Only the iPhone 4s has the black triangle piece. It sits on the left side of the loudspeaker assembly.
+
Only the iPhone 4s (and the iPhone 4 CDMA variant) has the black triangle piece. It sits on the left side of the loudspeaker assembly.
It it used to hold the left side of the loudspeaker in place via the left screw hole. Place the plastic triangle in first then the screw on top at the screw hole.
See this link for example: https://d3nevzfk7ii3be.cloudfront.net/igi/CaiGy4ZyfZigraUU.medium
Only the iPhone 4s has the black triangle piece. It sits on the left side of the loudspeaker assembly.
It it used to hold the left side of the loudspeaker in place via the left screw hole. Place the plastic triangle in first then the screw on top at the screw hole.
+
+
See this link for example: https://d3nevzfk7ii3be.cloudfront.net/igi/CaiGy4ZyfZigraUU.medium
Only the iPhone 4s has the black triangle piece. It sits on the left side of the loudspeaker assembly.
It it used to hold the left side of the loudspeaker in place via the left screw hole. Place the plastic triangle in first then the screw on top at the screw hole.