IOS21
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IOS21 is most commonly used by third-party games. It also contains a copy of the NAND Boot Program in content 1 in some versions, identical to the one in IOS15. This was probably to make error 001 appear in older games, as a lot of games use IOS21.
| IOS21 | |
 | |
| Technical info | |
|---|---|
| Type | Common IOS |
| Status | Active |
It probably had the connection fixes advertised for 2.2. Many games such as Wii Sports were also rereleased under this IOS with a newer strap screen, probably in response to TVs getting smashed.
This IOS was used by older versions of DataChk, a factory title.
Version history
| Version | Signing bug? | /dev/flash access? | ES_Identify? | STM Release Exploit? | STM IOCTL overflow? | SDI register index bug? | Notes |
|---|---|---|---|---|---|---|---|
| v512 | Yes | Yes | Yes | Yes | Yes | Yes | Lowest version released, but not the first release. Released on Mario & Sonic at the Olympic Games in November 2007. |
| v514 | Yes | Yes | Yes | Yes | Yes | Yes | First release; 2.2 update |
| v515 | Yes | Yes | Yes | Yes | Yes | Yes | Added Broadway binary, updated Starlet binary |
| v516 | Yes | Yes | Yes | Yes | Yes | Yes | Removed Broadway binary. The Starlet binary is identical to v514, but the build tag is newer. |
| v517 | Yes | Yes | Yes | Yes | Yes | Yes | Added back the Broadway binary, and updated the Starlet binary (different from v515 and v516) |
| v522 | No | No | No | Yes | Yes | Yes | |
| v525 | No | No | No | No | Yes | Yes | |
| v782 | No | No | No | No | Yes | Yes | |
| v1038 | No | No | No | No | Yes | Yes | |
| v1039 | No | No | No | No | Yes | Yes | |
| v1295 | No | No | No | No | Yes | Yes | Only found on vWii and newer RVL-101 units. |
| v26895 | No | No | No | No | Yes | Yes | Only found on Wii mini |