Hi Guys , Suddenly my Late 2011 Macbook Pro won't turn on . No lights , no Fan spin upon pressing the power button. MagSafe indicator is green although the battery has only little charge left. So far , I have tried to power it on by , 1 .Resetting the SMC 2. Using a different MagSafe Charger 3. Removed the battery and plug the MagSage while holding the power button and releasing it. 4. Replaced the battery from a different macbook pro. What could be the issue here ? I worried that the logic board is fried. Any help on how to diagnose the exact issue will be immensely helpful.