Please make sure the part number(820-XXXX or 661-XXXX) of your original logic board matches my listing. If you don't know where to find the part number, please send us a message with the serial number of your laptop. We will help to verify. Please make sure all the other components in your laptop are good. The motherboard will not work if you have another defective componentrams, video cable, heatsink, LCD, AC adapter, power jack, daughter board, etc...Sometimes a third party AC adapter or a short video cable can even damage the new motherboard. Please let us know the part number of your old motherboard and the detail symptom of both motherboards. We will try to help as much as we can. ALL LOGIC BOARDS WERE TESTED.
THANKS FOR LOOKING AND HAVE A GREAT DAY! The item "Apple MacBook Pro 13 A1278 i5 2.5GHz Logic Board 820-3115-B 661-6588 2012" is in sale since Thursday, February 15, 2018.
This item is in the category "Computers/Tablets & Networking\Computer Components & Parts\Motherboards". The seller is "caosuning" and is located in White Plains, New York. This item can be shipped to United States.