PQ6204 is the high side MOSFET, if it's shorted S-G hopefully the RT6585 detected the fault, that's why the 3.3V and 5V supplies don't work
You can remove PQ6204 and measure it outside the board to confirm, set the hot air to 450-460 C
With the MOSFET removed measure again S-G pads on the board, resistance should be higher
If the MOSFET is shorted S-G outside the board, it's definitely faulty
Always measure resistance without power applied, don't connect the battery/charger until...
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