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HUAWEI Enjoy 20 can’t be turned on
Machine model: HUAWEI Enjoy 20
Fault phenomenon: HUAWEI Enjoy 20 can’t be turned on.
Maintenance process: After getting the phone, press the power-on button to start the test. It is found that the phone is unresponsive and cannot be turned on.
HUAWEI Enjoy 20 can’t be turned on Figure 1.
Take out the motherboard of the mobile phone, and connect the mainboard with the repair power supply. When it is powered on, it is found that the current is about 5A, indicating that there is a short circuit in the mainboard. Touch the mainboard with your hand and find that the signal part of the mainboard is a little hot.
HUAWEI Enjoy 20 can’t be turned on Figure 2.
Open the shielding cover of the signal part, smoke the rosin, and connect the power supply of the repair machine to burn the machine. It is found that the rosin on a capacitor has melted, indicating that there is something wrong with this capacitor.
HUAWEI Enjoy 20 can’t be turned on Figure 3.
Directly deduct the damaged capacitor and measure the motherboard again. The main power supply is no longer short-circuited.
HUAWEI Enjoy 20 can’t be turned on Figure 4.
When the motherboard is put back into the mobile phone, the mobile phone can boot normally and enter the system, and the fault is perfectly repaired.
HUAWEI Enjoy 20 can’t be turned on Figure 5.
HUAWEI Enjoy 20 can’t be turned on Figure 6.
