Chrono's native home: one of the three apps this pack's own firmware ships, built with no --app override.
This artifact is the full puck firmware for this board, not a chrono-only build: chrono is simply the app it boots into.
No install needed: copy the downloaded file onto the RP2350 BOOTSEL drive once it appears.
Only needed for a bricked board, or for firmware older than the USB reset interface. Otherwise the flasher reboots the board into BOOTSEL itself.
Unplug USB. Hold PWR for at least 12 seconds, until the screen goes black (replugging alone does not reset the board: the PMIC keeps the rails up). Then hold BOOT while plugging the USB cable back in.
The board can answer for itself. This replays this port's own recorded trace over the board's devlink port and compares every captured frame against the frames the verifier uses, pixel for pixel.
no board has confirmed this yet
Needs the board running this firmware, and Chrome or Edge on desktop. Nothing about you is sent: the result carries the app, the pack, the firmware's own sha256, the kind of check, the verdict and what each check measured.