Download the firmware:
We need the dfu-utils:
wajig install dfu-util
On the board itself, connect B0 and 3.3V with a paperclip or other conductive item and press the refresh button to enter bootloader whilst USB connected. Then install the firmware.
dfu-util -a 0 -D ADAFRUIT_F405_EXPRESS-20220618-v1.19.1.dfu
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