For what it's worth, on my 2011 MBP 17", the bluetooth/wireless unit was held down with two flat-head phillips screws; the one on the left, the 8.6 was attached to the metal clip just to the right of it in the picture. It came out very easily. The one on the right definitely had some kind of loctite adhesive, but eventually I got it free with firm, quick short twists. Didn't strip. Also, the torx screws on the superdrive were all phillips heads as well. Not sure if that's a 17" thing or what. Thanks!