Insert the SD on your PC / laptop
Download the OS and follow the instructions of the following links.
The first time you connect the mini PC with a screen, you must select the vehicle to configure.
To do this, you need three things, a mouse, a screen and feed the PXFmini.
In this link, different feeding ways are shown.
After selecting the desired vehicle PXFmini configures itself and is ready to fly, roll, walk ...
If you need to change the PXFmini configuration, just introduce erle-reset in the prompt and everything will be restored to its initial state.