Board doesn’t start – several reasons this could be happening, dead battery, board is too cold, board could be dead.
Dead on arrival – not totally clear why this is happening, but it is.
Ghosting – the onewheel doesn’t stop when the board is disengaged. There are several videos of this happening on reddit and youtube.
Footpad sensor issues – this is related to Ghosting, as far as I know Future Motion will send you a new footpad, meaning its likely not a software issue but a hardware issue.
Onewheel won’t charge – could be several reasons for this, but the main cause is not clear.