Pick a series - Halo, Destiny, Diablo, Far Cry, Dark Souls, Mass Effect, Dragon Age, Baldur's Gate, Assassin's Creed, Uncharted, Tomb Raider, etc.
all reset upon failure.
Downloads for the 520 were paused and
upon investigation, it was discovered that the way in which the
reset tool was re-flashing the devices was responsible for the
failures.