Problem of firmware tablet ODYS IEOS QUAD

Hello need help about firmware of my tablet : ODYS IEOS QUAD
Réf PCB : 8B 94V-0 _ 1450KW _ V2.3
NAND : SKhynix H27UCG8T2BTR think = 8GB
RAM : leahkinn KPN055SS-ZBv1 think = 1GB
Graphic chipset : : ROCKCHIP RK618
I replace the tablet touch screen and suddenly the tablet won’t to boot
I fetch a lot for different firmware and think that is clone of chuwi v88hd 2nd generation
I flash with all details about loader 2.16 and last kernel ver 610 but always finich ok but I see only stable white screen and can’t do factory reset as talked in steps of flashing .
For info I disable the tablet touch screen and install without it but I have the same result .
Can anyone help me to find solution of my tablet , and thanks for help