My macbook pro has had a black screen and wont turn on after pulling out usb

6 months ago i pulled a usb out of my usb port and my laptop switched off and didn't turn on for a week, and it's just happened again after pulling out a HTMI cord that was connected to my television? have i blown up my macbook? SOMEONE HELP

Try resetting the SMC. Be sure to use the correct method for your computer.
http://support.apple.com/kb/ht3964

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