No, it would follow the instructions as per the link I’ve sent you as this is more recent …especially later in that post where they talk about using QGroundcontrol.
Shall I install now Q ground control .
Those instruction from Dave not working?
Also note this remark given in that link I’ve sent you:
If FMUv3 doesn’t work you might find updating the bootloader sorts it, both my clones (not MRo) were detected as FMUv2 but they had the fixed chip so with an updated bootloader work fine and are now detected as FMUv3.
Qgroundcontrol can update it and has instructions if you google update pixhawk bootloader.
→ Only proceed with QGroundcontrol if above advice doesn’t work.