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Huawei Mate30 Pro mobile phone WiFi can’t be repaired.
It was found that two capacitors had been replaced. These two capacitors must be 220 nanofarads, and the difference between them should not be too great. Two 220 nanofarads were decisively replaced, and the fault was eliminated, and the signal was instantly full.
Machine model: Huawei Mate30 Pro
Malfunction: Mobile phone WiFi can’t be opened.
Maintenance process:
Received a Huawei Mate30 Pro, but the mobile phone WiFi can’t be opened. This machine is a second repair machine. All working conditions of measured WiFi are normal. Careful observation under the microscope shows that two capacitors have been replaced.
Huawei Mate30 Pro mobile phone WiFi can’t be opened for maintenance Figure 1
The two capacitors must be 220 nanofarads, and the difference between the top and the bottom should not be too great. Two 220 nanofarads were decisively replaced, and the fault was eliminated, and the signal was instantly full.
Huawei Mate30 Pro mobile phone WiFi can’t be opened for maintenance Figure 2
Huawei Mate30 Pro mobile phone WiFi can’t be opened for maintenance Figure 3
