yashsingh1/xdaforums huggingface dataset:
[Android Head-Units] fani:
Trying to control heat, by attaching an old gpu heat sink with a small screw and some thermal paste, behind the amplifier chip. The pink ones are some stick on heat sinks I found in the junk box.
[Android Head-Units] yusriyusoff97:
Boot Logo

Can anyone help me what is the right format and resolution to make a custom boot logo as i tried before it is unsuccessful.
[Android Head-Units] koontzy65:
Anyone know if the informations here apply to this head unit?
[Android Head-Units] fani:
it looks quite similar, 20190624 update might work on this. its for yt9217B version.
[Android Head-Units] lemmon:
Great work ... have you noticed any temperature reduction comparing to the unit without the heat sink?

Thanks
[Android Head-Units] fani:
All I know is heat sink is also warm to touch. that means its working. No adverse effects of temperature so far noticed.

There is an air outlet right behind the head unit which was meant to cool the original head unit. that must also help.

Plus it helps that I live in cold climate to begin with, (Finland).
[Android Head-Units] raphael.atienza:
Hi [MENTION=9936717]viktorsaari[/MENTION] Would you know the difference between the firmware with HIFI in the filename? Is it just the equalizer?
[Android Head-Units] Dragon_159:
n You can install software without using sptool and a computer, check out the topic I opened.
[Android Head-Units] Emilson:
XY-AUTO-INSTALL-ROM-WITHOUT-PC

Dragon_159 Great news Bro 👍
[Android Head-Units] ericgonzalez:
If I connect the 4-pin usb, but how do I connect the 12 V power supply if the radio is outside the car?
[Android Head-Units] Emilson:
Omg... o_O such a misunderstanding...

Sorry but you have to plug 12v to make it work, thats the whole problem of 'not detecting the device'.

I thought you read about it from a conversation in the thread.

Im using an 12v ac adaptor from my old internet router. You can try to use some car battery charger/rectifier/jump starter however its called, anything that gives you 12v.
[Android Head-Units] ericgonzalez:
Can you send me an image to see what the adapter I should use is like?
[Android Head-Units] ericgonzalez:
And what part of the radio does that adapter connect to?
[Android Head-Units] Emilson:
I give up
[Android Head-Units] Emilson:
actually this ac adaptor is only 9v, not even 12v and the radio still works, plays music etc.

Bet that you didnt have to use 'testpoints' you just had to connect power supply..
[Android Head-Units] ericgonzalez:
I understand then the cables that are behind the black plug are connected to the radio
[Android Head-Units] Emilson:
Yep, ofcourse to the same colors behind plug as in front of plug.
[Android Head-Units] Dragon_159:
Absolutely bro, every time it is very difficult to bring the unit home or carry the laptop in the car, this way we can easily load it with USB stick, I will take new and detailed photos soon
[Android Head-Units] Emilson:
Sound solution i found for now, is flashing just a bit older release 9216BJ_9216CJ_"8239"_XYAUTO_7.3.7

Volume increase much faster.

This Firmware probably is just adapted for some '8239' sound chip ? Not sure.

I don't want to disassemble the radio again to confirm it. if it works it works.
[Android Head-Units] Dragon_159:
I think the sound is much better quality, I understand this very well since I use an amp and subwoofer, the volume has increased to 63 degrees compared to the past and the sound ranges have increased.
[Android Head-Units] ericgonzalez:
Friend makes the pc recognize my device but by mistake I checked the preloader box now the radio does not respond 😢 will there be a solution?
[Android Head-Units] Emilson:
So now you have to try method with the testpoints.

That should works even if you erased the preloader.

i actually tried the 'testpoint method' couple of times and i know that sometimes is pretty hard to connect these pins together to make a solid connection.

You need to use a good conductor, maybe a copper wire.

Then try to flash preloader dumped from F9212 model i found on russian forum.
[Android Head-Units] ericgonzalez:
Do you have an image of how I should do the testpoints?
[Android Head-Units] Emilson:
Here:
[Android Head-Units] dodo6:
I have done it several times and the device NEVER NEEDS to be powered. mediatek drivers must be installed. use only 4 USB pins and a male-male cable to the PC. disconnect everything else. 1. in the case of recovery through test points, it is necessary to enter the format mode (auto-format flash) through the spflash tool.

2. give start. after

3. connect the test points, for example with tweezers.

4. connect the USB to the PC.

5. after detecting the device, disconnect the test points.

