No, because hoverboards are highly positively buoyant when below a fixed distance from the ground, and negatively buoyant when above it. But lighter-than-air vehicles are equally buoyant at all distances above the ground (unless you run out of atmosphere).
That's actually true of LTA vehicles, too, since the atmosphere gets progressively less dense the further from Earth you are.
It's just that the distance above ground at which the buoyancy changes sign is much, much higher :)
fit it with an altimeter so that once it is a meter above the ground it takes in air?