Unable to upload firmware on pixhawk

I’m trying to upload px4 on cube orange but every time I’m facing this issue (image attached below).

Which version of QGC is this?

I’m using latest version of qgc, v4.3.0

What if you unplug and re-plug the Cube? I assume the problem is that the 5s of the bootloader pass too quickly. Have you tried a different cable or a different port, maybe one without USB hub?

I tried different cable, different cube and also did the plug out plug in game, but it didn’t work. I think there might be some hardware issue of the board and that’s what I’m looking for.