6. After auto-format flash OK, disconnect the USB cable.

7. in the Spflash tool install a new system via all format+download. (must be a preloader because it was auto-format) tried many times
[Android Head-Units] meidland:
Hi, do you find the ted points? Thanks
[Android Head-Units] meidland:
Hello, have you got to do with test points? I have the same problem, and mine is 8229 different from 8227 and yes, we need suply 12V to headunit
[Android Head-Units] antonkwok:
no, not find tespoin
[Android Head-Units] Emilson:
I searched on the web for 'testpoints' on JAC8229 motherboard and found one.

I marked on the picture the pin that most probably you could use as the testpoint.
[Android Head-Units] lafah:
Hello, I have an Android screen for the car, it works for a moment, then restarts. Do you have a software program for it? Thank you.
[Android Head-Units] thebosspro10:
Firmware recovery for jac8229 help...
[Android Head-Units] Emilson:
Whats the model name on the green sticker on white conector.? Cant see it in the picture
[Android Head-Units] antonkwok:
do you have firmware how flashthis motherboard
[Android Head-Units] lafah:
MOD Translation:

No, I don't have a program, please help

لا ، ليس لدي برنامج ، الرجاء المساعدة
[Android Head-Units] Emilson:
...I said green sticker on the white connector

View attachment 5781033
[Android Head-Units] lafah:
https://xdaforums.com/attachments/_-jpg.5781435/
[Android Head-Units] Emilson:
I checked, the xyauto server doesnt have firmware files typically for 9217, try to test the firmwares for 9218 instead. YT9218
[Android Head-Units] Emilson:
I see you haven't read the any previous posts. The login is xyauto pass 123456.

what to choose and how to install you have described in the previous posts in this thread
[Android Head-Units] Emilson:
Do you have screenshot of your original system info? If you had android 8.1 you should use only 8.1 firmware, if you had 9.1/10 you should use 9.1/10 firmware. To downgrade or upgrade you need suitable preloader for it. Wich you have different motherboard than mine so i dont know wich one is appropriate for you (flashing with wrong preloader you'll need to use testpoints to revive your motherboard)
[Android Head-Units] lafah:
مرحبا، لديHello I have been logged into the site I will try today to try thank you🌹🌹
[Android Head-Units] speedking1977:
Good afternoon!

I bought a volvo xc90 stereo DAWEW-8719T 7.1 T3 2G+32G, the firmware is damaged.

Does not work properly.

Processor type QuadCore-T3

Android Version: 7.1.1

MCU 5.3 19-23-833-E43101-171107

System V8.3.2-20181215.170525_PH23-1280-Idrive-N6502

I can't choose an auto type, there is no can bus steering wheel. No FM radio.

Can they provide new update or volvo xc90 frimeware?

Thank you from Hungary

Hungary
[Android Head-Units] Emilson:
Wrong thread, this ones about mediatek 8227 cpu units, rather search for units with ALLWINER T3 cpu.
[Android Head-Units] speedking1977:
ok thank you
[Android Head-Units] thebosspro10:
Help software dor this
[Android Head-Units] lafah:
ok thank you
[Android Head-Units] Claudio GI:
MOD Translation:

Hi, I have a serious problem. I downloaded an update for my car stereo from the xy auto site. The file is "xyauto_ui2_en_9218-ota-20200610". Now it keeps restarting... videos attached. I don't know what to do. I'll try disconnecting the car battery for a while. Thanks to whoever can help me.

Salve, ho un problema serio. Ho scaricato un aggiornamento per l'autoradio dal sito di xy auto. Il file è "xyauto_ui2_en_9218-ota-20200610". Ora continua a riavviarsi... in allegato i video. Non so che cosa fare. Proverò a staccare la batteria dell'auto per un po'. Grazie a chi potrà aiutarmi.
[Android Head-Units] Emilson:
Did you get this file from the folder with firmware 8.1 or 9.1/10?

I think only the same version (in this case 8.1) can be uploaded via 'android upgrade'.

You can try upload 8.1 firmware with this method

XY-AUTO-INSTALL-ROM-WITHOUT-PC

By @Dragon_159.

For upgrade to higher android version like 9.1/10 you need to flash a newer preloader, but you'll need a usb cable and a laptop/pc to use SpFlashTool app to upgrade.
[Android Head-Units] Claudio GI:
Ovviamente 8.1. ci sono 3 cartelle. Credo sia la cartella ui2.

È partito l'aggiornamento...penso che se era sbagliato non sarebbe iniziato. Come ci fosse stato un blocco di aggiornamento. E poi non si è riavviato più nemmeno con la normale versione

Mod translation:

Obviously 8.1. there are 3 folders. I believe it is the ui2 folder.

