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Huawei mate 8 Won’t Turn On repair
Machine model: Huawei mate 8
Customer Description: mobile phone Won’t Turn On
Test results: mobile phone Won’t Turn On,DC power supply directly short-circuit current large current.
Fault analysis:DC power supply is directly short-circuit current large current, indicating that Short circuit is the cause of the problem.Focus on checking the battery input circuit.
Maintenance process:
First, open Xinzhizao Soft, find the label of Huawei mate 8, and find the BTB connector battery.
Huawei mate 8 Won’t Turn On repair Figure 1.
Open Boardview of Huawei mate 8, find the battery BTB connector, and measure the relevant circuit according to the guidance of Boardview.First, measure the pin bits of BTB connector.
Huawei mate 8 Won’t Turn On repair Figure 2.
After measurement, it was found that Short circuit bit of pin at battery input terminal was broken after careful inspection.
After replacing Capacitor, the fault was repaired.
Huawei mate 8 Won’t Turn On repair Figure 3.
