ROM / Firmware/ Brick Recovery for 7" Android Head Unit AC8227l YT9217 YT9218 1/16GB

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Belamia

Member
Oct 21, 2017
25
0
The only way I could find one that worked on my device, was to download a bunch of different firmwares, extract the scatter, and use it to flash firmware. when you find the one that lets you flash without giving error (even if the firmware is not correct) stick with that scatter. and use the same to load other firmeares you want to try.
Thanks but I did something wrong because the computer doesn't recognize it. There is a solution?
 

motinka

Member
Jan 23, 2021
25
1
Van ilyen fejegységem, telepítés után jól működött.
Az autó feszültségmentes lett, és most újraindul, és jelszót kér. Nem adtam neki sehol jelszót. Körülbelül 30 fajtát próbáltam ki, de semmi sem oldja meg. Valahogy vissza tudom állítani a fejegységet a gyári alapértékekre?
Vagy mit tehetek?
videó erről:
 

salaciarz

New member
Jan 25, 2021
1
1
Hey,
the tutor is good and firmware works fine but the main point which is missing here is :

turn your radio off (unplug from power supply) , wait for the capacitance to discharge and then and only then connect the USB to the computer
And additionally:
after finishing download , unplug the USB from the computer and then and only then connect back the power supply to the radio

those two steps probably resolve like 90% of ppl's problems here (like empty screens,not recognizable mtks and so on...)

This information would help a lot many of us so it would be nice to add it to the top post

Thanks :)
 
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motinka

Member
Jan 23, 2021
25
1
[QUOTE = "motinka, post: 84347271, tag: 11410269"]
Van ilyen fejegységem, telepítés után jól működött.
Az autó feszültségmentes lett, és most újraindul, és jelszót kér. Nem adtam neki sehol jelszót. Körül belül 30 fajtát próbáltam ki, de semmi sem oldja meg. Valahogy vissza tudom állítani a fejegységet a gyári alapértékekre?
Vagy mit tehetek?
videó erről:
[MÉDIA = youtube] yfgST-mD5sc [/ MÉDIA]
[/IDÉZET]


Sziasztok
kell-e firmware-em a készülékemhez, akkor az újraindul. az eszköznek rendelkeznie kell A005-9216B-00019 20200830 jelzéssel

előre is köszönöm a segítséget
 

Allan_Hun

Senior Member
Mar 11, 2014
404
114
Gl.Rye
[QUOTE = "motinka, post: 84347271, tag: 11410269"]
Van ilyen fejegységem, telepítés után jól működött.
Az autó feszültségmentes lett, és most újraindul, és jelszót kér. Nem adtam neki sehol jelszót. Körül belül 30 fajtát próbáltam ki, de semmi sem oldja meg. Valahogy vissza tudom állítani a fejegységet a gyári alapértékekre?
Vagy mit tehetek?
videó erről:
[MÉDIA = youtube] yfgST-mD5sc [/ MÉDIA]
[/IDÉZET]


Sziasztok
kell-e firmware-em a készülékemhez, akkor az újraindul. az eszköznek rendelkeznie kell A005-9216B-00019 20200830 jelzéssel

előre is köszönöm a segítséget
Ja det er sikkert rigtigt nok. Men hvis vi alle sammen anvender vores lokale sprog -så er der ikke mange som forstår det!
 

motinka

Member
Jan 23, 2021
25
1
Ja det er sikkert rigtigt nok. Men hvis vi alle sammen anvender vores lokale sprog -så er der ikke mange som forstår det!


