Really great guide. Did keyboard and I/o boardreplacements without any problem. Highly recommend getting a good tool kit before starting any of these projects. The one ifixit sells worked great for me. Also be sure to get a pentalope driver for the case screws.
im not a tech, but if you proceed slowly and carefully the keyboard replacement isn’t very difficult.
You’re actually pushing the connector from side to side toward the front of the case (or towards the track pad). It’s not a vertical motion at all.
I did this as my first DIY repair inside a MacBook. I'm pretty handy, but nothing close to a computer tech. I studied the guide a few times; ordered the Pentalope driver; bought a magnifying hobby light; set up an organized workstation and went to work. I did sweat through several of the cable and ribbon strap removals, but if you take your time and follow the guide it should work. I did find that having a set of precision tweezers and a couple of plastic spudgers was extremely helpful.
My need to attempt this was the result of stupidly spilling a beer all across my keyboard. After drying it out via a fan blowing on it 24/7 for 2 days I decided to crack it open and look for water damage to the LSI's . The area that appeared to be hit the worst was the I/0 board. So I removed it & cleaned with Isopropyl. Afterward, everything fired up and seemed to work fine. Until today. Now the left USB port seems to have died. Probably will replace the board. This guide made it possible. Thanks Jeff and Ifixit.