The update has started...I think if it was wrong it wouldn't have started. Like there was an update block. And then it didn't restart again even with the normal version
[Android Head-Units] Emilson:
I already know that 'android upgrade' is picky sometimes. It didnt want to upload an upgrade, when the same upgrade was successfully uploaded via spflashtool.

So if uploading another release doesn't help you, try spflashtool.

Heres post with dowload links like SpFlashTool and i shortly described how to flash it post-1882
[Android Head-Units] Claudio GI:
Come faccio a verificare se continua a resettarsi tutto il tempo?

Mod translation: How do I check if it keeps resetting all the time?
[Android Head-Units] Badger50:
@Claudio GI

Greetings. As a "last time" courtesy, the Moderators have translated your last 3 posts. I will politely ask you to please be respectful and observant of XDA Rule #4

for all of your future posts:

Spoiler content hidden.

Thank you for your cooperation, and have a pleasant day.

-Regards: Badger50
[Android Head-Units] Claudio GI:
I post them in English, probably having the automatic translator they are posted in Italian ... sorry
[Android Head-Units] caiejay:
Hi,

This is my android head unit info. It says android 11 but adding my google account revealed it was android 8. My main issue with it is that it sounds terrible plus it's abit slow. Does anyone have a solution for it?
[Android Head-Units] Emilson:
Memory RAM also may be fake, as i've read that 8227 cpu support only up to 2GB RAM Memory.

You can check your real hardware info with an android app like Device info HW or some other apps.

Xyauto manufactuer of HeadUnits like in this tread provide only android from 6(fake8.1) up to android8.1(fake 10).

So if you have (fake)android 11 you probbably have some other manufacturer. And that's probably JUNSUN

junsun-v1-twrp-root-discussion-and-more-ac8227l-android-8-1-2gb-32gb
[Android Head-Units] caiejay:
Damn these manufacturers are craftier than i thought. It's really annoying to see what lengths they go to just to fake specs.

Is it worth to root and or flash a different software to this screen or should I just leave it as is?

Edit: thinking about it now it makes sense that the ram is fake cuz whenever i launch more than 2 or 3 apps the head unit closes other apps.
[Android Head-Units] xxdaniel1980xx:
hallo , könnte mir bitte jemand helfen mit meinem yt7260b ?

Mod translation: hello, could someone please help me with my yt7260b?
[Android Head-Units] Emilson:
Just one post above yours, you have a more relevant link to thread for yt92xx motherboards
[Android Head-Units] xxdaniel1980xx:
sorry ich bin neu hier und kenne mich da garnicht aus , das radio startet ja aber quer (bildschirm ) canbus einstellung sind weg und wenn ich eine neue frimware raufspielen will vom usb (ota ) sagt er fehler neu versuchen

Mod translation: sorry I'm new here and don't know my way around at all, the radio starts up but diagonally (screen) canbus settings are gone and if I want to play a new frimware from the usb (ota) it says error try again
[Android Head-Units] Emilson:
@xxdaniel1980xx Where did you get last firmware from?

Is your resolution is 1024x768?

You can find firmware for yt9260b on https://file.xygala.com (login:xyauto pass:123456)

If you can't update (ota) you can try update thru pc by SpFlashtool,

there should be two different packages to choose.
[Android Head-Units] Emilson:
@air32 I'm guessing that's your 'testpoints' as I marked on your pic.

I haven't seen this type of model, mine looked a bit different so im not 100% sure.

Just remember that someone from here had similar board layout like yours, but he wiped his preloader without making a backup :poop:

So the moral of the story is you should back up your memory before doing anything, just in case.

heres link with general tutorial about making backup, etc. https://youtube.com/watch?v=1D2cKcgFr_o
[Android Head-Units] air32:
Yep, i now made a complete backup (was possible without testpoint method) of preloader and rom. Which Rom should i now flash? I dont have any reference in model or manufacturer, so pretty unsure.
[Android Head-Units] Emilson:
I just noticed... Isn't that the name of the xyauto model hidden under the marker? :p that could be a hint.

You can remove the marker with some alcohol etc.

View attachment 5811983

Anyway you can try almost every single firmware yt92xx on your board and android system should work everytime (system release have to be the same, from8.1 to 8.1 or from 10.1 to 10.1 etc. otherwise you have to upgrade/downgrade appropriate preloader), just sound/radio could not work if firmware isnt dedicated for your sound/radio chipset.

I have tried almost all of them from xyauto.

