Main Repair Questions Hp specter x360 no charge or turn on

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      This one has me puzzled, getting 20v 0 amp on one USB but 5v 0 amp on other, won’t charge or turn on power light just blinks when you hit the power button,

      No shorts around USB controller chips or power ic, but I do get a few caps short to ground near the graphics chip, (not sure if these are low resistance though as I can’t find a schematic for this board,)

      Weird thing is if I heat the board in this area ( around graphics chip and the large resistor above it) while the board is hot I get 20v on both USB ports and a solid power light, soon as it cools down it goes back into 20v 1 port 5v other port and it power cycles,

      Ant advice please?

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