Solved Lcd No Backlight Extra Monitor Works Fine Backlight Randomly Shine Macbook Pro 15 Core 2 Duo Models A1226 And A1260

Chosen Solution

NEED FOR SURE ANSWER IF POSSIBLE : ) My MBO was working just fine had fan noise then then went to sleep mode then when I attempted to wake it up the backlight was fully off i reseted everything sometimes randomly the screen lights up for a few seconds then back off but once in a blue moon. What can this be? It works with external monitor just fine keyboard lights up and all. I CAN SEE with a flashlight sideways everything just fine but no backlight. What can i test / check to see what the issue may be? THANKS : )

Since you can see the the desktop dimly your most probable failure is the LED driver board. Here’s how to replace it, but check your connections first: MacBook Pro 15" Core 2 Duo Models A1226 and A1260 LED Driver Board Replacement Here’s the part: MacBook Pro 15" (Models A1226/A1260) LED Driver Board