Database Users

Klyde KD-1280 tesla Headunit

This is the motherboard and coreboard from Klyde KD-1280 Tesla headunit in case someone wants to know.
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"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
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Anyone has any information on how to root this unit, please let me know.

Does anyone know what are these connectors for?

Hello,
can you also take a photo without a heat sink?

The heat sink was glued down, so I did not want to take the risk to remove it.
Toto1365 said:
Hello,
can you also take a photo without a heat sink?
Click to expand...
Click to collapse

Took mine apart
Toto1365 said:
Hello,
can you also take a photo without a heat sink?
Click to expand...
Click to collapse
The heat sink lifted off easily. Its an RK3399 as suspected.
imgshare.io/image/img-20191224-130838.0lp04
The unit is not being detected when plugged in to a laptop with rk3399 drivers installed. No SDcard slot. No USB on the board.
I have a TWRP.img for rk3399, how would I go about flashing it?
The unit does accept a USB flash drive with a px6_update.zip file.
Anyone knows a way to convert .img to a .zip? Tried making one, fails on zip verification. Not sure how to sign the zip properly. Thanks!

Recovery info
Also I've been able to get into recovery using ADB Shellkit app from the play store.
imgshare.io/image/0lvZS
imgshare.io/image/0lWzj
Trying to flash TWRP for rk3399, so far no luck
Because there is no SDcard slot, cannot apply update from SD.
Cannot apply from ADB either as the unit is not being detected from all 3 usb ports for some reason.
Going to try a different laptop and cable now.

Thanks. Right now I'm trying to find out what those connectors are for on the coreboard. Wonder if they enable other features for the head unit.

Connectors
After some research and in comparison to other rk3399 boards I would guess they would be either camera, sdcard, or usb OTG - ribbon expansion board connections. The bigger (longer) one is possibly a video bus.
I will bluntly ask KLYDE if they can sell me the expansion boards. I've had some luck dealing with them in the past... I am very curious too, but in the end I am just interested in rooting it and possibly designing a custom ROM afterwards.

Dr0idFanatic said:
After some research and in comparison to other rk3399 boards I would guess they would be either camera, sdcard, or usb OTG - ribbon expansion board connections. The bigger (longer) one is possibly a video bus.
I will bluntly ask KLYDE if they can sell me the expansion boards. I've had some luck dealing with them in the past... I am very curious too, but in the end I am just interested in rooting it and possibly designing a custom ROM afterwards.
Click to expand...
Click to collapse
Yep I'm guessing the same thing. They have option to add HDMI out for less than $10, so I think one of those connection will enable that.
Also, I got the PX6.zip update from Klyde, and it worked. If you want it to take a look at how they sign the zip file, let me know. I will upload, so you can download it.

JohnnyMHo said:
Does anyone know what are these connectors for?
Click to expand...
Click to collapse
I can help: the connector on your right picture is used for the HDMI connection:
And if somebody needs an additional USB connection: there are -2- USB connections located on the mainboard. I noticed it while comparing your picture with mine. So I found that the USB connection (on your board) is different like on my board. After a small research I learned that the USB port has -4- connections to offer. So I soldered an old USB cable to that connector and now I have an "internal" ssd connected. I'm worried about the total power consumption when I use all 4 connections so I would like to ask: perhaps it's better to "install" a self powered (12V) USB port on that connection???
What do you think?

Confirmed working
I've soldered on the extra USB and connected to my phone, then ran Android Auto through that port. Works. Very good idea to use the port for an "internal SSD".
I also was hoping ADB would connect through it, but no go.
---------- Post added at 08:55 PM ---------- Previous post was at 08:13 PM ----------
Also had lots of time to mess around with the unit.
-ADB through USB is broken, not seeing device.
-Fastboot works but flashing is locked. "Fastboot OEM unlock" returns OKAY, but tried flashing twrp_rk3399.img file and says locked.
-Got the rockchip firmware update windows app to work, however the partition tables are different.
-Finally got root access via ADB over WIFI !!!
-Also backed up recovery partition using dd, then tried writing twrp_rk3399.img with dd only to get a boot loop on booting into recovery. Restored original recovery with dd without an issue. I am guessing either I'm doing something wrong, or more likely TWRP_rk3309_3.0.2 does not work for this unit, as it came from a tv box with the same chip...
-Now that I know I can backup all the partitions, I will try loading supersu.

Sounds promising...
That would be cool if you are able to get a working root on the device! Looking forward for any (positive) development...

Success rooting the thing
Syncronisator said:
That would be cool if you are able to get a working root on the device! Looking forward for any (positive) development...
Click to expand...
Click to collapse
-After a few more hours of mocking around I've rooted it. (Credit goes to someone else as I followed a guide for a different unit with some slight variation).
-I will write up a step by step guide when I have some spare time again.
-Shortly after I bootlooped it by updating the SU binary, I know how to fix it luckily. Root works though, just an annoying "update su binary" every time you open the superuser app.
One step forward, two steps back. Progress never the less.

Super SU...
is perhaps a door opener.
Unfortunately the last version is 2.82 and no more development.
Wouldn't it better to use Magisk Manager instead? ( I'm no programming guy so this is a simple qestion from a noob)
The two additional connectors I would say (after researching in specs and data sheets of other RK3399) are MIPI connectors/interfaces???

Syncronisator said:
is perhaps a door opener.
Unfortunately the last version is 2.82 and no more development.
Wouldn't it better to use Magisk Manager instead? ( I'm no programming guy so this is a simple qestion from a noob)
The two additional connectors I would say (after researching in specs and data sheets of other RK3399) are MIPI connectors/interfaces???
Click to expand...
Click to collapse
I've tried magisk. Does not work, gives "unknown boot partition" error while installing. What worked is supersu 2.82B. The rooting method I will post in the next few days. Just dont update the supersu binary after, it will bootloop. It will nag every time you open the the supersu app, but otherwise will work.
-----------------------------------------------------------------
So when I messed up and updated the super su binary it bootlooped on me. Then I had a problem updating it with px6_format.zip, the update process did not want to start. I was pretty desparate at that point and did some research on how to get my unit working again. Then I messed up further by erasing the loader entirely. At that point just had a blank screen.
So I figured out how to reflash the loader, and get the px6_format.zip loading again.
In the process of recovering my unit I figured out a few hardware things as well:
1. I've soldered two wires to key down points on the board, when held on boot takes you to the unit recovery.
2. I've removed the OTG resistor in hopes of getting ADB to work via a USB cable, but that did not change anything. ADB & Fastboot still does not work. No need to remove the resistor.
3. The original recovery that came with the unit is useless as nothing worked in it. However after installing the latest px6_format.zip it finally has a useful "Apply update from USB card" function

Started a new thread with rooting instructions:
https://forum.xda-developers.com/an...to-root-klyde-kd-1280-tesla-headunit-t4035039
Good luck, have fun and DO NOT update the SuperSU binarý afterwards.

