- The AW35615 USB-C controller (FUSB302-style registers, ID 0x91) only
reports VBUSOK with its measure block on; POWER resets to bandgap only,
so isExternalPowered() was always false. Board init turns it on
- Status bar shows a charge bolt on the cable, Diagnostics > Live has a
Power row, the GPS screen notes that charging disturbs GPS, and the
low-battery warning is skipped on USB as intended
- Roadmap: USB detection closed; GPS indoors still worse than the L1
even on battery, left open for later
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>