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| Installing iPhone 4 Headphone Jack&Volume Control Cable |
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Step 1 — Rear Panel |
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| Step 2 Push the rear panel toward the top edge of the iPhone. The panel will move about 2 mm. |
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| Step 3 Remove the rear panel from the iPhone. |
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| Step 4 — Battery Remove the single 2.5 mm Phillips screw securing the battery connector to the logic board. |
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| Step 5 Use an iPod opening tool to carefully pry the battery connector up from the ends closest to the top and bottom edges of the iPhone. Do not pry against the pressure contact. Remove the pressure contact from the iPhone.   |
| Step 6 Use the clear plastic pull tab to gently lift the battery out of the iPhone. Be careful when removing the battery with the plastic pull tab. On some units, Apple uses an excessive amount of glue, making it virtually impossible to remove the battery in this fashion (with the tab possibly tearing due to excessive force). For batteries that "stick", you could use the iPod opening tool to assist (take extra care whilst doing so). Remove the battery. Before reconnecting the battery connector, be sure the pressure contact (shown in red) is properly positioned next to the battery connector. Before reassembly, be sure to clean all metal-to-metal contact points on the pressure contact as well as its contact point on the rear panel with a de-greaser such as windex. The oils on your fingers have the potential to cause wireless interference issues. |
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| Step 7 — Logic Board Use a SIM card eject tool or a paperclip to eject the SIM card and its holder. This may require a significant amount of force. Remove the SIM card and its holder. |
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| Step 8 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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| Step 9 Use an iPod 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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| Step 10 Carefully peel the dock ribbon cable off the logic board and the lower speaker enclosure. |
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| Step 11 Use an iPod opening tool to pry the lower antenna connector up off its socket on the logic board. |
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| Step 12 Remove the 1.9 mm Phillips screw securing the bottom of the logic board to the inner case. |
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| Step 13 Remove the following five screws securing the connector cover to to the logic board: One 2.3 mm Phillips Two 1.6 mm Phillips One 1.4 mm Phillips One 4.8 mm Phillips When re-assembling, start off with replacing the 4.8 mm Philips screw first, then the 2.3 mm. This is to ensure there is no mix-up, and avoid rendering the LCD and digitizer useless. |
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| Step 14 Use an iPod opening tool to slightly lift the top edge of the connector cover away from the logic board. Use the tip of a spudger to pull the connector cover retaining clips away from the inner frame. Remove the connector cover from the iPhone. Before reassembly, be sure to clean all metal-to-metal contact points on the connector cover with a de-greaser such as Windex. The oils on your fingers have the potential to cause wireless interference issues. Do not clean the connectors themselves with Windex. |
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| Step 15 Use an iPod opening tool to carefully lift the rear camera connector up off its socket on the logic board. Remove the rear camera. |
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| Step 16 Remove the small circular white sticker (warranty sticker and water indicator) covering the screw near the battery pull tab. Remove the 2.4 mm Phillips screw that was hidden underneath the sticker. |
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| Step 17 Disconnect the following connectors from the top of the logic board: Digitizer cable LCD cable Headphone jack/volume button cable Top Microphone/sleep button cable Front camera cable It is helpful to use the edge of an iPod opening tool to gently lift the connectors up and out of their sockets on the logic board. |
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| Step 18 Use a small flathead screwdriver to remove the 4.8 mm standoff near the headphone jack. |
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| Step 19 Carefully remove the logic board from the iPhone, minding any cables that may get caught. |
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| Step 20 — Headphone Jack & Volume Control Cable
Remove the following two screws securing the vibrator to the inner frame: |
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| Step 21 Use the edge of a plastic opening tool to peel the small strip of black tape off the back of the volume button bracket. Peel the tape starting from the side nearest the top of the phone. Carefully remove the remaining portion of tape off the small section of ribbon cable near the inside of the bottom volume button. |
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| Step 22 Remove the five Phillips screws securing the silent and volume button brackets to the outer case. |
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| Step 23 Use a pair of tweezers to carefully pull the silent switch and its bracket from the side of the outer case. Don't try to completely remove the silent switch just yet. |
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| Step 24 Grab the headphone jack with a pair of tweezers and remove the assembly from the iPhone, being careful not to rip the thin ribbon cables. |
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| Step 25 If you are not replacing the headphone jack assembly with a new unit, skip this step. Use the edge of a plastic opening tool to peel the electronic portion of the silent switch off its metal bracket. Transfer the bracket to the new silent switch. Repeat this procedure to peel the metal volume button bracket off the electronic portion of the volume buttons. Transfer the volume button bracket to the new volume buttons. |
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