Touchscreen messed up after wrong firmware

Hello
Well guys , I have Jiayu G6 (mtk6592) , had to flash Stock Rom , but mistakenly downloaded and flashed Jiayu S2 (mtk6592) firmware .
the phone went Dead , then i downloaded and flashed the right Firmware for G6 . now its working fine but the touch screen messed up , when i click on something it will respond somewhere els ..
Flashed the stock recovery with sp flash tool , i tried all Stock recovery available for this device and same problem , i tried Restore my TWRP Backup but the touch screen problem did not fix ..
I have the whole backup which i made before flashing the S2 firmware ( see image attached ) .. but do not know what to do ?
any idea?
i do not know if the S2 Kernel burned something on the Mainboard .. i do not know if buying new touch screen will fix it or not

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