IOS254
| IOS254 | |
 | |
| Technical info | |
|---|---|
| Type | Anti-cIOS Stub IOS |
IOS 254 is commonly used for various purposes:
- BootMii as an IOS, is installed to this slot.
- PatchMii uses this as a temporary IOS.
- System Menu 3.4 included a copy of IOS9 as IOS254 to block PatchMii (and maybe to break some pirate tools), but Nintendo replaced the wrong IOS number, since most pirate tools use IOS249.
- System Menu 4.2 included a Stub IOS in this slot, in an attempt to overwrite BootMii/IOS, but if failed, because the version number wasn't high enough.
| Version | Trucha Bug? | STM Release Exploit? | Notes |
|---|---|---|---|
| v2 | No | Yes | Included in 3.4 update to block PatchMii (copy of IOS9). |
| v3 | No | No | Included in 4.0 update to fix the STM Release Exploit. |
| v260 | N/A | N/A | Stub IOS in 4.2 update to wipe out BootMii/IOS (failed) and reduce the number of IOS branches to be maintained |
| v65280 | N/A | N/A | Stub IOS in 4.3 update to wipe out BootMii/IOS |
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