Hello,

sorry google translate and didn't do it: o)
do I need firmware for my device then it will reboot. the device must have the designation A005-9216B-00019 20200830

thanks in advance for the help
 

xdamajk

Member
Feb 23, 2018
8
2
Hi , i try to download with your link but Google drive says its a virus please contact the owner ,so i cant download . U have a other link please ? thanks

Cant downlload Google Drive replay

"Sorry, this file is infected with a virus

Only the owner is allowed to download infected files."
 

koontzy65

Senior Member
Dec 5, 2011
108
8
Québec
Anyone have a recent USB files to update the radio ? Mine is almost 2 years old... perfect files would be with root, I dont want to take out my radio (it's kind of a spider nest there lol)
 

xdamajk

Member
Feb 23, 2018
8
2
hello all

I resolved back camera not showing when adndroid booted :)
Change some setting in Advanced user menu (entered via password: 8888)
There you can flip the image left-righ and up-down and lot more
The catch was in menu of display setting some switch abouz display color (noramlly is off)
but in my case was on ! (also saing if "ON"can make device akt strange still in testing)
So after switched OFF the camer video feed returned noramlly showed when android booted and aslo when booting like before.

By
 
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ch4vezz

New member
Jan 10, 2014
1
0
Hi everyone, I would like information about my 2din android car stereo if anyone can help me, I can't understand the stereo model or where to find a possible update .. since it was purchased it is still at version 7.1 and I would like to try to see if it can change something in terms of fluidity or in terms of graphics .. I try to put a photo if someone knows how to help me. Thanks in advance

 

quixcraiova

Member
Feb 12, 2021
31
2
Hey there, i've installed the rom and my touch keys didnt work . I saw hot to fix them and all was ok untill i changed the rom with another rom . After this i bricked the device and was necessary to open it and to make concact between two dots on mainboard. I flashed with another rom and device started . After flashing headunit turns on and when desktop appears after starting my display touch dont work anymore . I wanted to flash again but i cant restart the unit . If i press headunit restart button this not restarts the unit for flash . Flashing now only works with usb cable and with connected wire on two dots on mainboard . Can somebody help me solving this ? Thanks !
 
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lagakappa96

Member
Jun 12, 2013
15
2
Poland
Hi, maybe some of you can help me in any way - I have YT9216B 2G/32G
During flashing, I got DL_RAM Error, Iwhich was due to faulty cable.
I got another cable, it works, I can flash the device just fine. However, none of the firmware I tried works. I don't have a backup. I tried multiple firmwares - unofficial from this forum and official from xyauto file server.
Most of the time, it goes straight to black screen(no backlight) after flashing and turning on.
Couple of firmwares show Android (or DSP) splash, and after 2-4sec it blinks once and stays black (with backlight).
I tried to get the firmware from seller, he constantly sended me the same firmware, which did even load in sp flash tool (invalid scatter)
Any ideas what can I do?
 
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quixcraiova

Member
Feb 12, 2021
31
2
@lagakappa96 i have the same unit yt9216b 2/32 and at this moment im looking for the same. Unfortunately im now with firmware for 9250 and my touch screen and sensor keys dont work. Only with plugged mouse i can use the device. Tomorrow i will try with one of these and with the original preloader file from site : http://file.xygala.com/?dir=uploads/XY公版/9216/9216B/Android9.1/中文/横屏/1024x600/UI1_v6.5

To log there you can use username xyauto and password 123456

Im attaching screenshots with what i gave atm.
 

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amit_coolcampus

Senior Member
  • Mar 30, 2013
    255
    27
    Delhi
    Samsung Galaxy Note 9
    for me only start the firmware upload of the SP when these two points close and then connect the USB cableView attachment 5225175

    I also am facing this issue. But I sent it back to the seller and he is able to use it in his car as well as on Artificial table setup. I have no idea what's wrong in my car that I see a black screen. It turned on initially and I was able to use it for an hour. But after that It went into black screen and never came back.

    So I sent it back to seller and he is using it for a couple of days now. He sends me videos using it and says its working fine there.
     

