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Reference is USB-C-powered so VBUS==+5v was correct there; carrier +5v is driven by U_BUCK5, so a plugged-in host would parallel its VBUS with the buck output. Per frozen Pinout_BOM §5 the prog port is D±+CC only. VBUS pins (A4/A9/B4/B9) now NC; CC1/CC2 stay wired to CM5 (module implements the PD sink per SC1466 — supersedes spec's discrete 5.1k Rd). R9 (2.2k VBUS bleed) removed with its GND. ERC 133->133 identical types; analyzer -4, 0 regressions. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
