I'm wondering if asymmetric charging behavior (does it differently depending on which orientation is used on the cable connector) is a feasible failure mode with USB C, which is supposed to be an asymmetric port.
What got me wondering is the behavior I'm getting from a recently replaced USB C charging port. Every cable I've tried now gives me a "charging slowly" dialog from only one of the two orientations.
I just assumed this was due to one of the pins being messed up on the new port. The techs were totally flummoxed by this though, and I had to demonstrate it to them on their own equipment. They went ahead an ordered a new part for me, but insisted this shouldn't be possible.
Are they right about how weird this is? I think my bent pin theory holds, since it looks like there are copies of each kind of power-related pin (2 VBUS and 2 GND on each side). However, I don't know exactly how those pins are typically used. If both sides are used to deliver power simultaneously, then it seems like the power input ought to be additive, and the techs are right that this shouldn't be happening. If they are instead merely redundant, and only one set is used depending on the orientation of the cable's plug, then what I'm seeing would make sense.