My 0 and command keys are not working. Reset the PRAM, installed a new copy of Mavericks and the keys still wouldn't work. Took it to the apple store and they ran some tests and said my keyboard had many keys that were on the verge of failing...? Not sure how they "measure" this but they said I need to replace both the keyboard and the top aluminum body which would cost ~$180 and take a week to fix... This is a purely hardware based issue. I would like to fix this myself at home. If you've had to replace the keyboard on a macbook pro mid 2010 13inch edition, could you help me out? I don't know if I need to replace the entire aluminum body along with the keyboard or just the keyboard itself. Also my backlight is working fine, do I need to buy a kit that includes the lighting too? Thanks!!!