Unlike you, I completed the procedure exactly as indicated in this guide, but I couldn’t agree more with those last two lines of your comment. The repair kit for this is just too much. The attention to detail is just beautiful. I have always loved iFixit, but yesterday (when I performed the replacement) was a friendly reminder of how much I do.

BE EXTREMELY CAREFUL WITH THIS STEP both when disconnecting the cable connection points and while doing the reconnection. I damaged the J2 connector (Wi-Fi and Bluetooth are working just fine, though) while trying to reconnect it to the AirPort card. I’ll suggest, as others have here as well, to not disconnect the cables and just have them connected to the card the entire time as this is, IMHO, a completely unnecessary step to take while doing this whole procedure.

I insisted in removing the connector from the board and I sort of helped myself using the Jimmy tool that is sold by iFixit and, being careful enough, one can get this done without any damage to any of the parts.

Notice that the silver 3.5 mm T5 Torx screw is the same one you were asked to remove on step 21.

Notice that the silver 3.5 mm T5 Torx screw is the same one you’re going the be asked to remove on step 29.

I don’t know why, but my 15” Late 2013 had some sort of protector covering the lock, so I used tweezers to grab the thing and pull up the cable lock and it worked seamlessly.

VERY HELPFUL. Thank you.

I need to point out here that the replacement battery that I bought here at iFixit for this MacBook Air says that the battery calibration consists on draining the battery below 10%, then charging it uninterruptedly to 100%, but this is not consistent with the battery calibration that appears on this guide. Which one should I follow? Any additional thoughts on this? Thanks.

Just finished doing the feet replacement (using the iFixit replacement parts) on a late-2013 15 inch Retina MacBook Pro and it was just a perfect result. Thank you for this great guide.