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      ROM / Firmware/ Brick Recovery for 7" Android Head Unit AC8227l YT9217 YT9218 1/16GB

      Thanks everyone who contributed in my effort to fix my bricked device. Here is all that I have found useful in successfully reviving my device.
      The files shared here are the ones that worked on my unit (see specs and pictures below) If your device is different, it may or may not work.
      If the device has dedicated radio chip inside, the Firmware number will show as YT9218, if no radio chip, then it will show as YT9217
      Note: if your device is not bricked, Make a full backup before trying another firmware.

      I hope it helps. (donations are always welcome ):highfive:

      Memory dump:
      firmware 20181222 HiFi: (Link) (thanks mazepa2000) (May 2019 update below)
      Rooted TWRP firmware 20190523 HiFi: (Link)

      Preloader (Boot_1) from other Similar Firmwares: (Link)
      Download the one similar to your device's version.

      Firmware via flash tool: Rooted TWRP 20190523 (Link) Thanks Maxkir
      (You may need to remap side touch buttons in Factory settings (code 8888) -> Touch settings -> Click start -> Name of the button -> The button itself ->Repeat for all the buttons -> close -> ok).

      Firmware for YT9213 Device: (Link) (Thanks pajurpl)

      Update / Upgrade Files USB flash drive:
      Firmware 20190522 HiFi: (Link) (Thanks foxgiggle , iSevenAuto)
      Firmware 20190906: (Link)

      MCU 3.1 (Link)(Thanks foxgiggle )
      MCU 2.8 (Link) (Thanks lemmon and foxgiggle)

      Memory Dump Procedure via flashtool:
      (Memory dump is only needed if you need full recovery from a backup. Otherwise you may only need to do the next part.)
      Download and install MTK drivers. (Link)
      Load scatter file and preloader (Link) in spflashtool. Press Ctrl Alt V , then go to Window and select "write memory". In file path select "user", in begin address put 0x0, In Region select the partition named "EMMC_USER". Hit Write memory. After that plug in the usb cable (connected to usb1 port). If the device is not detected, you need to power it on. If still not detected then you might need to short the two test points (see picture) (without power this time) and then plug in the usb cable. Remove the short when write process starts. Check if the issue is fixed. If its not fixed, then do the same to write boot2 and boot1 partitions as well. You may need to download Boot_1 specific to your original firmware from the link above.

      Uploading Firmware (full or parts) via flashtool:
      If you are uploading the firmware available in parts, you only need to upload "BOOTIMG" and "ANDROID" (SYSTEM).
      You may also need to flash "RECOVERY". Remember to uncheck the preloader. Here is a nice instructions file. (Link) (thanks Maxkir)
      There is more info and firmwares to chose from at 4pda forum.

      Update / Upgrade Procedure via USB flash drive:
      Copy the zip file (do not extract) to usb drive or microSD card, (formatted by SD Card Formatter). Connect to usb port 1 or 2. Go to Car Settings, System info. Click Android Upgrade.
      --OR--
      Extract the zip into a folder named XYAUTOUPG into the flash drive or microSD card, connect to usb port 1 or 2 and then reboot. Upgrade should start automatically. You might need to try with different USB drives or sd cards. For some reason this only works with certain usb and cards.

      MCU Upgrade Procedure via USB flash drive:
      Extract the mcu file into flash drive or microSD card. Connect to usb port 1 or 2. Go into system info and update mcu.

      Make a Full Backup/Memory Dump:
      Open SPFlashtool, Select Memory Test Tab, Select only RAM Test (uncheck the rest), push start, and connect the unit. Save the information appeared, in a text file for later. (Read above "Memory dump procedure" for the usb connection setup).
      Now go to ReadBack Tab, Double click on empty space next to tick mark, Select a folder where you want to store the dump file, and Type a name for the dump file you are going to creat, (ie. Boot_1, Boot_2, USER). Click Save. In next window "Readback block start address", select the region you want to make backup of (ie. EMMC_BOOT_1, EMMC_BOOT_2, EMMC_USER).
      Start address is 0x0000000000000000
      Length copy and paste from the text file you created earlier.
      typically for Boot_1 and 2 the length is 0x0000000000400000
      and for USER (16GB models) the length is 0x00000003a8000000
      Click OK.
      Now click on Readback and then connect the unit via usb cable. and Read process will start.
      Do the same to make backup of all three partions. USER will take long time because its the largest partition.

