Configering a Maytek F405-TE for a plane

I am somewhat a basic user of computers but currently trying to set up a flight coach controller for a F3A plane. I have purchased a Maytek F405-TE and attempted to create the appropriate firmware, using Ardupilot’s custom creation on their website. Every attempt to fails, does anyone have any advice?

Many thanks Brico

Matek boards ship with iNav loaded on them.

Have you gone through this procedure yet? Loading Firmware onto boards without existing ArduPilot firmware — Plane documentation