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Use this guide to replace the dock connector assembly, which includes the dock connector and lower microphone.
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Power off your iPhone before beginning disassembly.
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Remove the two 3.6 mm Pentalobe P2 screws next to the dock connector.
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Push the rear panel toward the top edge of the iPhone.
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Pull the rear panel away from the back of the iPhone, being careful not to damage the plastic clips attached to the rear panel.
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Remove the rear panel from the iPhone.
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Remove the following screws securing the battery connector to the logic board:
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One 1.7 mm Phillips screw
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One 1.5 mm Phillips screw
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Carefully push the pressure contact away from the battery connector until it slides free from its position.
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Remove the pressure contact.
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Use a plastic opening tool to gently pry up the battery connector from its socket on the logic board.
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Place the tip of the tool between the loudspeaker enclosure and the metal cover of the connector, and lift the bottom edge of the connector first.
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Insert the edge of a plastic opening tool between the battery and the outer case near the bottom of the iPhone.
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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.
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Wait about one minute for the alcohol solution to weaken the adhesive.
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Use the flat end of a plastic opening tool to gently lift the battery.
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Use the exposed clear plastic pull tab to peel the battery off the adhesive securing it to the iPhone.
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Remove the battery.
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Remove the following screws securing the dock connector cable cover to the logic board:
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One 1.5 mm Phillips screw
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One 1.2 mm Phillips screw
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Remove the metal dock connector cable cover.
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Use the edge of a plastic opening tool to pry the dock cable up from its socket on the logic board.
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Peel the dock connector cable off the adhesive securing it to the logic board and the side of the speaker enclosure.
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Use the edge of a plastic opening tool to pry the cellular antenna cable up from its socket on the logic board.
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De-route the cellular antenna cable out from under the metal fingers attached to the logic board.
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Remove the two 2.4 mm Phillips screws securing the speaker enclosure assembly to the outer case.
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Remove the small black spacer that was under the Phillips screw near the vibrator.
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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.
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Remove the speaker enclosure assembly.
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If present, remove the small strip of tape covering one of the dock connector screws.
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Use a plastic opening tool to flip up the retaining flap on the home button ribbon cable ZIF socket.
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crwdns2935267:0crwdne2935267:0Tweezers$4.99
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Use a pair of tweezers to pull the home button ribbon cable out of its socket.
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Carefully pull the rubber microphone holder out of its tube in the bottom edge of the iPhone.
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Remove the two 1.3 mm Phillips screws securing the dock connector to the case of the iPhone.
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Remove the tiny rubber spacer near the dock connector.
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Use the edge of a plastic opening tool to peel the dock connector and its cable off the black plastic case of the iPhone.
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Pry the dock connector away from its opening at the bottom of the iPhone.
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Remove the dock connector.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
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After re-assembling the phone I get searching or very low signal, and the signal that i get is not 3G.
Does anyone have any suggestions?
I have cleaned the connectors and made sure that all connections were tight.
THe #00 screw driver does not work for all screws in the 4S so a smaller one is needed. Wasted my money on that one.
When I had changed the dock connector, my iPhone was not able to get a carrier signal. I found an helpful answer in the forum which worked perfectly for me. Make sure you set the correct date and time (after you remove the battery, it will most probably show you 1970) remove the sim card and plug it in again. That worked for me.
I bought the pro tech toolkit and liberation kit and set my work area to the longest one hour of my life. Everything inside the 4s is so tiny and fragile, I was in constant fear of breaking something, but the teardown videos and the comments on this page really help me to get through the entire process.
Thank you everybody and let us continue tinkering our way through all the adversities in this life! Peace!
This guide was perfect! Very detailed and explained everything very well. Only thing I found confusing was step 17, but besides that it went perfectly smooth!
