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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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Your phone's rear cover may have two #000 Phillips screws or Apple's 5-Point "Pentalobe" screws. Check which screws you have, and ensure you also have the correct screwdriver in order to remove them.
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Remove the two 3.6 mm Pentalobe or Phillips #000 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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Pinch the rear panel with your fingers, and lift it away from the iPhone. Alternatively, use a Small Suction Cup .
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Remove the single 1.5 mm Phillips screw securing the battery connector to the logic board (if present).
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Use the edge of a plastic opening tool to gently pry the battery connector up from its socket on the logic board.
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Remove the metal clip covering the antenna connector.
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Pull up on the exposed clear plastic tab to peel the battery off the adhesive securing it to the iPhone.
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If there's any alcohol solution remaining in the phone, carefully wipe it off or allow it to air dry before installing your new battery.
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Remove the battery.
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Before reassembly, clean metal-to-metal contact points with a de-greaser such as windex. The oils from your fingers have the potential to cause wireless interference issues.
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Perform a hard reset after reassembly. This can prevent several issues and simplify troubleshooting.
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Remove the two 1.8 mm Phillips screws securing the dock connector cable cover to the logic board.
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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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Remove the 1.6 mm Phillips screw securing the pressure contact to the logic board near the vibrator.
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Remove the pressure contact.
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Use the edge of a plastic opening tool to pry the Wi-Fi antenna cable up from its socket on the logic board.
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De-route the Wi-Fi 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, but do not remove, 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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Use a pair of tweezers to remove the small rubber spacer beneath the speaker enclosure mounting ear near the vibrator.
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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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So I attempted once to fix the dock connector and failed. A month later I took the phone apart again. The first thing I noticed when taking off the dock connector from the logic board is that it wasn't seated properly. I attached it properly and now the iPhone charges and home button works perfectly!
What about it was not seated properly? any specific contact point? was it not screwed in well if it wasn't seated properly? I just replaced on a friends 4, but it has not turned on yet, and I can't figure it out. It just stopped charging one day so I figured it was a bad port from corrosion or something and replaced it. The swap was easy enough so I'm confused as to why it isn't turning on yet.
Matthew -
Great instructions. Easy to follow. I found that a JIS000 bit worked better than a phillips #00 bit on my Verizon iPhone 4, model A1349.
New part from IFixit works great. Some tips from my installation:
- PH000 screwdriver works well, but takes some finesse. A little pressure to get the screw going, and don't try to over tighten on the way back in. If you happen to round one out, a 00 or 0 PH screwdriver might get enough bite to get it going.
- Plastic pieces are covering the adhesive on numerous parts of the new dock connector. These are to be removed prior to installation.
- Battery does not have to be removed, so I avoided the risk of breaking something else.
I completed this guide, but unfortunately my phone is in no better shape than it was before the dock replacement. Apparently, this was not the problem. The device won't restore in iTunes. It just sits with the Apple logo and an empty status bar on the screen. Now when I unplug it from the computer, I get a black screen, with just a touch of backlight, but no display otherwise. Before the dock replacement, it always said "Connect to iTunes" but would not restore either. Any thoughts on what else I could try now?
