From @XucroYuri's report in #1178. One session, no package list. The main finding is that network ADB stays open and unauthenticated, which matters before anyone starts the procedure on this projector ...
The classic pins are the VSPI (SPI3) IOMUX set; the S3 pins are the FSPI (SPI2) IOMUX set (GPIO9–14, chosen to avoid the S3's internal flash/PSRAM pins GPIO26–37 and all strapping/USB/UART pins). Pins ...