iPhone 4 Speaker Enclosure Assembly Replacement

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• Remove the following two screws:
• One 1.2 mm Phillips
• One 1.6 mm Phillips
• Remove the thin steel dock connector cable cover from the iPhone.
• Before reassembly, be sure to clean all metal-to-metal contact points on the dock connector cable cover with a de-greaser such as windex. The oils on your fingers have the potential to cause wireless interference issues.
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• Use a plastic opening tool to gently pry the dock cable connector up off the logic board from both short ends of the connector.
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• Carefully peel the dock ribbon cable off the logic board and the lower speaker enclosure.
• Do not use excessive force to peel the dock ribbon cable off the logic board. Doing so may tear the cable.
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• Use a plastic opening tool to pry the lower antenna connector up off its socket on the logic board.
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• Remove the following screws securing the speaker enclosure assembly to the outer case:
• One 1.9 mm Phillips screw
• One 2.4 mm Phillips screw
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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.
• 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.
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Walter Galan

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