This time, more installed, the last line reads:
Installing Command Line Tools (macOS High Sierra version 10.13) for Xcode
It didn’t do anything after that, and when I entered “brew install fu-programmer” nothing happened.
EDIT:
wait more is happening now, installing home-brew
EDIT:
The update instructions say:
connect the USB A-A cable to your computer and the module. on the module, hold down the front panel button while powering up to launch the bootloader. the leds may be lit or not; don’t worry.
There are 3 buttons on the front panel, which is the one to hold down while powering up?
Thanks!