To diagnose, I need the exact error code or message (e.g., "Error #001", "Unable to read disc", "System files corrupted").
| Error / Symptom | Likely Cause | Fix |
|---|---|---|
| Black screen / "System files corrupted" | Bad NAND / failed update / bad theme | Priiloader → Load BootMii → NAND restore |
| "Unable to read disc" | Dirty lens / bad laser / scratched disc | Clean lens (lens cleaner disc), try other games, replace drive |
| Error 002 / 001 (backup launchers) | cIOS missing / wrong IOS base | Reinstall d2x cIOS v10 (base 56/57) |
| Error 110213 / 204xxx (Wi-Fi) | Router firewall / DNS / Nintendo WFC dead | Use custom DNS (95.217.77.151), check Wiimmfi for Mario Kart Wii |
| Green flash → red blink (power LED) | Overheating / GPU failure / Bluetooth module | Clean fan/heatsink, replace thermal paste, check BT module |
error code Wii" on WiiBrew or r/WiiHacks.Reply with the error code for targeted help.