Unfortunately, while removing the back cover 4 of the clips broke, because the plastic where the clips go in is so thin, but that's not mentioned in the guide. I tried to remove the back cover slowly by dragging along the edge the iFixit clips, but that wasn't enough to remove the cover. Maybe a part of that guide can change to make sure the back cover is removed safely without braking the keyboard's clips since they are so thin and easy to break.