This pentalobe looks weirdly unfinished. The bottom screws are more like pins if we're honest.

This screw moves the threaded section from the display to the steel frame, and extends the unthreaded section into a freakishly long pin.

Our best guess is that this allows the display a bit of flexibility, while also allowing it to move its mounting bracket toward the interior of the phone, incidentally making room for a beefed-up Lightning connector.

Luckily, it looks like they haven't rearranged too much else, as our typical trifecta of iOpener, iSclack, and iFixit Opening Picks works as in the past.

That means no significant change in resistance, and the OLED is well supported by a frame, unlike some displays we know.