Seattle Laptop uses a high powered microscope, schematics, and years of experience to track down failed components on MacBook logicboards and replace them. We can in most cases repair a damaged, shorted, of failed logicboard, and then repair a MacBook where replacing the logicboard would be too expensive. We have repaired hundreds of logicboards over the years, and when we are successful, we save our customers a ton of money. We also have a bga logicboard re-working macine we have used extensively to repair or replace failed video cards. If someone told you your MacBook could not be repaired because your logicboard was bad, bring it in so we can discuss repairing it, instead of replacing it.