Can’t install firmware

Hi guys can anyone help with this? We are unable to flash firmware to our cube either via aPm planner or q ground control. We are using Mac

We’ve tried so many combinations and followed tutorials online but getting nowhere:

Try the beta latest build of QGC and not the public. They have a daily build if I recall.

What colour cube is this ? Of orange or yellow you will need to beta on my experience.

We have the cube black

I ran into the same issue. The solution was to use Mission Planner. I had some grief also with Parallels. It tended to be intermittent. I used a native Windows 10 machine with Mission Planner which worked each time.