DIY practical smartphone wireless charger repair and modification

Symptom: Power does not turn on.
Even if you check the power first, you cannot confirm that the power is turned on.
Inspection order
1. Connector circuit and power circuit tracing
2. Check whether power is supplied to the IC power terminal by referring to the IC datasheet.
3. Trace the bypass capacitor connection point of the IC pin.
4. After repairing the smartphone wireless charger, separate it into two systems.
5. An old smartphone charger is additionally installed on the LED lamp.