Replace the antenna contact assembly in the top right of the rear case compatible with the iPhone 7 model #A1660, A1778, A1779, A1780. Fix Wi-Fi connectivity problems.
Replace the Wi-Fi Diversity Antenna and cable that is stuck to the loudspeaker in the lower right corner compatible with iPhone 7 model #A1660, A1778, A1779, A1780. Part #821-00513.