How to fix WIFI cannot be turned on and no WIFI address on iPhone 6

Have you ever met your mobile data runs out, but at this time, you found a WIFI available and like find a life-saving straw, you are so excited to turn on your WIFI, but is no response and can't find WIFI address. In this time, your mood will be covered by dark clouds. Just relax, Vipprog can help you to solve this problem.

Firstly, disassemble the iPhone then you can found the Wi-Fi chip has been changed. First remove the Wi-Fi chip and then use multimeter to measure the diode data on the bonding pad, we can find the pin 26 and pin 28 on the Wi-Fi chip bonding pad are line-to-ground short circuit. After checking the circuit diagram, we can know the self-output electricity of Wi-Fi chip powers the two pins. As shown in picture 1-1, it is abnormal to power a line-to-ground short circuit.

                                                                 1-1

Next,By looking at picture 1-2, we know pin 26 and pin 28 only connect a capacitance C5201_RF and a inductance L5201_RF, so the only short circuit is C5201_RF. You can find the C5201_RF location by checking the PCB circuit diagram. as shown in picture 1-3.  As shown in picture 1-11, we can find the C5201_RF material object location in the PCB image.

                                                                       1-2

 

1-3

Finally, remove the capacitance and then measure the iPhone diode. The line-to-ground short circuit disappears. Weld a capacitance removed from the same place of the stripper and energize Wi-Fi chip after reassembling. Turn iPhone on and enter system to test. Wi-Fi can be turned on normally and trouble is removed. you can normally use WIFI and your mood will be like rain after the rainbow.