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Huawei Mate 30 Pro can’t connect to WiFi repair
WiFi chip has been repaired at home. The power supply of the WiFi chip is normal when it is turned on, so the iron case of the crystal oscillator is directly found. After disassembling it, the crystal oscillator is taken down to measure the ground value of the crystal oscillator, and it is found that the two ground wires of the crystal oscillator are dropped. Find a good 38.4MHz crystal oscillator and put the motherboard back inside the phone.
