So i have this macbook pro 15-inch. I got it around february last year (i think ). So just today i tried to charge it today and the light on the charger did not switch on...*gulp*. So i checked if there was debris in my magsafe port...yada yada and all that stuff i tried a different port but...nothing worked. So i tried powering on my macbook and i heard the big BUNGGGGGGGGGGGG noise but nothing appeared on my screen!! so i help the power button to power it off and i heard this buzzing sound (which i hear when i hold down my power button and it shuts down) and now im stuck! Please do help me.