オリジナル投稿者： arbaman ,
Open the bottom case and unplug the battery from the logic board, it should work even without it. If it starts normally it might be a faulty battery with internal shorts and it’s worth trying to replace it. If it doesn’t double check you have a working magsafe, if you have a green light magsafe is ok and it might be a logic board issue. Anything unusual in your Mac’s life ?