[T825Y] After updating to August security patch, shows black screen after boot

[Albert Song]

Hi. My T825Y (Open line XTC Philippines version) suddenly shows black screen after booting. Right after the "SAMSUNG" boot animation, the screen shows blank but I can pop up the power menu and it still shows. The "show screen touches" can also be seen when touching the screen. I tried clearing cache, booting in safe mode, but still no luck. I also notice that the back of the tab is very warm.

I just wanna know what caused this.

Planning to dirty flash the firmware T825YDXU2BRG3 to restore the device again. Thanks.

P.S. Stock recovery works and also the bootloader.