The iPhone 6 WiFI is grayed out, when we press the WIFI button, it
has no response, the result is that the iPhone 6 can't connect to WIFI.
If you have enough cellular data, then maybe you can live without WIFI,
but if not, then i believe that you must urgently need to repair it. Try
to fix by using the following solution.
Put iPhone on the WL Aluminum Alloy Pad, then disassemble the iPhone 6, connect it to DC power supply, we found that the current jumps normally, and there is no case of large current.
Put iPhone motherboard under the microscope, and then carefully use tweezers to remove the iPhone WIFI module IC. Using Fluke 15B+ Digital Multimeter to measure the resistance of solder pad first, after measurement, we fount the 13 pin of the solder pad was measured infinite, but as we know, the normal resistance is about 400V.
The R0711 resistance exists after measurement, weld the jump wire from R0711 to the 13th pin of WIFI, and then install the iPhone WIFI module IC, but it still not working after tested.
Remove the IC again, continue to meause the continue to measure the value of solder pad, it is found that the 36 pin of the solder pad is able to be measured with force.
After check iPhone bitmap, we found there is a test poing in the middle of the 32K clock to iPhone 6 CPU. We choose to weld jumper wire directly from the test point.
After finish the above step, assemble the chip and test it, now the iPhone WIFI button has response when touch it, and the it can connect to WIFI, after a use for a while, the WIFI signal tested normal.
One more tips, we can check iPhone schematic diagram or iPhone bitmap on WUXINJI Dongle.
Put iPhone on the WL Aluminum Alloy Pad, then disassemble the iPhone 6, connect it to DC power supply, we found that the current jumps normally, and there is no case of large current.
Put iPhone motherboard under the microscope, and then carefully use tweezers to remove the iPhone WIFI module IC. Using Fluke 15B+ Digital Multimeter to measure the resistance of solder pad first, after measurement, we fount the 13 pin of the solder pad was measured infinite, but as we know, the normal resistance is about 400V.
The R0711 resistance exists after measurement, weld the jump wire from R0711 to the 13th pin of WIFI, and then install the iPhone WIFI module IC, but it still not working after tested.
Remove the IC again, continue to meause the continue to measure the value of solder pad, it is found that the 36 pin of the solder pad is able to be measured with force.
After check iPhone bitmap, we found there is a test poing in the middle of the 32K clock to iPhone 6 CPU. We choose to weld jumper wire directly from the test point.
After finish the above step, assemble the chip and test it, now the iPhone WIFI button has response when touch it, and the it can connect to WIFI, after a use for a while, the WIFI signal tested normal.
One more tips, we can check iPhone schematic diagram or iPhone bitmap on WUXINJI Dongle.
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