Chosen Solution
When replacing the cracked screen on my Iphone 5 the small non-magnetic screw dropped down into the small cavity just below it . I continued the repair and when I returned to retrieve it was gone ? It is not in my work area could it get into/under the logic board ?
It’s possible that it wedged it’s way under the logic board. The bottom side of the logic board has a complete and physical shield so there shouldn’t be any danger of contacting the electronics. However, over time the screw may get jostled out of position and go somewhere else. I would remove the logic board and try to find it or at least assure myself that it is no longer there.
