The key lets someone with intricate knowledge of a typical slot machine’s inner workings to view hold percentage settings, game history, and payouts on the game’s screen. Most keys are generic and work on slot machines of all manufacturers. Reset a game following verification of a large jackpot. The key is a common tool used by slot machine technicians to gather information or The Las Vegas Review-Journal purchased two of the keys - often referred to as the 2341 slot machine reset/attendant key - from an eBay seller in Winona, Minn., for $12.44, including shipping and handling.īut was the transaction a waste of money? (Michael Quine/Las Vegas Review-Journal)Ĭommon slot machine reset keys - identical to one that caused a Reno casino to be hit with a $1 million gaming fine - are easily found for sale on various Internet sites. Technology Division Chief Jim Barbee explains the uses of the 2341 attendant key on several slot machines at the offices of the State of Nevada Gaming Control Board.