We can see that there is an inductor FL5893 on the circuit. Let's start with FL5893.

First, remove sponge around J5800 with tweezers. Run diode mode measurement of Pin 1 and Pin 2 of FL5893. The measured value of the two pins is 0. Judging by the measured value, FL5893 is in normal status.

We can see that the circuit makes its way to the third space PCB. So we need to separate the motherboard to check the third space PCB. Place the motherboard on the specialized Heating Platform. With temperature of the platform reaching 160℃, pick up the upper layer with tweezers.