Dim screen

I'm helping a friend of mine with fixing his HP laptop which is only about a year and a half old. I would really appreciate any input on how to solve this problem. When I turn the laptop on, the screen is on but its so dim that you can barely see it. Only when you wiggle the laptop cover up and...

I am in need of help with my acer laptop model VA70, It boots up fine and I know the display works because I can faintly without a flashlight see my desktop, so I am guessing its some kind of backlight issue. At this point I have removed the cover and have check for any loose connecting cables...