For mine yt9216 most compatible was yt9216 and yt9218 firmware, which yt9218 gives me h-fi sound option that I hadn't originally.
[Android Head-Units] air32:
You have good eyes, i didnt see it, checked again but sadly just rnd numbers. Then i think i will check the one from yt9216cj, newest version. What you said about system release is also not so clear on this HU cause in the screenshots i made it says Android 11, on Aida Android 10, so i think i go with the 10.1 release on xyauto, cause thats my Android Version ribjt now? The supermod Rom which is based on 8.1 is then not usable for me?

By the way: i just started to mess around with custom roms here cause Android Auto Wireless didnt work and overall performance is a mess on the rom for now.

Man really thanks for all your effort until now :)
[Android Head-Units] Emilson:
Mostly fake 8.0/8.1/8.1go its android 6.0 - kernel version 3.18.79

Fake 9.1/10.0/10.1/11 its android 8.1 - kernel version 4.14.116.

So if you flash wrong release you'll just catch a bootloop, probably because of kernel (which is inside preloader).

but its not a big dill, you just need to flash another firmware (or backup).

Your kernel version is 4.14.116, so you are good to go, even with supermod8.

Just an advice, aida64 still reads some fake informatios, Device Info hw app shows more accurate info. (Bet it will show android 8.1, dont need screenshots ;p)

Btw i think i used some yt92xx'CJ' too, because its hi-fi verion
[Android Head-Units] air32:
Hey emilson,

at first thanks again for the help.

Interesting informations i found yesterday while using WwR Tool:

ro.product.board=

ro.board.platform=ac8227l

ro.mediatek.platform=AC8227L

ro.mediatek.version.release=android-trunk-p0ro.product.model=YT9216CJ

ro.product.brand=alps

ro.product.name=full_8227L_demo

ro.product.device=8227L_demo

ro.build.description=YT9216CJ_00012_V009

So i think its definetly a YT9216CJ.

I have another question at you, i were able to flash the latest release from xyauto (9216CJ_hw_12ok-v7.3.7) but as i expected it runs not pretty well and is, in my opinion, full of bloatware. Is there a way to root the rom and get rid of that bloatware? Did you managed it or just use the rom as it is?

It seems to be the only way for me because i were not able to use supermod8, as i already posted in that thread i get a bootloop right after installing the rom on first boot.

Thx,

air32
[Android Head-Units] dodo6:
I think you can root through the Magisk app. I did this on the yt9218. I transferred the Boot.img file to the device, modified it via the Magisk app, then transferred the modified Boot.img file back to the PC and uploaded the modified Boot.img via SPFlashtool. After starting, check in Magisk root rights. I also use the Magisk app as a manager for root rights.

edit..

otherwise, if you need it, I flashed TWRP for recovery after rooting. And I only have 1GB of ram, so I removed all google services through TWRP via kill_gapps.zip, then installed the app L_Speed.apk to optimize processes and the system, and the response is significantly faster. I downloaded the app I use outside the play store. I have never used Google Personal account on the main unit for security reasons
[Android Head-Units] air32:
Thank you for your reply, i will check the root procedure.

Which TWRP you used? And im also interested in the two zips for optimizing system performance, you got any links for me?

EDIT: Rooting does not work, i did it like you described (Preserve AVB 2.0/dm-verity and Patch vbmeta in boot image were not picked in the options), after flashing the new boot.img magisk itselfs says installed 25.2 and an app like link2sd or mixplorer accesses root but when i try to delete an app or rename a system file it says no file deleted, no file renamed.

When open Magisk it says "Abnormal State A "su" binary not form Magisk has been detected. Please remove any competing root solution and/or reinstall Magisk"
[Android Head-Units] Emilson:
Same, I used supermod8 package to get twrp recovery and magisk root, just by flashing magisk.zip package thru Twrp recovery.

But after rooting the system took much longer to load, not sure why and i had couple other issues after.

Anyway, twrp recovery has built-in 'File manager' so you can explore and modify whole system files without root.

So im not using magisk root anymore, just deleted apps that i didnt need thru twrp 'file manager'.

Ps.

Lastest addon from xyauto, adds 21 themes to choose from.

upload via usb by 'android upgrade' thru car settings.

Ui_1024X600_1280X720_21sets
[Android Head-Units] Emilson:
i think is just a waste of time trying to get supermod8 working.

I didn't mention it earlier, but I believe that it's worth to flash your own backuped metazone.bin when flashing different firmware, because I think that metazone contains a lot of settings dedicated to a given motherboard like buttons, touch, screen etc.

