STM32429I-EVAL1 Touchscreen does not work

[Unlimit]

Hello

I'm using STM32429I-EVAL1 and its touchscreen is not working.

When I plug st-link cable, originally touchscreen was initialized and displayed menu.

But now, it only displays totally white screen and there is no reaction when I touch it.

I did Software Reset and Hardware Reset with STM32CubeProgrammer, but is it effect to touchscreen?

How can I solve this?

[Tesla DeLorean]

Yeah, if you change the firmware that was on it or erase it, the screen will revert to it's power on state with the back-light. Everything here is dependent of software.

>>How can I solve this?

Put the original firmware back on, or an example that drives the screen and reads the touch sensor chip.

[Tesla DeLorean]

https://github.com/STMicroelectronics/STM32CubeF4/tree/master/Projects/STM324x9I_EVAL/Applications/Display

https://github.com/STMicroelectronics/STM32CubeF4/tree/master/Projects/STM324x9I_EVAL/Examples/BSP