Cube Orange & PX4 stack issue

[dell640]

This guy seems to have the same problem:

Weird issues

let me start by saying hello, im a new user here…thanks for having a greet interface to get help and be part of the development process. My issues are these: for starters i wanted to switch firmware from ardupilot to px4.(proficnc adsb carrier + cube orange). I started out with mission planner, not realizing it was flashing ardupilot not px4, so i switched it over to Qgroundcontrol. when i try and flash px4 through qgcs it gives me “Unable to find specified firmware for board type” all the data…