Chosen Solution
When I open and turn on my MBP it makes the boot up sound and I can hear the fan running. The screen boots up in like a turquoise color and stays like that. Keyboard doesn’t light up. I left it running like that for an hour and nothing changes. The bottom of the laptop gets really hot. When I hold the power button to shut it back down the laptop shuts off. When I close the lid, reopen it and turn the laptop back on the screen stays black. The laptop is on but the screen and keyboard doesn’t light up. I also tried shining a light through the apple logo to see if the screen is on but just dim but it’s not. Can someone point me in the right direction? I was just using it a couple of days ago and everything was fine. The laptop was never dropped and no liquids were ever spilled on it. The laptop still looks brand new.
Lets try this, Restart your system and press the ‘‘‘T’’’ key to enter into Target Disk Mode. The screen should be showing a FireWire & Thunderbolt icons. Is this working? Reference: Mac startup key combinations
Have you tried a PRAM & SMC resets? It seems like Main Logic Board issue. The main graphics chip on the MLB for that year is notorious for failing. :(
