IOS15
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IOS15 was previously used by some official channels; it has not been stubbed because the Internet Channel, which could not be updated through standard updates, previously used it.
| IOS15 | |
 | |
| Technical info | |
|---|---|
| Type | Specialized IOS |
| Status | Active |
Some versions of IOS15 contain a copy of the NAND Boot Program with error 001 code; the purpose of this is unclear, as IOS15 was not used by any discs. This was introduced in IOS15v258, built 6 minutes before IOS21v515, suggesting that there was a miscommunication regarding which IOS was supposed to receive this update, since IOS21's hex ID is 1-15, which may be read as IOS15. This only added 624 bytes to IOS15 and 649 bytes to IOS21's Starlet binary, so it was probably a trivial change in the code to load content 3 of the current IOS instead of the boot content of the title being launched, and perfectly doable in 6 minutes.
In the past, this IOS was often used by homebrew, as it is one of the only known IOSes that is safe to downgrade on RVL-CPU-20 Wiis. It was then used to patch the signing bug back into newer IOSes, like IOS36.
Titles using this IOS
None of the latest versions of these titles use IOS15.
Version history
| Version | Signing bug? | /dev/flash access? | ES_Identify? | STM Release Exploit? | STM IOCTL overflow? | SDI register index bug? | Notes |
|---|---|---|---|---|---|---|---|
| v257 | Yes | Yes | Yes | Yes | Yes | Yes | First release |
| v258 | Yes | Yes | Yes | Yes | Yes | Yes | Added Broadway code, and updated Starlet code |
| v259 | Yes | Yes | Yes | Yes | Yes | Yes | Removed Broadway code; this version is identical to v257, only with a different build tag |
| v260 | Yes | Yes | Yes | Yes | Yes | Yes | Added back Broadway code; the Broadway code is identical to v258, but the Starlet code was changed. |
| v265 | No | No | No | Yes | Yes | Yes | |
| v266 | No | No | No | No | Yes | Yes | |
| v523 | No | No | No | No | Yes | Yes | 4.2 update |
| v1031 | No | No | No | No | Yes | Yes | 4.2rev04 update. In addition to the fixes to all IOSes, the Broadway code was removed, for the last time. |
| v1032 | No | No | No | No | Yes | Yes | |
| v1288 | No | No | No | No | Yes | Yes | Only found on vWii and newer RVL-101 units. |
| v26888 | No | No | No | No | Yes | Yes | Only found on Wii mini |