Answer to: ifixit guide for repair of yellow tint?The cause of the yellow colouration is easy. The cure is not. The LED string at the bottom edge of the LCD is screwed to a heatsink across the width of the screen. Reflective tape is installed so as to enclose and form a light-box. It is the reflective tape suffering discolouration where it is in close proximity to each LED, that is doing the deed. Is it overheating of the LEDs, or is it unfit for purpose tape? I have tried just water, then isopropyl alcohol. Neither cleared the problem.