[zachm0]

How does one “simply replace the firmware” is a way that isn’t trivial to spot by an observer?

Assuming there is no external IO such as USB or Ethernet, someone would have to disassemble the machine and solder a programming header in order to re-flash the device.

[codedokode]

Replace the firwmare (or even the whole motherboard) long before election day when there are no observers yet.

> to disassemble the machine

Is it that difficult?