IOS4
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| IOS4 | |
 | |
| Release | |
|---|---|
| Initial | boot2v0 |
| System Update | 3.3rev03 |
| Technical info | |
| Type | System Menu IOS |
| Status | Private Corporate IOS |
IOS4 was a very primitive IOS that was used by both the Startup Disc Menu and the System Menu used in the factory process. This IOS and the System Menu come preburnt at the factory, before any other discs are inserted.
| Version | Signing bug? | STM Release Exploit? | Notes |
|---|---|---|---|
| v1 | Yes | ? | Used by the Factory System Menu and 0000. |
| v3 | Yes | ? | Used in Startup Disc Menu |
| v259 | N/A | N/A | Stub IOS preinstalled on Korean RVL-CPU-20 consoles. |
| v65280 | N/A | N/A | Stub IOS released in 3.3rev03 and 3.5. |
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