Política de Apple para displays, sempre relativa claro... não é por faltar um que deixam de trocar!!! Até porque certos displays com problemas de poucos dead pixel agora, são prenuncio de muitos no futuro.
Display latch not working
Note: When the display is being closed, two latch hooks in the top of the display housing
should be magnetically pulled down through the slots in the top case and secured by the latch
mechanism. When the latch button is pushed, the hook should release and retract into the
display housing.
If the latch hook is broken, replace the display latch hook assembly.
When displaying a single color over the screen area, the LCD panel shows one or
more pixels that are not properly lit
To determine whether or not the display has an acceptable number of pixel anomalies, follow the steps below:
Set the display image to one of the following colors: all-white display, all-red display, all-green
display, or all-blue display. Knowledge Base article 112125: Service Diagnostics Matrix, has
the LCD Tester Diagnostic Utility that will generate these patterns on the screen.
Using a jeweler’s loupe, pocket microscope, or other magnifying device, identify and count each pixel anomaly:
• Bright subpixel anomaly = subpixel that is always on
• Dark subpixel anomaly = subpixel that is always off
The number of acceptable pixel anomalies for this system is:
Acceptable Number of Subpixel Anomalies
Bright Up to 3
Dark Up to 5
Combination Up to 7
If the number of subpixel anomalies exceeds the acceptable number listed in the above
chart, replace the display panel assembly.
Espero que seja esclarecedor...
Podes utilizar o Jscreen Fix para tentar resolver.....e para contares melhor quantos tens o Apple lcd tester!
Mas deves sempre em qualquer caso de dead pixeis recorrer à assistência.