alt Hacker News> You don't present any alternative theory for the behavior, just assert that I'm wrong.
Not the GP, but it is easy to refute your theory. Just do a DFU with the port indicated by Apple and it works per Apple instructions. I have personally tested this and can attest it works as intended.
I don't think one logically needs to be burdened to come up with an alternative theory for why your macOS update process to be able to conclusively refute your implication of Apple docs about which port is DFU being wrong.
> it is easy to refute your theory. Just do a DFU with the port indicated by Apple
No, it's not easy. I just said, in the comment you replied to, "I'm not even sure that I have all the prerequisites on hand."
> I have personally tested this
On my Mac model?
To be clear, I'm saying that the doc is wrong about my specific, relatively new Mac model, which I bought a year ago. I'm not claiming that the doc is wrong about other, older Mac models.