Screen does not wake up on Samsung Tab Pro 10.1 (SM T520)

[AC Question]

I have a SM T520, 10.1 Tab Pro. I started having an issue with screen waking up.. When I tried to wake the screen up, buttons lit up. but screen stays dark, no matter what I do, I reset to default settings, I installed Cyanogenmod 12.1, whatever I do same result. Somebody says it is hardware failure. but when I reboot the screen is visible, it stays visible until OS darkens it, once darkened, the only way it comes alive is if tablet is rebooted.

Please help

 

[B. Diddy]

Welcome to Android Central! Does this happen in Safe Mode as well?