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Huawei Mate20 Pro Restart repeatedly repair
Machine model: Huawei Mate20Pro
Customer description: I fell, and my mobile phone can’t enter the system when it is turned on.
Test result: The mobile phone Restart repeatedly can’t enter the system.
Failure analysis: Because of the failure caused by falling, focus on checking whether the main chip of the mobile phone or VCC is damaged or Inveracious Soldering is damaged.
First remove the motherboard, check the appearance of the motherboard, and move Inductor and other components to see if Inveracious Soldering is obvious. After the inspection, no obvious fault point was found, and it was mainly suspected that the fault was caused by CPU Inveracious Soldering. After Inveracious Soldering CPU, the fault was repaired.
Huawei Mate20 Pro Restart repeatedly repair Figure 1.
Huawei Mate20 Pro Restart repeatedly repair Figure 2.
Huawei Mate20 Pro Restart repeatedly repair Figure 3.
