iPhone 6s Lightning Connector Assembly
Wish I had read this comment earlier. Had a bear of a time reconnecting this antenna cable.
Reassembly: A lot of adhesive held this cable down. Had difficulty getting this ribbon cable reconnected to the socket; it kept popping back up. I think the antenna cable was not exactly where it needed to be, and I had to mess with logic board a bit to make sure the antenna cable was wedged down where it needed to be.
My spudgers just too thick for initial insertion. In the end, fingernail on my thumb got me started, and I was able to get plastic picks in there to work it. The microwavable iOpener gel strip really helped.