No keyboard illumination

  1. Go to the Keyboard system preference pane and make sure the "Illuminate keyboard in low light conditions" check box is checked. Cover the left and right speaker grills with your hands. Note: The keyboard illumination is not bright enough to be seen in most well lit spaces. In order to view the keys being illuminated, the ambient light needs to be dim.
  2. Check the keyboard backlight flex cable connection to the top case flex cable.
  3. Replace the keyboard.
  4. Replace the top case.
  5. Replace the left ALS board.
  6. Replace the logic board.

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Apple Technologies Explained

Apple Technologies Explained

What is So Great About Apples Design Concepts? There is always a reason why consumers are drawn to a particular brand of product. Apple has the record for drawing people in, and not just Americans, why? Ease of use, thats why.

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