Dr0idFanatic said:
Started a new thread with rooting instructions:
https://forum.xda-developers.com/an...to-root-klyde-kd-1280-tesla-headunit-t4035039
Good luck, have fun and DO NOT update the SuperSU binarý afterwards.
Click to expand...
Click to collapse
I will try my best but this have to wait 2 weeks when I will be at home... I will report instantly

That is exactly what I think. The problem is you have to get that expansion HDMI board. I cannot find it any where.
Trying to talk to Klyde support to see if I can buy it from them. Still waiting for them to reply.
Syncronisator said:
I can help: the connector on your right picture is used for the HDMI connection:
And if somebody needs an additional USB connection: there are -2- USB connections located on the mainboard. I noticed it while comparing your picture with mine. So I found that the USB connection (on your board) is different like on my board. After a small research I learned that the USB port has -4- connections to offer. So I soldered an old USB cable to that connector and now I have an "internal" ssd connected. I'm worried about the total power consumption when I use all 4 connections so I would like to ask: perhaps it's better to "install" a self powered (12V) USB port on that connection???
What do you think?
Click to expand...
Click to collapse

Hello. I appeal to the owners of the device. Help me figure out the standby mode in the radio. Found only a short dream in the settings. But there is no full-fledged standby mode. Maybe I didn’t just see. In the previous MTCE PX5 device, the sleep settings were 10min, 30min, 2 hours and Auto. If someone figured out write how to configure?
---------- Post added at 05:23 PM ---------- Previous post was at 05:07 PM ----------
If anyone needs it, here is an update for the system. Received recently from the seller.
https://drive.google.com/file/d/1gXU13McO7XdTEMxOncy5pyW-5-OI1bF0/view?usp=sharing
To update, copy the file to the USB flash drive, the default format is Fat32. Insert the flash drive into any of the USB inputs and reboot the device. The update will start automatically. After the update is completed, you will be prompted to remove the USB; After removing the USB flash drive, the update is completed.

There is no option for that with the current ROM for the device. Hope we can see some custom ROM soon for this device, since someone already found the way to root it.
sun.valeo said:
Hello. I appeal to the owners of the device. Help me figure out the standby mode in the radio. Found only a short dream in the settings. But there is no full-fledged standby mode. Maybe I didn’t just see. In the previous MTCE PX5 device, the sleep settings were 10min, 30min, 2 hours and Auto. If someone figured out write how to configure?
---------- Post added at 05:23 PM ---------- Previous post was at 05:07 PM ----------
If anyone needs it, here is an update for the system. Received recently from the seller.
https://drive.google.com/file/d/1gXU13McO7XdTEMxOncy5pyW-5-OI1bF0/view?usp=sharing
To update, copy the file to the USB flash drive, the default format is Fat32. Insert the flash drive into any of the USB inputs and reboot the device. The update will start automatically. After the update is completed, you will be prompted to remove the USB; After removing the USB flash drive, the update is completed.
Click to expand...
Click to collapse

[GUIDE] Android 6 SUPERMOD for YT9213AJ, YT9216B, YT9217B, YT9218CH - root, Viper4Android, TWRP, custom UI, brick recovery and more

Hi all,
If you want to greatly improve the way your head unit works, sounds and looks like - you've come to the right place!
Why install this?​With any of these packages you will greatly improve:
Stability
Speed
User Interface
Sound tweaking options
Customization options
We wanted to share these all-in-one software packages with you, that we put together using various sources as well as our own modifications for Chinese Android Head units with 1Gb RAM and 16Gb FLASH drive, no physical buttons, with screen resolution of 1024x600 px. (It will not work on Tesla-style units):
YT9213AJ (with Audio Chip types: TDA, CSC or SCS)
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
​
YT9216B & YT9217B (same package)​
YT9218CH​
Disclaimer
We do not create the software itself but rather use research and put together different mods and hacks into one package that includes very user-friendly step-by-step instructions on how to install it all. You will find the links to original posts in the instructions pdf's if credit is due. The software might include smaller changes made by me and has been fully tested in real units.
The Software Packages contain:​
YT9213AJ custom firmware
YT9216B/YT9217B custom firmware with split-screen option
YT9218CH custom firmware
ROOT (SuperSU)
TWRP Recovery
Viper4Android / Viper4A / ViperFX
Custom UI (Car Launcher)
Custom Boot Animation
!! TAKE A PICTURE OF YOUR SYSTEM INFO AND KERNEL VERSION BEFORE DOING ANYTHING TO YOUR HEAD UNIT !!​
!! ALWAYS BACKUP YOUR UNIT BEFORE MAKING ANY CHANGES TO IT !!​
DOWNLOAD #1
YT9213AJ (with audio chip) supermod package & drivers
DOWNLOAD #2
YT9216B & YT9217B supermod package and drivers
DOWNLOAD #3
YT9218CH supermod package and drivers
STEP-BY-STEP GUIDE (upgrading from working stock firmware):
DO NOT SKIP ANY STEPS, AND INSTALL EVERYTHING IN THE CORRECT ORDER. STEPS 5 AND 6 ARE MOST CRITICAL.
Proceed to download the software package for your unit and the drivers package in the same folder
It's highly recommended to do these upgrades with your unit connected on your desktop, rather than in the car. Video Guide
Install the Mediatek & ADB drivers on your Windows computer. Video Guide - use the same principle for ADB drivers.
Backup your current system by exporting a full memory dump. Video Guide
Import back your memory dump from step-5 to ensure it fully works. This is how.
Install the package. Separate instructions are included in every folder of the downloaded zip file. Follow them by the order.
IF THIS SOFTWARE PACKAGE HAS BRICKED YOUR HEAD UNIT AND YOU HAVE YOUR BACKUP AVAILABLE, follow the steps below:
DO NOT SKIP ANY STEPS, AND INSTALL EVERYTHING IN THE CORRECT ORDER.
It's highly recommended to do these upgrades with your unit connected on your desktop, rather than in the car. Video Guide
Install the Mediatek & ADB drivers on your Windows computer. Video Guide - use the same principle for ADB drivers - (download link is in the video description)
Watch this video on Test Point recovery
Import back your memory dump. This is how.
If successful - try to install the software package again or stay with your original one
IF THIS SOFTWARE PACKAGE HAS BRICKED YOUR HEAD UNIT AND YOU HAVE NO BACKUP AVAILABLE, follow the steps below:
Share the pictures of your System Info and Kernel in this thread and I'll try to help you
---------------------------------------
IF YOUR HEAD UNIT HAS PHYSICAL BUTTONS: this software has only been tested on head units with no physical buttons (like volume). Before making any changes, access the CAR SETTINGS -> FACTORY SETTINGS -> ENCODER SETTINGS on your head unit and take a screenshot of the current settings (see example below). After installing the package, go back to these settings and adjust them if needed. If that doesn't help and if you can't successfully re-calibrate the buttons after installing the firmware, restore your backup.
** IF YOU ARE UNABLE TO RESTORE YOUR UNIT, PLEASE CONSIDER DONATING IT TO US @ ExtremeMOD, SO WE CAN BUILD MORE MODS AND TUTORIALS​
---------------------------------------------------------
This post is being frequently updated and you'll find more guides and mods in our forum signature​---------------------------------------------------------
Thanks! And if this post is helpful to you please don't forget to "like" it.
[9213AJ][YT9213AJ][V4A][VIPER4ANDROID][ViperFX][ROOT][TWRP][8227L][YT9216B]

Hello, is it true Android 9.1 or fake based on 6.0 ?

