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HUAWEI Mate 20 screen appears ghosting.
Machine model: HUAWEI Mate 20
Malfunction: HUAWEI Mate 20 has been in the water, changed the screen, and now the screen of the mobile phone is ghosted.
Maintenance process: After getting the phone, turn it on, slide it, and find a double image on the screen.
HUAWEI Mate 20 screen appears ghosting Figure 1.
Disassemble and take out the motherboard, and find that the display seat is missing, which should have been dropped when changing the screen before.
HUAWEI Mate 20 screen appears ghosting Figure 2.
Looking at the bitmap, it is found that the inductor and a pull-up resistor are dropped.
HUAWEI Mate 20 screen appears ghosting Figure 3.
So short-circuit the inductor, make up the 1K pull-up resistor and coat it with green oil. Reinstall the motherboard to the phone and fix the fault.
HUAWEI Mate 20 screen appears ghosting Figure 4.
