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Use this guide to replace the cellular antenna normally adhered to the speaker enclosure.
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Power off your iPhone before beginning disassembly.
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Your iPhone 4 rear cover may have either two #000 Phillips screws or Apple's 5-Point "Pentalobe" screws (second image). 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 2.5 mm Phillips screw securing the battery connector to the logic board.
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Use 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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Use the clear plastic pull tab to gently lift the battery out of 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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Before reconnecting the battery connector, be sure the contact clip (shown in red) is properly positioned next to the battery connector.
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Remove the following two screws:
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One 1.2 mm Phillips
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One 1.6 mm Phillips
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Remove the thin steel dock connector cable cover from the iPhone.
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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.
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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:
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One 1.9 mm Phillips screw
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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.
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Remove the speaker enclosure assembly.
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Remove the two Phillips screws securing the antenna to the speaker enclosure.
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Starting near the cellular antenna cable, use the edge of a plastic opening tool to peel the antenna off the speaker enclosure. Make sure you insert the plastic opening tool under the plastic the antenna is mounted on, not the metal plate.
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Continue peeling the cellular antenna off the speaker enclosure, being careful not to rip the gold bracket attached to one of its edges.
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Remove the cellular antenna.
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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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That's not a WIFI antenna. The part that you guys are showing is the Cell Phone Antenna.
Dose the way you put the screws back on have anything to do with nerwork connection failure?..
I resently replaced my screen and after the replacment my phobe was not connecting to the data network. So i am wondering if it might have anything to do with the screws?..
This is the GSM Antenna not the WIFI as indicated in the tutorial.
The WIFI and GPS antenna is at the top of the iPhone near the cameras.
FYI if anyone has weak wifi and GPS signal then a small metal tab has come off the EMI shield in the top most hole with the 5 screws, I had a problem with weak WIFI after changing the screen and the found that this was the cause, the little tab had come off the EMI shield when I had removed it.
Do you know where to buy the replacement emf shields? I know that a metal tab broke off of the shield but I didn't pay too much much attention to it. Now I suffer with horrible wifi signal.
My phone has the same issues with no signal. Did a replacement emf shield work?
Merc -
