I recently had a logic board repaired on my MBP (13 inch, 2011, i5) after it could not be turned on but now it has another issue. It suddenly stopped charging. The LED on magsafe does not turn ot at all. I moved it around a bit and blew into it and it started working again but now it stopped and even the moving around does not help anymore. What could be the problem? Is it the charger or has something broken again?