[Recovery access] Jitu QF001 / Roco K706 - Hizpo / Ossuret S4 - S8 (UIS 7862) Headunits (no FYT)

[blue_one]

Hi all,

this is a dedicated thread for gaining access to the recovery on the QF001 head units. All other infos and general discussions are posted here: https://forum.xda-developers.com/t/...d-units-with-uis-7862s-not-fyt-based.4525675/

What we have got so far:

• the whole firmware as flashable zip file
• adb access with root user via wireless on port 9876
• reboot bootloader brings up a screen which says "fastboot mode" but thats worthless without a working usb connection
• reboot recovery boots for a second into a kind of recovery screen and than automatically reboots into normal mode

What i have tried myself so far:

• flashing the device with a self cooked firmware (SuperR) with integrated magisk recovery. The device went into flash mode but did not accept the file due to signature issues
• several method to push the reset button to get into recovery. no success...

Every info is very wellcome. Happy trying to all!

Cheers

 

[nyp42]

I tried this. It didn't work but I'm not sure I was doing it right.

There is a link to a text file with instruction in the YouTube comments.

 

[Telperion]

Rebooting into recovery from system shows this briefly, then boots back into the system.

 

[Vėžys]

I found something interesting. It's from the FYT device, but it's done very similarly with us.
Maybe it would be possible to make Usb Otg working
Motherboard on photo - our device

 

[popamor]

I found something interesting. It's from the FYT device, but it's done very similarly with us.
Maybe it would be possible to make Usb Otg working

Can you please link the post on the FYT device that talks more about USB OTG capability?

 

[Vėžys]

It's from the 4Pda forum, it's on Russian language

Головные устройства Unisoc на процессоре UIS7862 / SC9863a (UIS8581A) Android 10 - 4PDA

Головные устройства Unisoc на процессоре UIS7862 / SC9863a (UIS8581A) Android 10, [Головное устройство][Автомагнитола][Android]

4pda.to

 

[And-S]

Hello, people. I have good news for the owners of bricks: my seller kindly provided me with the tools to repair a device with a damaged operating system - a flasher and the necessary files for the S8 1024x600. Download all the contents of the folder and sort it out. I don't have time yet. Good luck!

Восстановление_кирпича-S8_1024х600 - Google Drive

drive.google.com

 

[Vėžys]

Great, everything works. A big thank you. Finally unbrick my device

 

[Clyde72]

Hello, people. I have good news for the owners of bricks: my seller kindly provided me with the tools to repair a device with a damaged operating system - a flasher and the necessary files for the S8 1024x600. Download all the contents of the folder and sort it out. I don't have time yet. Good luck!

Восстановление_кирпича-S8_1024х600 - Google Drive

drive.google.com

Looks like we have at minimum an USB driver now to connect the HU to pc... looks like it is included in the package for recovery tool...

 

[super_paws]

Is there anyway to get into recovery mode if I'm stuck at the boot logo?

 

[blue_one]

Is there anyway to get into recovery mode if I'm stuck at the boot logo?

Not directly but there is a software solution mentioned in the other thread. Someone could revive his head unit with that software.

 

[super_paws]

Thanks to everyone that helped! I have a working unit again!

Figured I'd write a few things here to help anyone else that might have a bricked device.

My device had a corrupt build.prop, so it was not able to boot the system partition at all. On the screen, it was stuck on the initial boot logo screen with the "Powered by Android" logo.

1) Download the above posted package for 2 assets: a) PAC file containing the stock firmware, and b) drivers for the SPD interface of the device
2) For a non-4G device which I had, I went to spdflashtool.com to download the Research Tool. This will allow you to flash firmware onto a non-4G device.
3) Ensure you have enough disk space (~3-4GB) on the same partition as the Research Tool app.
4) Open Research Tool and load the PAC file.
5) Follow the .doc file in the posted package for wiring up the USB interface to the SPD interface. Essentially, you are connecting USB to the 8-pin header on the device, and accessing data via the UART pins. Pin 1 on the 10-pin connector needs to be grounded in order to get the device into the mode for flashing.
6) Press start on Research Tool, and once completed, you should have a freshly flashed device

 

[yoyo linuxien]

Hi, I have the same problem being stuck on Powered by Android logo.

I tried this technique without any success, I have a S3, 4G+Wifi version. Any idea how to solve this problem ? Thanks !

Thanks to everyone that helped! I have a working unit again!

Figured I'd write a few things here to help anyone else that might have a bricked device.

My device had a corrupt build.prop, so it was not able to boot the system partition at all. On the screen, it was stuck on the initial boot logo screen with the "Powered by Android" logo.

1) Download the above posted package for 2 assets: a) PAC file containing the stock firmware, and b) drivers for the SPD interface of the device
2) For a non-4G device which I had, I went to spdflashtool.com to download the Research Tool. This will allow you to flash firmware onto a non-4G device.
3) Ensure you have enough disk space (~3-4GB) on the same partition as the Research Tool app.
4) Open Research Tool and load the PAC file.
5) Follow the .doc file in the posted package for wiring up the USB interface to the SPD interface. Essentially, you are connecting USB to the 8-pin header on the device, and accessing data via the UART pins. Pin 1 on the 10-pin connector needs to be grounded in order to get the device into the mode for flashing.
6) Press start on Research Tool, and once completed, you should have a freshly flashed device

 

[Vėžys]

there is a complete instruction.
You're doing something wrong.
Write what and how you do