As has been well noted, reassembly of this clip is not self-evident. The clip itself is not a symmetrical piece; rather, it has a small tab on one side. What is its purpose and what is the correct alignment of the tab as it’s placed over the connector? Moreover, the available iFixit tools are not adequate to align and place into correct position, especially considering the restricted space (and light) to work in. After studying the problem, I decided to use a piece of rope caulk (used for weatherstripping) with its sticky texture to hold the clip in correct alignment before pressing it into final position.