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My MacBook Pro doesn’t turn on and I have no LED light on the chargers MagSafe. Is it a bad I/O board or something else. The charger is working perfectly and the battery is good. Thank You
Review this Apple T/N Apple Portables: Troubleshooting MagSafe adapters Make sure the middle pin is sitting proud. You should also make sure the systems MagSafe socket is clean as any build up of dirt can interfere with the mating of the contacts as well as make sure the metal contact are clean and not damaged like this one is
