IOS55
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IOS55 is an IOS that some games starting in late 2008 use. Compared to IOS53, it seems to have a newer OHCI module (04/07/08 -> 08/13/08), a newer WD module (08/07/07 -> 08/04/08), a newer WL module (06/28/07 -> 08/04/08), and a newer SSL module (06/21/07 -> 02/27/08). In addition, IOS55 includes a the USB_HID module introduced in IOS37.
| IOS55 | |
 | |
| Technical info | |
|---|---|
| Type | Common IOS |
| Status | Active |
Titles using this IOS
The full list is much longer than this.
- Call of Duty: Modern Warefare - Reflex Edition
- The Conduit
- Donkey Kong Jungle Beat (New Play Control)
- Excite Bots
- Need for Speed: Undercover
- Sonic and the Black Knight
- Wii Sports Resort
- Internet Channel
Purpose and anti-piracy
This IOS is presumably required by NfS: Undercover to make a Logitech USB steering wheel work. However, this does not explain why the other games require it although, in the case of The Conduit, it is possible that there is a connection between its usage and support for the Wii Speak peripheral (it has been reported that both IOS38 and IOS55 are required by the official Nintendo Wii Speak channel).
Typically, if a game that requires this IOS is started without it (via brickblocker or a Starfall update skip, for example), then the screen will turn blue and a white-text error message Error 002 will appear. The Conduit behaves somewhat differently as it will simply display a black screen before freezing.
Version history
| Version | Signing bug? | /dev/flash access? | ES_Identify? | STM Release Exploit? | STM IOCTL overflow? | SDI register index bug? | Notes |
|---|---|---|---|---|---|---|---|
| v4633 | No | No | No | Yes | Yes | Yes | First release |
| v5149 | No | No | No | No | Yes | Yes | |
| v5406 | No | No | No | No | Yes | Yes | |
| v5662 | No | No | No | No | Yes | Yes | |
| v5663 | No | No | No | No | Yes | Yes | Updated WL (4.3rev03) |
| v5919 | No | No | No | No | Yes | Yes | Only found on vWii and newer RVL-101 units. |
| v31519 | No | No | No | No | Yes | Yes | Only found on Wii mini |