iPhone X wifi cannot be repair

iPhone X wifi cannot be repair

Machine model: iPhone X
Malfunction: wifi can’t be used
Test results: The mobile phone can be turned on normally, all functions are normal, wifi can’t be used, and the address of WiFi chip can’t be read.
Fault analysis: According to the fault performance, the WiFi chip is not working at present, and the maintenance focus is on the insufficient working conditions of the WiFi chip.

iPhone X wifi cannot be repair Figure 1.

First, open the Xinzhizao Soft software, find the component labeling diagram of iPhone X, and find the WiFi chip.

iPhone X wifi cannot be repair Figure 2.

When it is found that the WiFi chip is on the lower motherboard, the motherboard should be separated first. After the motherboard is separated, open schematic of iPhone X, find the circuit schematic of the WiFi chip, and measure each path of the WiFi chip according to the drawing data combined with schematic.

iPhone X wifi cannot be repair Figure 3.

iPhone X wifi cannot be repair Figure 4.

iPhone X wifi cannot be repair Figure 5.

After measurement, it was found that the WiFi EN line from the power chip to the WiFi chip had been disconnected, but only the middle frame to the chip was partially disconnected, and Jump wire was repaired later.