It's 6.0 as most of these units and frankly that's the best version for the hardware otherwise it'll be really slow.

Hi,
Could you show us some screenshot / pictures how this Android look like?
How look the radio app?
Google maps run smoothly?

what exact brand and model is the hu? serial number would be helpful, also links to where to buy it

I have YT9213AJ car stereo 2 gb and 16 gb memory but it lost Google account and some app delete auto and Google account not support . When I formated / reset it again Google account working well but after update it also delet my google acoount and play store also delete what should I do now?

Sorry if this is off topic.
I have this same unit(purchased a week ago) and the music quality is very bad, very flat, system equalizer doesn't work, Volume 1 is too loud.
I have used viper before on phones connected to head units with great success. After viper is this unit now providing clear sound and bass? My setup is using factory amp.
I am still in my return window and wanted an opinion before rooting or sending it back.

Can you check if this image is latest, can you adapt your image based on this latest image, published on 2nd of November, it shows Android 9.1 and has kernel 4.4
gongban_YT9216BJ_ui1-hw-ota-v6.5.zip
http://file.xygala.com/?dir=uploads/XY公版/9216/9216BJ/Andriod_9.1/外文/横屏/1024X600/UI1_v6.5

How did you?
How did you install TWRP and Viper? my hu is 2/16..I tried to memory dump your rom but it say invalid lenght..
[
​QUOTE=iceblue1980;83842081]Hi all,
Wanted to share this MOD with you that I created for 8227L_demo Android Head unit, model: YT9213AJ with 1Gb RAM and 16Gb FLASH drive. You can use this to debrick your unit or to fully install the latest firmware (Aug2020) with fully working:
YT9213AJ_00011_V001_20200806
ROOT (SuperSU)
TWRP Recovery
Viper4Android / Viper4A / ViperFX
Scatter file (should work for any 8227L YT921xx device)
Full Memory Dump
Download link
How to use
Download the file and unzip it onto you PC hard drive
Make sure Mediatek drivers are correctly installed on your PC (you can view many guides here on XDA on how to properly install them)
Download FlashTool version 5.1824 (or you will get transfer errors with reading DRAM or Scatter file) - if this version doesn't work try other versions between v5.1736 and v5.1916
In Flash Tool, 'write to memory' both BOOT1 and ROM_USER file (search for instructions on XDA on ow to import memory dump) using the information from "Memory Map.txt" file (shows what memory values to type in when importing in the Flash Tool) and you will need USB-A cable for this. During this step make sure your head unit is completely disconnected from car battery or any other power source
When installation is complete (import can take roughly 20 min), restart the unit in TWRP Recovery mode (use the Shutdown app that came pre-installed with the mod) and in TWRP pick "Wipe Cache / Dalvik".
Done!
If you are doing brick recovery, you can follow the very same method with Test Point method also fully described here on XDA Forums.
Enjoy!
[9213AJ][YT9213AJ][V4A][VIPER4ANDROID][ViperFX][ROOT][TWRP][8227L][/QUOTE]

Can this work on 2Gb RAM / 32Gb ROM?
iceblue1980 said:
Hi all,
Wanted to share this MOD with you that I created for 8227L_demo Android Head unit, model: YT9213AJ with 1Gb RAM and 16Gb FLASH drive. You can use this to debrick your unit or to fully install the latest firmware (Aug2020) with fully working:
...
Click to expand...
Click to collapse
Hello!
I have a YT9213A (without last "J"), with 2Gb RAM and 32Gb ROM, and I wish to root it in order to change the radio app with a mod made by a 4pda member.
Can I root it without reflashing the entire firmware?
If not, will yours be compatible with my unit?
EDIT: PS: The download link is not working for me, please fix it.
Thanks in advance.

kamikazedc said:
Hello!
I have a YT9213A (without last "J"), with 2Gb RAM and 32Gb ROM, and I wish to root it in order to change the radio app with a mod made by a 4pda member.
Can I root it without reflashing the entire firmware?
If not, will yours be compatible with my unit?
EDIT: PS: The download link is not working for me, please fix it.
Thanks in advance.
Click to expand...
Click to collapse
Sorry I wouldn't recommend it.

kamikazedc said:
Hello!
I have a YT9213A (without last "J"), with 2Gb RAM and 32Gb ROM, and I wish to root it in order to change the radio app with a mod made by a 4pda member.
Can I root it without reflashing the entire firmware?
If not, will yours be compatible with my unit?
EDIT: PS: The download link is not working for me, please fix it.
Thanks in advance.
Click to expand...
Click to collapse
K4f said:
Hi,
Could you show us some screenshot / pictures how this Android look like?
How look the radio app?
Google maps run smoothly?
Click to expand...
Click to collapse
It's super fast. With this mod you can easily install custom radio app or use one included. Here is a video I made showcasing similar unit but with exactly the same software -

gorgutron said:
Sorry if this is off topic.
I have this same unit(purchased a week ago) and the music quality is very bad, very flat, system equalizer doesn't work, Volume 1 is too loud.
I have used viper before on phones connected to head units with great success. After viper is this unit now providing clear sound and bass? My setup is using factory amp.
I am still in my return window and wanted an opinion before rooting or sending it back.
Click to expand...
Click to collapse
Viper will improve the sound considerably however the main reason for poor sound quality in this unit is the built in amplifier chip which is YD7388 and is absolute crap. If you have basic soldering skills, replace it with TDA7850 and a 10000 UF 25V capacitor and together with Viper, your unit will sound like a very hi end head unit.

codecxbox said:
How did you install TWRP and Viper? my hu is 2/16..I tried to memory dump your rom but it say invalid lenght..
[
​QUOTE=iceblue1980;83842081]Hi all,
Wanted to share this MOD with you that I created for 8227L_demo Android Head unit, model: YT9213AJ with 1Gb RAM and 16Gb FLASH drive. You can use this to debrick your unit or to fully install the latest firmware (Aug2020) with fully working:
YT9213AJ_00011_V001_20200806
ROOT (SuperSU)
TWRP Recovery
Viper4Android / Viper4A / ViperFX
Scatter file (should work for any 8227L YT921xx device)
Full Memory Dump
Download link
How to use
Download the file and unzip it onto you PC hard drive
Make sure Mediatek drivers are correctly installed on your PC (you can view many guides here on XDA on how to properly install them)
Download FlashTool version 5.1824 (or you will get transfer errors with reading DRAM or Scatter file) - if this version doesn't work try other versions between v5.1736 and v5.1916
In Flash Tool, 'write to memory' both BOOT1 and ROM_USER file (search for instructions on XDA on ow to import memory dump) using the information from "Memory Map.txt" file (shows what memory values to type in when importing in the Flash Tool) and you will need USB-A cable for this. During this step make sure your head unit is completely disconnected from car battery or any other power source
When installation is complete (import can take roughly 20 min), restart the unit in TWRP Recovery mode (use the Shutdown app that came pre-installed with the mod) and in TWRP pick "Wipe Cache / Dalvik".
Done!
If you are doing brick recovery, you can follow the very same method with Test Point method also fully described here on XDA Forums.
Enjoy!
[9213AJ][YT9213AJ][V4A][VIPER4ANDROID][ViperFX][ROOT][TWRP][8227L]
Click to expand...
Click to collapse
[/QUOTE]
Will not work with your unit. Sorry

