My MBP is 3 years and 2 months old (out of warranty). From last few days, I have been having a problem i.e. laptop doesn't start when i press the power button. When I press the power button, it makes a funny noise (not a beep) as if its trying to start but then it doesn't. There are times when the power button works fine and the laptop boots properly. When i close the lid of the laptop instead of the laptop going in the sleep mode, it somehow hibernates and saves the state because after opening the lid, the laptop doesn't start anymore. I need to press the power button which may or may not the start the laptop.
I have tried resetting the SMC but nothing happened. I don't know if its the logic board or something else. I plan to take the laptop to Apple care but would like to know before hand whats happening with the laptop.