Quadruple I/O firmware 3.22 update (MAC)

Install Homebrew

Install avrdude

Download .zip with firmware and bash script:

Disconnect DC power, connect Quadruple to your MAC using micro-USB data cable

Find port of your quadruple in terminal:

ls -l /dev/cu.*

Unzip downloaded file, edit .sh file and modify line 16 with


Change XXXXXXXXXX to the port found in previous step and save script file

Run script in terminal:


Perform “factory reset” after flashing (A+D hold on boot). Check manual.