How did you?
I have a dump of my radio..I would like to insert twrp and viper..How did you insert that to your firmware?

codecxbox said:
I have a dump of my radio..I would like to insert twrp and viper..How did you insert that to your firmware?
Click to expand...
Click to collapse
You don't "insert" modifications per se or at least this isn't how I did it. I modified everything first and only then performed the memory dump.

Hello,
XYAuto just released a new build for 9213A!
Here is the download link:
http://file.xygala.com/?dl=11e9beab97f54d9ad64f8be5f2fd7c8a
Does anyone know whats the difference between 9213A and 9213AJ?
Here is the latest version for 9213AJ BTW:
http://file.xygala.com/?dl=01c3d91a126931efc3b6765179a8af08

kamikazedc said:
Hello,
XYAuto just released a new build for 9213A!
Here is the download link:
http://file.xygala.com/?dl=11e9beab97f54d9ad64f8be5f2fd7c8a
Does anyone know whats the difference between 9213A and 9213AJ?
Here is the latest version for 9213AJ BTW:
http://file.xygala.com/?dl=01c3d91a126931efc3b6765179a8af08
Click to expand...
Click to collapse
The download link is asking me to login.
How do I get to register?

amritpal2489 said:
The download link is asking me to login.
How do I get to register?
Click to expand...
Click to collapse
Here you get the login Data:
http://file.xygala.com
log: xyauto
pass: 123456

maniac2002 said:
Here you get the login Data:
http://file.xygala.com
log: xyauto
pass: 123456
Click to expand...
Click to collapse
Thanks a lot.. You are a saviour...
Can you also point me to a YT9216CJ latest FW as I am not able to go through the links

[GUIDE] Android 8 API27 SUPERMOD for YT9216BF YT9216CFJ YT9216BJ YT9216BFJ YT9216CJ - root, Viper4Android, TWRP, Custom UI, brick recovery and more

Hi all,
If you want to greatly improve the way your head unit works, sounds and looks like - you've come to the right place!
Why install this?
With this package you will greatly improve:
Stability
Speed
User Interface
Sound tweaking options
Customisation options
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
ON PHYSICAL BUTTONS: this software has only been tested on head units with no physical buttons (like volume) | Before making any changes, access the CAR SETTINGS -> FACTORY SETTINGS -> ENCODER SETTINGS on your head unit and take a screenshot of the current settings (see example below). After installing the package, go back to these settings and adjust them if needed. If that doesn't help and if you can't successfully re-calibrate the buttons after installing the firmware, restore your backup
Disclaimer
I do not create the software itself but rather use research and put together different mods and hacks into one package that includes very user-friendly step-by-step instructions on how to install it all. You will find the links to original posts in the instructions pdf's if credit is due. The software might include smaller changes made by me and has been fully tested in real units.
This firmware works on the following 1Gb RAM and 2 Gb RAM units with fake Android 8.1, 9.0, 9.1, 10 and Android 11 installed, with screen resolution of 1024x600 px. It will not work on Tesla-style units:
- YT9216BF | YT9216CFJ | YT9216BJ | YT9216BFJ | YT9216CJ
!! TAKE A PICTURE OF YOUR SYSTEM INFO AND KERNEL VERSION BEFORE DOING ANYTHING TO YOUR HEAD UNIT !!​
The zip file package contains:
Modified firmware - courtesy of Stranger21UFA @ 4PDA (link to the original post)
TWRP (separate folders for 1GB and 2GB RAM units)
Root via Magisk
Viper4Android
Car Launcher
Boot Animation
SEPARATE INSTRUCTIONS ARE INCLUDED IN EVERY FOLDER
​>>>> ALWAYS BACKUP YOUR UNIT BEFORE MAKING ANY CHANGES TO IT <<<<​​!! IMPORTANT !!​This is a fairly advanced installation process and will require you to follow the individual guides included in the software package - to the letter. Failing to do so, will (in "best" case) result in a slow and buggy head unit and in the worse case - brick it altogether.​
DOWNLOAD
YT9216BF * YT9216CFJ * YT9216BJ * YT9216BFJ * YT9216CJ - supermod software package & drivers
STEP-BY-STEP GUIDE (upgrading from working stock firmware):
DO NOT SKIP ANY STEPS, AND INSTALL EVERYTHING IN THE CORRECT ORDER. STEPS 5 AND 6 ARE MOST CRITICAL.
Proceed to download the software package for your unit and the drivers package in the same folder
It's highly recommended to do these upgrades with your unit connected on your desktop, rather than in the car. Video Guide
Install the Mediatek & ADB drivers on your Windows computer. Video Guide - use the same principle for ADB drivers.
Backup your current system by exporting a full memory dump. Video Guide
Import back your memory dump from step-5 to ensure it fully works. This is how.
Install the package. Separate instructions are included in every folder of the downloaded zip file. Follow them by the order.
IF THIS SOFTWARE PACKAGE HAS BRICKED YOUR HEAD UNIT AND YOU HAVE YOUR BACKUP AVAILABLE, follow the steps below:
DO NOT SKIP ANY STEPS, AND INSTALL EVERYTHING IN THE CORRECT ORDER.
It's highly recommended to do these upgrades with your unit connected on your desktop, rather than in the car. Video Guide
Install the Mediatek & ADB drivers on your Windows computer. Video Guide - use the same principle for ADB drivers - (download link is in the video description)
Watch this video on Test Point recovery
Import back your memory dump. This is how.
If successful - try to install the software package again or stay with your original one
IF THIS SOFTWARE PACKAGE HAS BRICKED YOUR HEAD UNIT AND YOU HAVE NO BACKUP AVAILABLE, follow the steps below:
Share the pictures of your System Info and Kernel in this thread and we'll try to help you
------------------------------------------
This post is being frequently updated and you'll find more guides and mods in our signature​------------------------------------------
** IF YOU ARE UNABLE TO RESTORE YOUR UNIT, PLEASE CONSIDER DONATING IT TO US @ ExtremeMOD, SO WE CAN BUILD MORE MODS AND TUTORIALS​
Thanks! And if this post is helpful to you please don't forget to "like" it.
Enjoy!​
[V4A][VIPER4ANDROID][ViperFX][ROOT][TWRP][8227L][YT9216BF] [YT9216CFJ] [YT9216BJ] [YT9216BFJ] [YT9216CJ]

