Camera not focusing properly? No longer responding at all? Fix it!
Fix your broken button!
Fix your bad sensor cable!
Fix that broken vibrator!
Fix the counter-repair design of your iPhone.
Fix a scratched or worn rear case.
Replace that damaged shield plate!
Bad speakerphone? No speakerphone audio? This may be the part you need!
Antenna responsible for picking up nearby Wi-Fi signals.
Simplify testing that Display Assembly!