Chosen Solution
I accidentally dropped milk on my Macbook. Few amount of milk has seeped into the left side space between display screen and keyboard. I dried it and left it for few days. Later I started it. I can hear the startup sound and cooling fan goes well but my screen went black. I thought the lcd / led screen was dead but on further investigation (shining a light through the apple logo) I found that the screen is working fine, its the backlight failure. How can i fix it…?
I’d check the backlight fuse first. It’s on the board near the lcd ribbon connector. Should have a letter “P” on it. Did you actually open the macbook and dry everything or just put it in like a bag of rice?