I flashed this on my YT9216BJ and everything flashed 100%, but when I went to reboot I got nothing. It looks like the unit isn't turning on at all. There is a blue LED on the board that is lit up when I connect power. Any ideas as to what went wrong?

dustindavidson900 said:
I flashed this on my YT9216BJ and everything flashed 100%, but when I went to reboot I got nothing. It looks like the unit isn't turning on at all. There is a blue LED on the board that is lit up when I connect power. Any ideas as to what went wrong?
Click to expand...
Click to collapse
Sorry to hear that. Please try the following steps:
1. Completely disconnect your head unit from power, start Flash Tool as Administrator and execute the command: Format+ALL including deleting the bootloader
2. Run the steps from "Brick Recovery" starting with Step-6.
If the above doesn't work - revert back to your original firmware by restoring your backup. Share your System Info screen found in Car Settings as well as your build.prop file and we'll have a look.
Make sure the USB cable is properly attached. The firmware update should not take more than 20 min. If it does, it indicates a bad cable/connection.

My PC will not detect the head unit at all. I'll try the test point recovery tomorrow and report back.

dustindavidson900 said:
My PC will not detect the head unit at all. I'll try the test point recovery tomorrow and report back.
Click to expand...
Click to collapse
In that case, follow the full brick recovery guide in the OP but use your backup to restore it. Once completed, share the info mentioned in my previous reply.
PS try step 1 in my previous reply. Because the unit is only detected once you push "Download" in Flashtool and then connect the USB cable to your computer. Before that nothing will be shown in your Device Manager. If nothing happens in Flashtool then do test point method.

dustindavidson900 said:
My PC will not detect the head unit at all. I'll try the test point recovery tomorrow and report back.
Click to expand...
Click to collapse
you need test point method now to make that alive again , after shorting them for some 2,3 times,run flash tool ,select scatter and press download, then connect headhunt with a usb a cable...

Why would I need to short them for 3 minutes? Isn't shorting them while I connect the usb enough. That's what the test point instructions say.
Edit: I was able to recover using the Android 6 version of the mod. Could not get the Android 8 mod to work. Thank you for the guide

dustindavidson900 said:
Why would I need to short them for 3 minutes? Isn't shorting them while I connect the usb enough. That's what the test point instructions say.
Edit: I was able to recover using the Android 6 version of the mod. Could not get the Android 8 mod to work. Thank you for the guide
Click to expand...
Click to collapse
Glad to hear it! Android 6 is the recommended option, hands down. I made Android 8 for those that can't successfully rollback to 6.
The unit you see in the pictures in the Android 6 post is a project of mine where rollback caused physical buttons to no longer work and I couldn't remap them either. So had to put together Android 8 package.

vijay_joon said:
you need test point method now to make that alive again , after shorting them for some 2,3 minutes,run flash tool ,select scatter and press download, then connect headhunt with a usb a cable...
Click to expand...
Click to collapse
Please avoid flooding this thread with bad or misleading instructions. Thank you

Hi, can I update my yt9216bj without disconnect it from my car?

matteo2 said:
Hi, can I update my yt9216bj without disconnect it from my car?
Click to expand...
Click to collapse
You absolutely can. However you need to disconnect it from car battery.

dustindavidson900 said:
Why would I need to short them for 3 minutes? Isn't shorting them while I connect the usb enough. That's what the test point instructions say.
Edit: I was able to recover using the Android 6 version of the mod. Could not get the Android 8 mod to work. Thank you for the guide
Click to expand...
Click to collapse
i meant to say 2,3 times , my mistake , i amended, shorting them removes the previous preloader stuff , i may be noob here but this is what worked for me

The method I had to use slightly differs from everything I have read.
1.) I wired a toggle switch to my positive lead. Left it in the off position (no power to head unit)
2.) I connected my radio to my PC (most instructions said do this after)
3.) Pressed the download button in flash_tool.
4.) Shorted the test points and turned on the toggle switch. As soon as I flipped the switch the radio connected and flashed %100.
I actually soldered a button to the test points to make it easier and in case I have to do it again. Took me a minute but then I realized it's just the volume up button and the procedure is essentially the same as putting a phone into download mode.

dustindavidson900 said:
The method I had to use slightly differs from everything I have read.
1.) I wired a toggle switch to my positive lead. Left it in the off position (no power to head unit)
2.) I connected my radio to my PC (most instructions said do this after)
3.) Pressed the download button in flash_tool.
4.) Shorted the test points and turned on the toggle switch. As soon as I flipped the switch the radio connected and flashed %100.
I actually soldered a button to the test points to make it easier and in case I have to do it again. Took me a minute but then I realized it's just the volume up button and the procedure is essentially the same as putting a phone into download mode.
Click to expand...
Click to collapse
Soldering a button switch is indeed by far the best approach. However since the majority of folks here are very new to these types of units, the guide makers here aim to keep it as simple as possible.
You're correct about the buttons and their functionality but since the majority of these devices come without physical buttons, you need to force download mode this way.
Finally, test point method is only required if you mess up your preloader. This should rarely happen. The only times you need to write a new preloader is when changing Android API, i.e upgrading or downgrading. And of course if you modify some of the hardware inside.
The majority of times users accidentally delete the preloader from their units in FlashTool.

I thing i found the picture for the test points but i am a little confuses 2 and three are on the same pad but 1 and 4 are different. Do i short them all together?

ian1mm989 said:
I thing i found the picture for the test points but i am a little confuses 2 and three are on the same pad but 1 and 4 are different. Do i short them all together?
View attachment 5389427
Click to expand...
Click to collapse
Also my board looks a little different.

ian1mm989 said:
Also my board looks a little different.
View attachment 5389429
Click to expand...
Click to collapse
Please read the instructions carefully. The link is in the main post.

I have problem with my Unit (Ebilaen YT9216BF 2GB/32GB).
I installed your firmware, and try reboot to twrp (using command: reboot recovery).
After that my unit doesn't boot (black screen).
After that i want to install TWRP (by SPFlashTools as says Tutorial), but Unit was bricked.
My problem is i didn't make backup firmware.
Right now when i try to unbrick my Unit (using a lot of firmware versions) in SP Flash Tools has error: s_ft_enable_dram_fail (4032) (olso when using TestPoint in motherboard).
I think this error means that i have wrong preloader.bin
Any chance to unbrick Unit without having original firmware?
Information about Unit from motherboard:
B9216BF v0.5/C 32G
A005-B9216BF011(9.0)
20210220
Problem solved. I find correcr preloader.bin

ian1mm989 said:
Also my board looks a little different.
View attachment 5389429
Click to expand...
Click to collapse
Doesn't look that different to me. Here are your 2 test points.

dustindavidson900 said:
The method I had to use slightly differs from everything I have read.
1.) I wired a toggle switch to my positive lead. Left it in the off position (no power to head unit)
Click to expand...
Click to collapse
You could share a picture of your soldered button. Some folks here might find it helpful
I'm thinking of making a guide going for a permanent mod, where the soldered tactile SMD button will be accessible through a small hole in the back of the head unit (similar to how you access the RESET button). That way you can use a 'needle' to short the test points, rather than picking the unit apart every time.