      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 ?).

      Channel name Editor: (Link) (thanks mclaught)
      install as normal. You may need to install GalaPublicResources. Click top right dots.


      Multi Window Mode:
      Go to root folder, look for build.prop. Open in text editor. Change the line ro.build.type=user to ro.build.type=userdebug.
      If no such line is there, then simply add the line at the end. Save and exit. Go to Android settings, Developer options, look for multi window mode and enable it. Swipe down from the top of the window, Click on recent apps tile. You'll see the new multi window option there.

      Subwoofer output Pin:
      The default AUX_out pins are for mid range audio and is controlled by Mid slider in the mixer. The subwoofer output is on another pin (See Picture).
      it is easy to remove one of the AUX_out pin and install it at the Sub output. this pin is controlled by Subw slider in the audio mixer.


      Launchers UI1, UI2, UI4 (Link), UI5 (Link) (Thanks Maxkir)

      Boot animation: (Resolution is 1024x600)
      eg. (Link)
      The animation preview didn't work for me, but I installed it anyway and it worked fine.

      OBD Dongle Bluetooth Setting:
      Open Bluetooth app, Click on settings, tap on the pin code "0000" and type in "1234" instead. Save settings.
      Now search and connect the OBD dongle normally.

      I hope it helps. (donations are always welcome ):highfive:

      Unit Specs:
      motherboard marking YT9217 VER1.5 XY AUTO also 9218 VER2.4 XY AUTO near the antenna
      Model no 8227L_demo android 8.1
      Android YT9217C_00005_V003_20191402_HIFI
      Kernel 3.18.22
      DDR 1GB FLASH 16GB
      CPU A7 1.3GHzx4
      Amplifier AC7315 mos bile duct 45Wx4
      AutoChip ARM AC8227L
      Mediatek MT6323LGA
      Kingston EMMC 16G
      4
      the link takes me to the main page. and then its like finding needle in a haystack.

      All relevant info about ROMs and flashing you can find in top header of this russian forum.
      Look at the spoilers in the gray header layer and use Google translate to understand what is written there.

      There are 3 ROM versions for the 8227L based head units. I downloaded and installed the oldest of the 3 (rooted and TWRP IMG included). Copy all files from the RAR to a flashdrive in root folder.
      Turn off the head unit.
      Connect the flashdrive to USB 1 slot of the head unit.
      Turn on the the head unit.
      The install process starts immediately after turning on.
      It takes about 10 minutes.
      When install process is ready, turn off the head unit.
      Detach the flashdrive.
      Turn on the head unit and it will boot with factory settings like a new device....

      Note that there are also ROMs for flashing wit MTC flash tool downloadable.
      But the versions for installing from USB sticks ( po russki - dla flashky) are more comfortable to install and I don't own a Windows pc. So this variant was my favorite method...

      Regards and good luck...

      Edit: if your unRAR program asks for a password for unpacking the RAR file, then use Eazy unRAR app from Playstore on your Android device - it ignores password lock in RAR file ;) ...

      Edit2: the 5th gray spoiler in the top header of the Russian forum hosts the links to the ROM RAR files...
      4
      new firmware and MCU

      comming soon:
      16808269.png
      3
      Lots of info on those headunits (russian, use google translate):
      http://4pda.ru/forum/index.php?showtopic=936535

      pinout:
      3
      Very nice indeed.
      Im using Agama launcher at the moment, far better than others in my opinion.
      a bit off topic...

      Updated to MCU 2.8 - automatic acc off time delay works > 24hours...
      I modded the UI2 Launcher a little bit for my personal needs.
      See attached screenshot.
      (my car, VW golf plus 2013, is now shown in Homescreen...)