Replace a broken dock connector in your iPhone 4S. Use this guide to replace the dock connector assembly, which includes the dock connector and lower microphone. Sections: Tools:
Installing iPhone 4S Dock Connector
Author: Eric Chen; Difficulty: Moderate
Rear Panel 3 steps
Battery 5 steps
Speaker Enclosure Assembly 7 steps
Dock Connector 8 steps
Phillips #00 Screwdriver
Plastic Opening Tools
iPhone 4 5-Point Pentalobe Screwdriver
Step 1 — Rear Panel
Before disassembling your iPhone, be sure it is powered off.
Remove the two 3.6 mm Pentalobe screws next to the dock connector.
During reassembly, we recommend you replace the 5-point screws with equivalent Phillips screws. Our Liberation Kit provides the tools and screws needed to replace the Pentalobe screws with Phillips screws.
The 5-Point Screwdriver should only be used once, as it has the potential to strip the screws.
Push the rear panel toward the top edge of the iPhone.
The panel will move about 2 mm.
Pull the rear panel away from the back of the iPhone, being careful not to damage the plastic clips attached to the rear panel.
Remove the rear panel from the iPhone.
Step 4 — Battery
Remove the following screws securing the battery connector to the logic board:
One 1.7 mm Phillips screw
One 1.5 mm Phillips screw
Use a pair of tweezers to remove the the pressure contact near the battery connector.
When reinstalling the pressure contact, be sure to clean it with a degreaser such as windex or isopropyl alcohol. The oils on your fingers have the potential to create wireless interference.
Use the edge of a plastic opening tool to gently pry the battery connector up from its socket on the logic board.
Insert the edge of a plastic opening tool between the battery and the outer case near the bottom left corner of the iPhone.
Run the plastic opening tool along the right edge of the battery and pry up at several points to completely separate it from the adhesive securing it to the outer case.
Use the exposed clear plastic pull tab to peel the battery off the adhesive securing it to the iPhone.
Remove the battery.
Step 9 — Speaker Enclosure Assembly
Remove the following screws securing the dock connector cable cover to the logic board:
One 1.5 mm Phillips screw
One 1.2 mm Phillips screw
Remove the metal dock connector cable cover.
Use the edge of a plastic opening tool to pry the dock cable up from its socket on the logic board.
Peel the dock connector cable off the adhesive securing it to the logic board and the side of the speaker enclosure.
Use the edge of a plastic opening tool to pry the Wi-Fi antenna cable up from its socket on the logic board.
De-route the Wi-Fi antenna cable out from under the metal fingers attached to the logic board.
Remove the two 2.4 mm Phillips screws securing the speaker enclosure assembly to the outer case.
Remove the small black spacer that was under the Phillips screw near the vibrator.
Use a plastic opening tool to lift the speaker enclosure assembly out of the case, being sure not to damage the EMI fingers on the attached Wi-Fi antenna.
Remove the speaker enclosure assembly.
Before reinstalling the speaker enclosure assembly's screws, be sure the Wi-Fi grounding fingers are installed below the lip in the iPhone's metal case as seen in the third picture.
Before reassembly, be sure to clean all metal-to-metal contact points between the grounding fingers of the Wi-Fi antenna and the case of the iPhone with a de-greaser such as windex or isopropyl alcohol. The oils on your fingers have the potential to cause wireless interference issues.
Step 16 — Dock Connector
If present, remove the small strip of tape covering one of the dock connector screws.
Use a plastic opening tool to flip up the retaining flap on the home button ribbon cable ZIF socket.
Be sure you are prying up on the hinged retaining flap, not the socket itself.
Use a pair of tweezers to pull the home button ribbon cable out of its socket.
Carefully pull the rubber microphone holder out of its tube in the bottom edge of the iPhone.
Remove the two 1.3 mm Phillips screws securing the dock connector to the case of the iPhone.
Remove the tiny rubber spacer near the dock connector.
Use the edge of a plastic opening tool to peel the dock connector and its cable off the black plastic case of the iPhone.
If you are replacing the dock connector with a new part, make sure to transfer the rubber casing around the microphone. You can do this using a spudger.
Pry the dock connector away from its opening at the bottom of the iPhone.
Remove the dock connector.
Replace a broken dock connector in your iPhone 4S.
Use this guide to replace the dock connector assembly, which includes the dock connector and lower microphone.