Difference between revisions of "IOS15"

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(weird file seems to just be the sdk)
(speculation on the mistake that led to the sdk being added here)
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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''' 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.
  
Some versions of IOS15 contain a copy of the [[SDK]]; these were probably originally development versions.
+
Some versions of IOS15 contain a copy of the [[SDK]] 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]].
 
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]].
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{{IOS version history|
 
{{IOS version history|
 
{{IOS version|v257|none|First release}}
 
{{IOS version|v257|none|First release}}
{{IOS version|v258|none|Added Broadway code, and updated ARM code}}
+
{{IOS version|v258|none|Added Broadway code, and updated Starlet code}}
 
{{IOS version|v259|none|Removed Broadway code; this version is identical to v257, only with a different build tag}}
 
{{IOS version|v259|none|Removed Broadway code; this version is identical to v257, only with a different build tag}}
{{IOS version|v260|none|Added back Broadway code; the Broadway code is identical to v258, but the ARM code was changed.}}
+
{{IOS version|v260|none|Added back Broadway code; the Broadway code is identical to v258, but the Starlet code was changed.}}
 
{{IOS version|v265|identify}}
 
{{IOS version|v265|identify}}
 
{{IOS version|v266|stm}}
 
{{IOS version|v266|stm}}

Revision as of 07:48, 4 December 2021

IOS15
WiiDrawing.png
Technical info
TypeSpecialized IOS
StatusActive


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.

Some versions of IOS15 contain a copy of the SDK 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? Notes
v257 Yes Yes Yes Yes First release
v258 Yes Yes Yes Yes Added Broadway code, and updated Starlet code
v259 Yes Yes Yes Yes Removed Broadway code; this version is identical to v257, only with a different build tag
v260 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
v266 No No No No
v523 No No No No 4.2 update
v1031 No No No No 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
v1288 No No No No Only found on vWii and newer RVL-101 units.
v26888 No No No No Only found on Wii mini