Why did my Samsung tablet 4 screen turned black when I keep on turning on?

[Bernardo Romero]

why did my Samsung tablet 4 screen turned black when i keep on turning on

when i turn on my tablet it`s black but when i turn it off it still makes the sound that it makes when you turn off your tablet but when i turn it on the screen gets grey so when i turn it off its completely black and it makes the sound that it makes when you turn off your Samsung tablet 4.