If You are looking foor 'speed' i remember that ExtremeMod said that stock android 6.0 runs fastest.

But it requires downgrading preloader.

Of course old Os comes with outdated can data base, oldest apps etc.

Heres package of fake8.1 wich is android 6.0, with preloader included 8.1Go_1024X600

Personally, I prefer to use the latest releases.
[Android Head-Units] dodo6:
I don't know about that speed. Android8 is better for me. The first start after rooting was longer, subsequent starts are fast, I keep noticing that I don't have google services. I don't have any problems with android8, only one when it sometimes restarts while running,it did the same randomly on android6 . I don't know why it sometimes restarts, it does it randomly, but in any case, removing all google services from the system and installing L_Speed.apk are the cure for my small 1gb ram. I can see it when I start Sygic, for example. It's faster than on android 6, but I also had google services there, so maybe it's that.
[Android Head-Units] dodo6:
If you flashed twrp, try using twrp and delete what you don't need. As Emilson wrote..

I had the same error on magisk. I downloaded an older version called Magisk Manager, made root, and then updated magisk. If you have a root file browser, after opening magisk for the first time, it asks if you have granted root rights for the root browser, or download another app to manage root rights and remove magisk. e.g. SuperSU
[Android Head-Units] ardonhs:
Can anyone tell me the latest fw version to download to My radio?
[Android Head-Units] ardonhs:
Its possible to get the themes without flash?
[Android Head-Units] Emilson:
Do you mean without usb flash / pendrive ?

I tried place the package in radio storage but the system didnt detect the update.

but maybe i did something wrong.

Package placed on pendrive was decected and updated successfully.

Probably you can unpack package and try to push files thru adb, but upgrade thru usb is way easier.
[Android Head-Units] Kruno25:
Hi, can this be flashed on any HU with android? Mine is Junsun V1 2/32,Allwinner chip 8227L?
[Android Head-Units] Emilson:
I don't think so

I don't remember if junsun has usb upgrade option in the system like xyauto HU.

not sure if such an upgrade will even pass verification or just be rejected.

you can try to manually unpack and put the files into the system but it doesn't guarantee that it will work.
[Android Head-Units] Kruno25:
Thank You for answer. Junsun is rebranded T3 P3 model....
[Android Head-Units] Eljay227:
Hi guys, please i need some help. I have a 9212a, i used USB to upgrade the system, after upgrade the screen resolution was too big (screen was showing top left of whole page) i managed to click around and do another android update with another file, after rebooting the screen now is black (but backlit). My phone was connected previously, so when i start the car, music plays via bluetooth. meaning the unit works but no display.

I want to flash using spflash tool. my pc doesn't see the device at all. The cable works on my android tv to PC using male-male usb. So cable is fine.

Pc shows no sign of device. I connected USB to pc while unit powered from my car. nothing... I tried test points... still nothing on my PC. I tried Power from my car and test point together. still nothing. The test point i used was posted earlier in this topic.

Can anyone advise maybe there's a different test point? or something I'm missing?

Sorry for the long post, trying to just rule out things I've already tried. Any help will be massively appreciated. thanks
[Android Head-Units] Eljay227:
Hi bro, please how did you do this? my pc does not recognize my device.
[Android Head-Units] Emilson:
Are you using a 4-pin usb connector to flash firmware thru spflashtool?

As i remember motherboard has 4pin and 6pin usb connector. Flashing works only thru one of them.

I haven't done it for a long time so I don't remember exactly right now
[Android Head-Units] Eljay227:
Yes i'm using the 4 pin connector. i tried the other one also, same thing. PC is not detecting it at all
[Android Head-Units] Emilson:
Just to be sure, are you disconnecting the radio completely from the power before flash?

The Best is to cut off radio from power (disconnect usb as well) for a while. Then Press Start in spflashtool, then connect the usb first, then power.

Also, Did you install the drivers on pc?
[Android Head-Units] mohamed taher elbstani:
LAUNCHER XYAUTO-YT92xx

horizontal screen-multi-UI/adaptation 1024X600 and 1280X720--26 sets

USER NAME (XYAUTO)

Password (123456)
[Android Head-Units] Eljay227:
Yes I disconnected it from power, clicked start on spflash tool, plugged in usb. No reaction from PC.

I installed the drivers. I even used the advance recovery method to install unsigned drivers on windows 11.

The PC doesn't even see anything like unrecognized device.

I tried soldering those test points, shorting with tweezers, shorting with pin. Nothing works.

But i plugged it back, its playing music in car via Bluetooth. But still black screen with backlight.