifi antenna and microphone are much needed. :cowboy:
[Android Head-Units] cafsta:
Awesome...

I might look into doing the wifi and microphone mods as these irk the living daylights out of me with how bad it is.

I'll stay subbed here too see your mods completed.
[Android Head-Units] fani:
new firmware and MCU

comming soon:
[Android Head-Units] lemmon:
Cool.... what’s new ?
[Android Head-Units] fani:
MCU 3.1

Here is the link to MCU3.1

I have updated. There is no apparent difference between 2.8 and 3.1

(Source)
[Android Head-Units] lemmon:
I cannot try it till next week !!! ?
[Android Head-Units] ramnkc:
I am actually more interested in the firmware or launcher.. not sure its able to flash it over to UI2 formware.
[Android Head-Units] fani:
Firmware 20190601

Firmware 20190601 (link)

It didn't work on my unit :eek:

(source)