This is also a solution to fly the Mavic Mini (and other drones) with the DJI Goggles. As this DJI Support video states at time 1:58, you can connect the goggles to the phantom remote's hdmi port via hdmi cable, for example. Get the hdmi to micro-hdmi adapter in my video's description link, connect that to the hdmi cable included with the goggles. Use this cable to connect to the tablet's micro-hdmi port, and you should be set! You won't have head tracking, but you can use it like any other FPV goggles.