Answer to: Display backlighting does not workI got the same problem as many of you when we replace the screen in the Mac Book Pro A1226. I just replace the screen on my Mac Book A1226 Santa Rosa, I installed the same model and serie of my old screen and I got the same problem. The backlight of the screen is not working. With a flash light, I can see that the operating system is working in my comp and it goes into the internet but the imagen is too dark arround only for 15% of backlight. I can guess that the led driver board is the problem but I do not want to star buying things that could not be. Just want to wait to see if anyone solve this problem to help us to resolve the same problem we had. Helpfully, someone will solve the problem soon and share the information with us of what he/she did to solve the problem. thanks.