my macbook unibody fails to boot after chime
hi, when i press power button, i hear the start up sound, but nothing appears on my screen. it is completely black,no cursor,nothing. i tried to safe boot, and boot with command +R, and booting while pressing down options key. none of them worked. i thought my screen is dead but my brightness keys work, it changes from a complete black to a lighter black. what should i do?
MacBook