Fix: Wii Freezes at "Insert Nunchuk" in Madden NFL 10

Common issue. The game polls for Nunchuk on startup; if communication fails, it soft-locks.

Fixes (Ordered by Success Probability)

1. Reseat Nunchuk: Unplug → blow out port (compressed air) → plug firmly until click. Wiggle cable at base — internal wire fatigue common.
2. Try Different Nunchuk: Borrow/buy known-good. Original Nintendo (white/gray) most reliable. Third-party (Nyko, Mad Catz) fail faster.
3. Fresh Batteries in Wii Remote: Low voltage → weak 3.3V line to Nunchuk → detection fail. Use alkaline (not rechargeable NiMH — 1.2V each = 2.4V total, too low).
4. Clean Wii Remote Expansion Port: 99% IPA + toothbrush → dry compressed air. Corrosion common.
5. Disc Condition: Clean (radial, center→edge). Deep scratches near inner track (where Nunchuk check code lives) cause freeze.
6. Delete Madden 10 Save: Wii Menu → Data Management → Save Data → Wii → Madden 10 → Erase. Corrupt save can hang init.
7. System Update: Wii Menu 4.3 (latest) — fixes some IOS issues. Settings → Wii System Update.
8. Launch via Gecko OS / USB Loader GX (Homebrew): Bypass disc check, force IOS reload — often bypasses the hang.

If All Fail

Wii Remote Bluetooth module or mainboard I2C bus failing. Repair cost > used Wii ($40–$60). Replace console, transfer saves via SD Card (Data Management → Save Data → Copy to SD).