🎰 Super Jackpot Party Slot Machine

✅ Working

A real WMS Gaming casino slot machine that wouldn't boot. Now it does.

🎬 It Works! (June 10, 2026)
The day it finally came back to life
🐛 Debugging
The slot machine stopped on a text boot screen, October 2025
Boot messages on the slot machine screen while debugging, May 2026
Brett pointing at the boot screen with a what-now face
The main board with its CompactFlash cards
The cabinet opened up to get at the electronics
🔑 The Key Switch
The WMS Gaming label on the cabinet, serial numbers blurred
The button panel and the spot where the key switch goes
Spade connectors on the switch wiring
Measuring inside the cabinet to fit the new button
📋 About This Project

A WMS Gaming Super Jackpot Party slot machine: a real casino cabinet, not a toy. When I got it, it wouldn't make it into the game. It stopped partway through startup on a screen full of boot messages.

Debugging

Under the hood it runs Linux off CompactFlash cards on the main board, so the boot screen is the place to start. I read through what it was checking and where it gave up, one error at a time.

CompactFlash and a memory clear

The breakthrough was getting the CompactFlash cards right so I could clear out the machine's memory and start fresh.

Reconfiguring

With the memory clear, the machine needed its setup done again from scratch before it would run the game.

The key I didn't have

The last problem: the machine wants a key turned in its key switch, and I didn't have the key. So I swapped the key lock for a push button wired to the same contacts.

The first photos of it stuck are from October 2025. On June 10, 2026 it finally booted all the way up and played.