P20 Pro: Screen or Motherboard? Diagnosis and Solution!
0:00 Intro
01:07 Power-Z diagnosis
04:21 Motherboard inspection
06:03 Check the consumption in the type C connector
07:08 Check a new part
In this video, I show you how to diagnose a Huawei P20 Pro that comes from another store without a solution in less than 10 minutes. First he proceeds to disassemble the device and, removing all the connectors and the two coaxial cables, removes the motherboard from the chassis. It is important not to forget to remove the SIM tray.
✅ Power-Z
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It then connects the motherboard to the Power Z, an innovative and sophisticated tool for evaluating and monitoring the performance of electronic devices and power supplies. It is equipped with a high-resolution OLED display, and offers a manual sense and trigger function for greater control over testing processes. In addition, it has two USB-A input and output ports and two USB Type-C ports, as well as a micro USB port to connect to a computer.
I look at the current draw after pressing the snap button three times, and I conclude that it is a bit high. I then inspect the motherboard under a microscope for faults, noticing small bits of plastic and tin pellets. Finally, I connect the type-C cable to check the charging of the device. At the end of the video you will see the error...
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