はじめに
A common problem in the iPhone 4S, sometimes the Wi-Fi button will be grayed out and unclickable. This problem seems to be related to thermal shock — the problem may be temporarily fixed by simply putting the phone in the refrigerator for 15 minutes, or under a lamp for 30 minutes.
If this is the case, then the necessary permanent solution is to reflow the Murata SW SS1830010 Wi-Fi chip on the logic board.
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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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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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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 a SIM eject tool or a paperclip to eject the SIM and its tray.
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Remove the SIM and its tray.
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Remove the five cables near the top of the logic board in the following order:
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Headphone jack/volume button cable
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Front facing camera cable
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Digitizer cable
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Display data cable
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Power button cable (located underneath the headphone jack/volume button cable as shown in the second picture.)
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Remove the 4.8 mm standoff screw near the headphone jack.
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Remove the adhesive protection on the Wi-Fi/bluetooth chip.
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Now we can see the Murata SS1830010 chip.
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Edit: the correct temperature is almost 180-200 °C because around the chip there is a little black protection that can go under the chip.
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Set a low air flow: 1 or 2 (on a 1 to 7 scale).
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Now, doing circular movement, you have to reflow for 4-5 minutes.
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After 5 minutes, gradually decrease the temperature from 200 to 0 °C.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
187 の人々がこのガイドを完成させました。
120 件のコメント
Mille grazie, Andrea! I completed the repair thanks to your awesome Guide. Could it be you forgot to describe disassembly of the camera + surroundings? I took it out, too.
However, thank you,
Alex
Feel free to describe...
floresc -
you dont need to take out the surrounding and the vibrator, you have just to take out the motherboard, so u dont need to do that..
the camera yes, you have to pull out. im sorry
reply to @Alex Holzhey
Thank you! i'm happy to hear this. and i'm glad to know that my guide is useful. anyway i have done a "copy and paste" for the first 20 steps, so i dont care about if something is the guide is missing..i think that if someone wanna try this guide, he have to know a little how to disassemble his phone. :)
Thanks again