THEN, you will need to pull the 2 spade connectors off the lock and touch the 2 wires together (to simulate the key) to resume normal game play. When you get to the last page, the display will go blank for 2-3 seconds, then the amount of the Jackpot you hit will appear again.
Open the door and, while watching the display, keep pushing the white button to advance through the Menu to the end. When you shut the door, you'll see some odd numbers on the display. You must flip through ALL the pages to the end now.
Now that you have pushed it, you are most likely in the Menu. And just so you know, the white button gets you into the Menu (to make changes to settings, etc.).