Fan Spin - No Boot - No Display
2012 A1278 Model on the bench.
It turns on, fan spins, but that is it nothing else happens.The sleep light is on.
I have tried, removing RAM, Swapping RAM, Without the KB connected, Without a display, different HDD / SSD, Different working HDD cable, Reset SMC, PRAM etc..... Board looks clean, no water damage evident. Owner siad it just wouldn't start anymore. It does charge the battery though.