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3 USB Ports show 5V and 0 Amp Draw and 1 Port USB C the amp meter will not turn on.
Client used all 4 ports simultaneously for multiple peripherals always.
Machine turns on and charges from the other 3 ports.
Check diode mode on other lines of CD3215.
If you salso get strange readings, then bad chip.
If not, may be a protection diode, or capacitor; connected to CC1 line.
But CC2 is also low, so very likely bad CD3215...
Replaced its still the same. Other Ports are now 20V and drawing amps but this corresponding port the amp meter will not turn on.
CC1 and CC2 for this port is still low.