Tag Laptop Repair Guide

Lenovo rescuer R7000 does not turn on the machine, and measures the resistance of the main power supply inductor before powering on. It is found that the resistance of 5V is only 40 ohms, which is obviously abnormal. The specific maintenance process is as follows:

Huawei notebook WFH9 does not charge. Fault model: Huawei notebook WFH9 Fault symptom: No charging. Maintenance process: I received a machine sent for repair by my peers, the model of which is Huawei notebook WFH9, and the fault is that…

MacBook Air M1 A2337 can’t be turned on by a single power supply. Fault model: MacBook Air M1 A2337 Fault symptom: single power supply can’t be turned on, and the touchpad can’t be used. Maintenance process: I received a machine…