Difficult to let my Electron device blinking BLUE

[ScruffR]

I guess this question was answered here

DFU-UTIL Install on Mac OS X

I have recently faced issues with photon that have meant I needed to install and use DFU-UTIL on my mac running OSX El Capitan. The instructions on the Help Page are rather short on the details of how to do this and overcome the errors that will no doubt crop up for others. Attached here are the work arounds. I had no problems installing brew. However, $ brew install dfu-util kicked out this Error: You must `brew link pkg-config libusb' before dfu-util can be installed Doing as asked kicke…