PX6 Android 11 head unit (MTCH MCU firmware) and Peugeot RCZ JBL Amplifier issue

Hi,
I have the same well-known issue that exists with most Android head units and Peugeot JBL amplifiers.
The amplifier only works until volume knob is adjusted, the issue is technically the same as in this video for example:
Of course, "Amplifier" is enabled in factory settings menu.
MY head unit looks the same as in the video but with PX6 and Android 11.
MCU ver: MTCH_MX_V3.81_1
When I ordered this unit, I asked 3 times the distributor if the head unit is complatible with JBL amplifier and he assured about compatibility.
Till then I discussed with the distributor many times but it seems they are lost and I afraid they won't provide any working solution...
Since all ingoing and outgoing CAN communication works otherwise (ie. remote control buttons, car menu controlling, parking radar, car diagnostics reading, VOLUME ADJUSTMENT, etc.) I'm quite sure this issue is realted to firmware not to hardware (CAN decoder). I read some posts on the internet where MCU update solved this issue.
So I'm looking for any suggestions or perhaps a newer MCU file to test with, or any older MCU files to downgrade (if downgrading is possible).
Thank you in advance,
best regards
Adrian
ps.: my car's model code is: 12372UY, Peugeot RCZ 1.6THP with factory JBL amplifier

nhadrian said:
Hi,
I have the same well-known issue that exists with most Android head units and Peugeot JBL amplifiers.
The amplifier only works until volume knob is adjusted, the issue is technically the same as in this video for example:
Of course, "Amplifier" is enabled in factory settings menu.
MY head unit looks the same as in the video but with PX6 and Android 11.
MCU ver: MTCH_MX_V3.81_1
When I ordered this unit, I asked 3 times the distributor if the head unit is complatible with JBL amplifier and he assured about compatibility.
Till then I discussed with the distributor many times but it seems they are lost and I afraid they won't provide any working solution...
Since all ingoing and outgoing CAN communication works otherwise (ie. remote control buttons, car menu controlling, parking radar, car diagnostics reading, VOLUME ADJUSTMENT, etc.) I'm quite sure this issue is realted to firmware not to hardware (CAN decoder). I read some posts on the internet where MCU update solved this issue.
So I'm looking for any suggestions or perhaps a newer MCU file to test with, or any older MCU files to downgrade (if downgrading is possible).
Thank you in advance,
best regards
Adrian
ps.: my car's model code is: 12372UY, Peugeot RCZ 1.6THP with factory JBL amplifier
Click to expand...
Click to collapse
Hi...
Try with CHS based software for your device, it is android 10, do a backup of your software first just in case, then update from USB, test and see if works
SOFTWARE : https://drive.google.com/file/d/1Ta2vL7Fc8tWmzmRxaJ-JMYGmlYYnRmud/view?usp=sharing
If not working, try with EXTRON softwares. Find it on this forum , there is a link for it somewhere in posts.

If issue is not with firmware (if it is the same problem) try leveling audio input (hidden/factory menu/admin menu - asks pin code) to a correct one in menu other or audio or what else is in admin menu.

Anton TNT said:
If issue is not with firmware (if it is the same problem) try leveling audio input (hidden/factory menu/admin menu - asks pin code) to a correct one in menu other or audio or what else is in admin menu.
Click to expand...
Click to collapse
I tried this first but didn't help.

Anton TNT said:
Hi...
Try with CHS based software for your device, it is android 10, do a backup of your software first just in case, then update from USB, test and see if works
SOFTWARE : https://drive.google.com/file/d/1Ta2vL7Fc8tWmzmRxaJ-JMYGmlYYnRmud/view?usp=sharing
If not working, try with EXTRON softwares. Find it on this forum , there is a link for it somewhere in posts.
Click to expand...
Click to collapse
Can you please tell me in a few words what is the easiest way of backing up my compete system fw? I only found how to upgrade, but not a complete system backup. Thank you in advance.

nhadrian said:
Can you please tell me in a few words what is the easiest way of backing up my compete system fw? I only found how to upgrade, but not a complete system backup. Thank you in advance.
Click to expand...
Click to collapse
There is a backup option in admin/hidden menu (pin 8888 or 0000 or what ever it is). Just plug nUSB and transfer all files, including system image (xxxx.img etc.).
If not there I do not no where it is. Every device is different. If not found, prior to update, ask seller to give you original software if need to install again. (NOTE: softwqare is as is, and seller or other like myself that are giving you this update are not responsible for any misconduct or defected softwares after updates, so watch what you are doing)

Thank you for your kind reply. I made a short video about the model and build details as well as the Factory menu. Unfortunatelly there aren't any backup option. I was asking the supplier for the factory firmware, I hope they'll send it to have a backup.
Otherwise it looks like this is a PX6 "A-Media Auto" head unit. Does the fw you sent just fit for this taking into account the details in my video?

Refer MTCD forums, unit is a MTCD variant.
You will also find Yandisk based MCU and Android firmware. Stay with same MCU type (MX).

marchnz said:
Refer MTCD forums, unit is a MTCD variant.
You will also find Yandisk based MCU and Android firmware. Stay with same MCU type (MX).
Click to expand...
Click to collapse
Thank you for the information. Do you know what is the safest way of downgrading to A10? Most of the firmwares are A10 or earlier, and it is noted that only for up to A10.

nhadrian said:
Thank you for your kind reply. I made a short video about the model and build details as well as the Factory menu. Unfortunatelly there aren't any backup option. I was asking the supplier for the factory firmware, I hope they'll send it to have a backup.
Otherwise it looks like this is a PX6 "A-Media Auto" head unit. Does the fw you sent just fit for this taking into account the details in my video?
Click to expand...
Click to collapse
What kind of Peugeot is it ? What model ?
If 301-308 version use different PSA canbus settings untill all commands and apps work.
Will look for my psa settings f canbus and took picture of it.

Anton TNT said:
What kind of Peugeot is it ? What model ?
If 301-308 version use different PSA canbus settings untill all commands and apps work.
Will look for my psa settings f canbus and took picture of it.
Click to expand...
Click to collapse
It is a 2010 Peugeot RCZ with factory JBL amp.
My current canbus adapter is a Simple Soft PSA one (PA-SS-05) and canbus setting is Nr.61 - as shown on the video. I have everything working like reverse radar, steering wheel remote buttons, A/C feedback, etc. The only thing is the JBL that do not remain on.

