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iPhone 4 Logic Board Replacement

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iPhone 4 Logic Board Replacement: crwdns2935265:00crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

  • Remove the following five screws securing the Wi-Fi antenna 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.

  • Also make sure to put the long 4.8 mm Philips back in correctly when reassembling. This is the ground for the Wi-Fi antenna and is often the culprit if you are having bad Wi-Fi reception after reassembly.

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