Original-Beitrag von: sirlordhong

Original-Beitrag von::

I solved my problem by physically re-seating the 'Backlight Ribbon Cable' after I did a new keyboard install it seemed I never had a good contact on that plug into the Logic Board. To see where the Backlight Ribbon Cable is  look on 'How to Remove the Logic Board' - it will be the first on your left - south of the cooling fan on the very bottom of the Logic Board near the battery. Good Luck - hope this helps - it drove me crazy for a few days.

Status:

open