is there a difference between A1278 and A1280

Hi,

A1278 is the model number for at least five Macbook Pros dating from 2009 to mid-2012 and A1280 seems to be a number for laptop batteries.

You should take a note of your serial number (About this Mac) and call an Apple store to get precise information.

It will make it easier to help you w/ your problem to know the exact model, size and year built.

Run your serial number here:

http://www.chipmunk.nl/klantenservice/applemodel.html

Post the result. You'll need the exact part number to replace the keyboard.