you may have either I/O board issues, Charger issues, or Logic Board issues, is there any known liquid damage at all?
if there isn't, you should take it to the apple store, if there is there you should get the board repair outside of apple as they will hit you with $750 repair,
Board repair we do for $150-$450 depending on how much damage,
What is the color of the MagSafe charger Green or Amber?
I would also review this Apple T/N to make sure the MagSafe charger is in good shape and the connectors are clean and healthy: Apple Portables: Troubleshooting MagSafe adapters
Dan さんによる
you may have either I/O board issues, Charger issues, or Logic Board issues, is there any known liquid damage at all?
if there isn't, you should take it to the apple store, if there is there you should get the board repair outside of apple as they will hit you with $750 repair,
Board repair we do for $150-$450 depending on how much damage,
Juan さんによる