The SoC on the motherboard has a special EDL mode
This is kinda like the SoC’s pre-bootloader, which loads the bootloader and can be used to flash a new bootloader
EDL mode is locked behind vendor specific certs/keys, so it’s unaccessible to the device owner
Blue cheese is intentionally inoculated with mold. Specifically penicillium mold that is perfectly safe to eat.
If a cheese “naturally” develops mold, there’s a good chance it could be harmful, so don’t eat that