The cable between the plastic bottom cover and the motherboard can be separated by pushing the “ears” of the white plastic fitting away from the black plastic connector, parallel to the motherboard, not straight up.
Simple thumb-pushing didn’t work for me, so I bought the tool.
Insert the MMLBRtool. How far? There’s an initial lip you might catch about halfway down, but wiggle beyond the lip to a definite bottoming out, and equal lengths of the tool on each side of the elbows as shown.
As you lever the logic board per the illustrations, you’ll notice the black bezel begin to separate on one side or the other. Use a prying tool or guitar pick to help separate the bezel from the body on top and bottom, and the logic board will slide out easily with gentle prying.
On my Mini, the bezel’s retaining clips (best seen in Step 25) were very snug to the body, preventing the thumb-push. Using the pick released them from the body.
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