Introduction
Due to Apple's part pairing system, Wi-Fi repairs on iPhone 12 or later models were impossible for independent repair shops for years. But now, REWA Tech has found a groundbreaking solution. This is the first time we've made such a huge breakthrough in iPhone repairs since the iPhone 12 release. This guide will show you how to perform a Wi-Fi chip repair on an iPhone 13. This method can be applied to iPhone 12 and later models, however.
What you need
Video Overview
iPhone WiFi Chip Repair Solution
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Cover the cameras with protection stickers.
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Remove the motherboard and split it.
Ask FixBot
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Test the circuits related to the Wi-Fi module to verify that they are normal.
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Heat the NAND chip evenly with a hot air gun at 420°C and airflow 80.
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Pry the NAND chip up.
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Apply some flux to the soldering pad of the NAND chip.
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Remove the tins from the soldering pad using braid and a soldering iron.
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Place the NAND chip in a Luban programmer.
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Connect the programmer to a PC and open the programming software.
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Click "Check Factory Data" to read the EcID of the iPhone.
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Read the EcID from the NAND chip.
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Place a new Wi-Fi module into the Luban programmer to write in the Wi-Fi SN.
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Copy the EcID and select WiFi Operations on the navigation menu.
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Paste the EcID and click "Check now."
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Then click "Write now."
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The Wi-Fi SN has been written into the new Wi-Fi module.
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Place the signal board onto a fixture.
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Cover some other components with Kapton tape for protection.
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Heat the Wi-Fi module with a hot air gun and use a pry knife to remove the edge adhesives.
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Pry up the Wi-Fi module.
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Apply some flux to the soldering pad of the Wi-Fi module.
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Remove the tins from the soldering joints of the signal board.
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Remove the tins from the soldering joints of the logic board.
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Align the new Wi-Fi module carrying the SN to the soldering pad.
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Solder the new Wi-Fi module with a hot air gun at 380°C and airflow 60.
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Solder the NAND chip with a hot air gun at 380°C and airflow 60.
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Connect the iPhone 13 screen cable and the power cable.
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Use a pair of tweezers to trigger the power-on.
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The iPhone 13 should power on properly.
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Go to settings to check if the Wi-Fi function toggle is resumed.
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Solder the signal board with the logic board.
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Assemble the iPhone 13 and test the Wi-Fi function.
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Test and Wi-Fi should be restored and connected properly.
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