Quite recently the backlight on the LCD display just fully stopped working on my X-T2.
I can tell that the actual image of the display works fine by shining a flashlight on the display and being able to see the image on it.
I'm most likely going to try and take it in for repair. I however wanted to ask around just to make sure that I am not missing some obvious software setting (I am doubtful of this, but no harm in asking right) or if there is some easy fix that people know of.