IOS12 is an IOS that was previously thought to be the oldest,[1] but that was due to an outdated build date of June 4, 2006, probably from IOSP.
IOS12v6 is most likely a copy of IOS11v6, since both IOS11 and IOS12 have NCD modules that use /shared2/sys/net/02/config.dat, while IOS5 is known to have an NCD module that uses /shared2/sys/net/config.dat due to the code responsible for deciding on the config file using the latter on every IOS before IOS11.
The SDK version built for IOS12 only supports 4:3 video.
Titles using this IOS
Version history
| Version
|
Signing bug?
|
/dev/flash access?
|
ES_Identify?
|
STM Release Exploit?
|
STM IOCTL overflow?
|
SDI register index bug?
|
Notes
|
| v5
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Installed on an RVT-R Reader at the factory. Only known to exist because the /meta entry was not deleted.
|
| v6
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
First release. 2.0 update.
|
| v11
|
No
|
No
|
No
|
Yes
|
Yes
|
Yes
|
|
| v12
|
No
|
No
|
No
|
No
|
Yes
|
Yes
|
|
| v269
|
No
|
No
|
No
|
No
|
No
|
Yes
|
|
| v525
|
No
|
No
|
No
|
No
|
No
|
No
|
|
| v526
|
No
|
No
|
No
|
No
|
No
|
No
|
|
| v782
|
No
|
No
|
No
|
No
|
No
|
No
|
Only found on vWii and newer RVL-101 units.
|
| v26382
|
No
|
No
|
No
|
No
|
No
|
No
|
Only found on Wii mini
|
References
↑ 1. "IOS: history, build process" on HackMii
