史上最惨Switch捡漏翻车Type-c尾插损坏焊盘损坏usb电源芯片损坏cpu usb引脚无阻值故障维修

I have repaired a few switches in a row before, and I bought a broken switch for 11,000 yen. I thought it was a switch that could kill in seconds, but I didn't expect it to be faulty. From the tail plug to the tail plug pad to the usb chip and finally the cpu is found, they are all faulty. . . The usb pin of cpu has no resistance. Have you ever encountered it? Repair consultation: [email protected]