UPDATE: I got an update.zip from the seller. It was a downgrade to Android 10. After installing the update, device stuck at boot logo (peugeot animation). Sometimes reset itself, like in 10 minutes or so. Can it be recovered somehow?

nhadrian said:
UPDATE: I got an update.zip from the seller. It was a downgrade to Android 10. After installing the update, device stuck at boot logo (peugeot animation). Sometimes reset itself, like in 10 minutes or so. Can it be recovered somehow?
Click to expand...
Click to collapse
You must update again a let it finish update till inside android system, then remove usb or sdcard wich contains image for system and reboot with pin code, enter 4 or justbtake off ignirion key. As soon as gets inside android system, purge memory from factory menu, with pin 8888 or what is yours to get in. Go to setting for memory if you have it and it must not write to any sd card or usb attached in system. As soon system is recognozed it will take settings from internal memory not from usb or cards.

Hi, did you manage to update successfuly?

Anton TNT said:
Hi, did you manage to update successfuly?
Click to expand...
Click to collapse
Unfortunatelly not. Still waiting for the seller to provide me a firmware in img. Or a flash tool.
I can't install the update.zip by RKTools, not recognized file format.
But at least I know how to enter recovery mode and drivers are installed on my PC, RKTools recognize it.
I tried to flash the firmware you posted here earlier but the tool quitsas soon as I try to load it.

nhadrian said:
Unfortunatelly not. Still waiting for the seller to provide me a firmware in img. Or a flash tool.
I can't install the update.zip by RKTools, not recognized file format.
But at least I know how to enter recovery mode and drivers are installed on my PC, RKTools recognize it.
I tried to flash the firmware you posted here earlier but the tool quitsas soon as I try to load it.
Click to expand...
Click to collapse
Your device is an MTCD variant. Refer mtcd forums and my recovery threads. If SDCARD recovery does not work, use OTG recovery per my posts

Here is the OTA update.zip I got from that idiot chinese seller:
1.01 GB file on MEGA
mega.nz
He said it is a complete firmware, this is the folder content (zip is 1 Gig):
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Can anybody help me converting to an .img for OTG flashing, or an SD-card image (which I can write to an SD-card with balena etcher)? I'd be really thankful (donate on paypal if succeed), I'd still remain on "official" firmware for my device, for a possible warrantee dispute...
Thank you guys in advance!!!

I still don't know how to install any firmwares in .zip container (either my factory one, hal9k or malysik).
My device has black screen during recovery boot, so the only chance is using the rockchip tools or SD card method. I was trying to find topics on how to convert the .zip package to img but can't find any information.
Please someone help!

nhadrian said:
I still don't know how to install any firmwares in .zip container (either my factory one, hal9k or malysik).
My device has black screen during recovery boot, so the only chance is using the rockchip tools or SD card method. I was trying to find topics on how to convert the .zip package to img but can't find any information.
Please someone help!
Click to expand...
Click to collapse
Use .zip file in usb, if not readable prior to startup of unit, press and hold Reset button - a litlle hole on device - and keep holding while usb with update is in port. Release reset button and system will boot up and read usb files and update device. If not read, unzip files inside .zip and place them in usb , just two files .img and .upd and try again same procedure with reset button.

Anton TNT said:
Use .zip file in usb, if not readable prior to startup of unit, press and hold Reset button - a litlle hole on device - and keep holding while usb with update is in port. Release reset button and system will boot up and read usb files and update device. If not read, unzip files inside .zip and place them in usb , just two files .img and .upd and try again same procedure with reset button.
Click to expand...
Click to collapse
Neither of this method works. Every time it boots into the main system (and the infinite Peugeot logo).

Brand new UIS8762 qled 6gb 128gb 8core never started, and no support from Witson

Hi,
I've been googling and searching here and on Youtube for three weeks and I can't find any help.
My brand new head unit doesn't start, and has never started. The touch buttons don't work so after hours and days seaching the web I found out that I could at least get it to the boot logo by pushing a pin into the reset hole for 10 seconds, another short push and then a third push for 5 seconds, but that's about it.
Sometimes when I do that I get to a "no command" screen and then nothing.
When I contacted Witson who sold it to me, they sent me a file to install, but the problem is that the update stops (around 80-90%) and reboots before it's finished. After 3 restarts/reboots of the update it just goes black again. After sending several photos and videos to Witson of what's going on I asked for a refund and then they just stopped answering me. Nice, huh. (And I've followed their instructions to push the reset button when the boot logo appears - let it reboot - push the reset button when the boot logo appears - let it reboot - push the reset button when the boot logo appears.
So now I'm stuck here with a head unit that's never been used. Could there be a chance that they sent me the wrong update perhaps? I'm not used to head units but I've tried many things to solve it. I can't get into recovery mode, god knows I've tried for days with maaaany different tricks picked up on the web. I've even opened it up and tried to reset by short circuiting the special poles people say you should do. Nothing helps. I've tried to figure out what other brand sells these to find another file to install, and so far I've tried at least 10 different files, both USB contacts and three different USB FAT32 sticks, but no difference. Boot loop is the only thing this head unit is capable of.
If anyony could kindly assist me it would be extremely appreciated.
I'll try to post some pictures for you. I don't even know the proper name of this thing.
It's supposed to be a Witson DHG (W2-DHX1001) with Android 12, , but it seems to have many names. As I said, it's never started up properly and I've never played with a device like this before.
Many thanks!
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

This looks like a UIS 7862 FYT unit. DO the files they sent include a lsec6315update and a 6315_1.zip?
Normally, when the update fails you will get a message in red about the failure and the unit will reboot after 5 minutes or so, yours just reboots?
Anyway, if you got the unit from Aliexpress the safest thing would be to open a dispute with them.

Hi,
Thanks for your reply.
Thanks, I'm not by the computer right now but they sent me a 2,1gb zip-file with a zipped 6315 file name in it. (Does that make sense? ) Not sure if both those files was in that package, but one of them was.
I can't recall the exact name right now. But they just wrote that I should unzip the big file as is onto a USB stick and do as described earlier.
There was no red alert text when I used the file. Only reboot after reboot at around midnight 80% install. (One of the other files I downloaded later from the web showed that red failure text)
I did open a dispute and was reimbursed $160 of the $400 I spent in total. So here I am $240 down and a piece of glass.
Would be fantastic if someone has a file that fits this head unit or someone knows if there's a possibility that the main board or something else is broken.
Cheers

You definitely have a FYT unit.
There is plenty of info on this unit in this thread.

m00n61 said:
You definitely have a FYT unit.
There is plenty of info on this unit in this thread.
Click to expand...
Click to collapse
Thanks, I'll check it out. Much appreciated.

m00n61 said:
You definitely have a FYT unit.
There is plenty of info on this unit in this thread.
Click to expand...
Click to collapse
Ah, yes I recognize that thread. Been reading a lot in it but I couldn't make anything out of it in relation to my unit. I guess I have to give it another go and see if I can make anything out of it now when I know it's a FYT unit, thanks.

