LP8550 backlight Chip works on most MacBook pro and MacBook air devices.
Dim to black screen on your MacBook could be an indication that LP8550 is faulty.
[embedyt] https://www.youtube.com/watch?v=QMONUiQlsrY[/embedyt]
[embedyt] https://www.youtube.com/watch?v=0joWbs9_ZfI[/embedyt]
