j7 Prime (G610Y) blank screen after LCD Replacement

so as it says in the title,I replaced the broken LCD on my J7 Prime, apparently when booting up after 

"SAMSUNG Galaxy J7 PRIME" shows up it all goes blank(blank but it lights up)

I know the phone is still working(Volume key sound responds when pressing, and can be detected by PC)

and the LCD also works since it shows "SAMSUNG Galaxy J7 PRIME" in Download mode

also, I was running a custom ROM when the lcd broke so I revert back to stock after replacing the lcd, but nothing changed.

is there a way to fix this or other way around to boot it up properly?