

It’s difficult on the back end of the charger as well.
A shopping centre or rest stop can’t just spring for a few high capacity chargers for the car park. A single megawatt charger is 50 houses worth of consumption, so they now need a substation upgrade to provide what is basically a whole neighbourhood-equivalent of power.
If it seems stupid, that just means that it was cheaper to do it this way.
Program ROM/EEPROM + RAM, or just RAM connected to a USB interface with a reset line tied to the camera processor? See the USB device ID connect , fill the ram with the camera software, toggle processor reset , off you go.