QGC stuck at "Upgrade Complete"

[Goldaq_komando]

Hello there.
I am just trying to download Pixhawk 4 firmware to my Pixhawk (Orange Cube) using QGroundControl but i just keep getting stuck in “Upgrade Complete” part.
Here is the logs for firmware section:

It just stays like this.
I tried unplugging and replugging but it shows nothing in QGC.
It does work if i install the ArduPilot firmware using Mission Planner. What should i do to properly download PX4 Pro.
Thanks.

[Retro-meb]

Hi Goldaq_komando,

Could be a drivers problem. Please visit this topic where I have just posted to somethink similar:

Cube Orange PX4 installation fails

Hi Torbjon, The drivers problems with the Cube Orange specifictly, could be a nightmare. Is not strange to being able to connect to a Cube Black but not to a Cube Orange. I suggest you the next workaround that has worked for me many times: Uninstall QGC. From Device Manager unistall both Cube orange devices (with the orange plugged). After that unplugg the Cube. Enter to Mission Planer (in case you have it installated). Press Ctrl+F and select “clean drivers”. Unistall Mission Planner. Go to…