Short version:
Get a FAT32-formatted USB stick, good quality. Bad USBs may cause setup to abort.
Copy the firmware files (minimum: config.txt, 6315_1.zip, lsec6315update and updatecfg.txt) to the stick.
updatecfg.txt should contain
test
twipe_all
config.txt should look like
#test
#ro.fyt.launcher = com.android.launcher04
sys.fyt.bluetooth_type=1
persist.fyt.zh_frontview_enable=false
sys.fyt.ec_version=6
ro.fyt.splitscreen=0
persist.syu.camera360 = 1
# 0不带360 1带360
persist.lsec.pip_rect_clear=true
ro.sf.swrotation=90
persist.lsec.enable_a2dp=true
ro.lsec.btname=Bluetooth 2
persist.lsec.iphone_usb=true
carmark#0
persist.sys.navi.carmarkset=0
launcher name may be different, depends on firmware version.
Make sure 6315_1.zip and lsec6315 update are both dated either before or after July 2, 2022. You cannot mix on from before with another one from after.
You can get a suitable firmware from here. Look for the 7862/9" 10" line ( or 7862-9"-10"-360: if you have 360 view)
Insert the USB and start the unit. You may have to reset up to 5 times until it boots from the USB stick.
If you get an error message, post it here.
If you don't and it still aborts at 80% chances are you have a HW failure

Amazing, thank you for the detailed explanation. Well needed for a noob in this area.
I'll try it out when I get back on the computer later tonight. I guess the night sleep is canceled.
Thanks again, very impressive.
I'll get back to you as soon as I have any results.

I think that this file update he got is not for his device, it does not recognize hardware and stops in a middle of process of install.
Install other updates suitable for your model and year and see if error repeats again.

Anton TNT said:
I think that this file update he got is not for his device, it does not recognize hardware and stops in a middle of process of install.
Install other updates suitable for your model and year and see if error repeats again.
Click to expand...
Click to collapse
Hi Anton,
Thanks. It's what I suspected too. But it seems all the different files I've tried has behaved the same way so far. I'm trying this file that was recommended by @m00n61 here above. So far to reboots and same thing. Stops and reboots at the exact same spot. Switching USB and USB stick in a few minutes for continued trying.

m00n61 said:
Short version:
Get a FAT32-formatted USB stick, good quality. Bad USBs may cause setup to abort.
Copy the firmware files (minimum: config.txt, 6315_1.zip, lsec6315update and updatecfg.txt) to the stick.
updatecfg.txt should contain
test
twipe_all
config.txt should look like
#test
#ro.fyt.launcher = com.android.launcher04
sys.fyt.bluetooth_type=1
persist.fyt.zh_frontview_enable=false
sys.fyt.ec_version=6
ro.fyt.splitscreen=0
persist.syu.camera360 = 1
# 0不带360 1带360
persist.lsec.pip_rect_clear=true
ro.sf.swrotation=90
persist.lsec.enable_a2dp=true
ro.lsec.btname=Bluetooth 2
persist.lsec.iphone_usb=true
carmark#0
persist.sys.navi.carmarkset=0
launcher name may be different, depends on firmware version.
Make sure 6315_1.zip and lsec6315 update are both dated either before or after July 2, 2022. You cannot mix on from before with another one from after.
You can get a suitable firmware from here. Look for the 7862/9" 10" line ( or 7862-9"-10"-360: if you have 360 view)
Insert the USB and start the unit. You may have to reset up to 5 times until it boots from the USB stick.
If you get an error message, post it here.
If you don't and it still aborts at 80% chances are you have a HW failure
Click to expand...
Click to collapse
Yes, unfortunately it looks like it's the same thing with the recommended files (7862/9). It reboots at the same point at the install and no error messages. I'm trying out the other USB input now and will then try yet another USB stick.
Thanks again.

So I tried to install both the whole file and only the necessary files @m00n61 mentioned earlier. And I tried this on both of the USB inputs and with three different USB sticks. All with the same outcome. the install stops exactly where I showed in the picture in the first post, and then reboots, restarts the install and it goes on like this three times until it just goes black.
Is there any other way that may help? I've read about connecting the head unit to a computer with a USBa-USBa cable and some sort of sofware.
Thanks for your input!

Peter studio tech said:
Is there any other way that may help? I've read about connecting the head unit to a computer with a USBa-USBa cable and some sort of sofware.
Click to expand...
Click to collapse
Yes, including flashing of ROM but it must be done with guidance and by a pro...
But it is last resort, let's try something else first.
Format SD card (if device has slot for it) in FAT 32 not exFAT with default allocation settings - not USB drive but SD card !
- if device has no SD card slot use any SD card reader if you have any and insert it then into USB slot with update files on it
- before unit boot try tapping with one finger on the middle of screen till see message DETECTED
- let the update begin
- if same error appears - press RESET button rapidly each time units starts for 5 times
- as soon as unit starts again tap the screen with all five fingers till recovery mode begins (message erasing will apear and begin to erase system files)
- when boots again into Android download a application named FILE MANAGER from Google Playstore
- go to app
- on the left side of app there is a menu - choose ROOT folder it looks like this "/.."
- there are system files that are hidden from users
- if unit is rooted you can go inside each of this folder
- if not rooted, delete the CACHE folder
- restart unit and try update again with SD card or USB drive
Fingers crossed !

Anton TNT said:
Yes, including flashing of ROM but it must be done with guidance and by a pro...
But it is last resort, let's try something else first.
Format SD card (if device has slot for it) in FAT 32 not exFAT with default allocation settings - not USB drive but SD card !
- if device has no SD card slot use any SD card reader if you have any and insert it then into USB slot with update files on it
- before unit boot try tapping with one finger on the middle of screen till see message DETECTED
- let the update begin
- if same error appears - press RESET button rapidly each time units starts for 5 times
- as soon as unit starts again tap the screen with all five fingers till recovery mode begins (message erasing will apear and begin to erase system files)
- when boots again into Android download a application named FILE MANAGER from Google Playstore
- go to app
- on the left side of app there is a menu - choose ROOT folder it looks like this "/.."
- there are system files that are hidden from users
- if unit is rooted you can go inside each of this folder
- if not rooted, delete the CACHE folder
- restart unit and try update again with SD card or USB drive
Fingers crossed !
Click to expand...
Click to collapse

Thank you so much! I'll try it out tonight! (it's morning here)
The unit has no card slot so I'll give it a go with a card reader.
I've read about the five finger tap (which didn't work on this one) but never the one finger tap. Looking forward to try out your suggestions!
Thanks!

Peter studio tech said:
Thank you so much! I'll try it out tonight! (it's morning here)
The unit has no card slot so I'll give it a go with a card reader.
I've read about the five finger tap (which didn't work on this one) but never the one finger tap. Looking forward to try out your suggestions!
Thanks!
Click to expand...
Click to collapse
Five tap is not working on every device, every device has different way.
You must find your way to get into recovery mode and get system to clear cache and junk files
Also, maybe you have residual update files left on main folders like factorysettings.bin log files mem.ini etc. delete those too !
BTW you can go into recovery mode if you can access Android and go from infotainment menu or from factory settings (accessed with PIN code)

Yes thank you, I've yet to figure out how to get into recovery mode. And I've never been able to start the device, so recovery mode seems like prio one so far, if I can't get any of the files to work via SD card etc.
Thanks!