Changes

!|Major  

!|Major  

!|Minor(s)

!|Minor(s)

!|Notes

!|Notes

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| IOS4 || 0.3 || only has minimal drivers; possibly used during manufacturing and/or updating

| IOS4 || 0.3 || v3 || only has minimal drivers; possibly used during manufacturing and/or updating

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| IOS9 || 2.4 || Has only one LED pattern: blinking.  first "normal" IOS version

| IOS9 || 2.4 || v516, v520 || Has only one LED pattern: blinking.  first "normal" IOS version

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| IOS11 || 0.10 || Internal timestamp says Nov 14 2006 16:26:01

| IOS11 || 0.10 || v10, v256 || Internal timestamp says Nov 14 2006 16:26:01

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| IOS12 || 0.6 ||

| IOS12 || 0.6 || v6, v11 ||

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| IOS13 || 0.10 ||

| IOS13 || 0.10 || v10, v15 ||

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| IOS14 || 1.1 ||

| IOS14 || 1.1 || v262 ||

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| IOS15 || 1.1, 1.4 || contains NAND BOOT PROGRAM

| IOS15 || 1.1, 1.4 || v260 || contains NAND BOOT PROGRAM (NUS gives a 401 error on download attempt)

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| IOS16 ||    || only used for Wii Backup Disc

| IOS16 ||    ||  || only used for Wii Backup Disc

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| IOS17 || 2.0 ||

| IOS17 || 2.0 || v512, v517 ||

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| IOS20 || 0.12 || Feb 22 2007 04:25:59

| IOS20 || 0.12 || v12, v256 || Feb 22 2007 04:25:59

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| IOS21 || 2.2, 2.5 || contains NAND BOOT PROGRAM. most debugging messages are removed.

| IOS21 || 2.2, 2.5 || v514, v515, v516, v517, v522 || contains NAND BOOT PROGRAM. most debugging messages are removed.

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| IOS22 || 3.4 ||

| IOS22 || 3.4 || v777 ||

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| IOS28 || 5.8 ||

| IOS28 || 5.8 || v1288 ||

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| IOS30 || 4.15, 4.16 || starting with IOS30, firmware is divided into 15 modules.  Added USB Keyboard support.

| IOS30 || 4.15, 4.16 || v1037, v1039, v1040 || starting with IOS30, firmware is divided into 15 modules.  Added USB Keyboard support.

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| IOS31 || 4.15, 4.16 ||

| IOS31 || 4.15, 4.16 || v1037, v1039, v1040 ||

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| IOS33 || 4.16 ||

| IOS33 || 4.16 || v1040 ||

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| IOS34 || 4.15 ||

| IOS34 || 4.15 || v1039 ||

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| IOS35 || 4.16 ||

| IOS35 || 4.16 || v1040 ||

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| IOS36 || 4.18 ||

| IOS36 || 4.18 ||  ||

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| [[IOS37]] || 8.22 || first to fix the [[Signing bug|signature-checking function bug]]

| [[IOS37]] || 8.22 ||  || first to fix the [[Signing bug|signature-checking function bug]]

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| [[IOS38]] || 14.19 || Introduced with ''Animal Crossing: City Folk''. Not yet analyzed but may have something to do with WiiSpeak.

| [[IOS38]] || 14.19 ||  || Introduced with ''Animal Crossing: City Folk''. Not yet analyzed but may have something to do with WiiSpeak.

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| IOS50 ||    || distributed along with and used by [[System Menu 3.4]]

| IOS50 ||    ||  || distributed along with and used by [[System Menu 3.4]]

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| [[IOS51]] ||    || used by new Shop Channel. released at same time as fixes to remaining fakesigning bugs

| [[IOS51]] ||    ||  || used by new Shop Channel. released at same time as fixes to remaining fakesigning bugs

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| [[IOS53]] ||    || comes with Need for Speed Undercover

| [[IOS53]] ||    ||  || comes with Need for Speed Undercover

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| [[IOS55]] ||    || comes with Need for Speed Undercover. Seems to have changes in the DI Module. Loading the game with geckoos produces error #002. It can be an update for the new wireless USB Driving Wheel from Logitech, supported only by Need for Speed: Undercover.

| [[IOS55]] ||    ||  || comes with Need for Speed Undercover. Seems to have changes in the DI Module. Loading the game with geckoos produces error #002. It can be an update for the new wireless USB Driving Wheel from Logitech, supported only by Need for Speed: Undercover.

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| IOS254 ||    || distributed along with [[System Menu 3.4]], copy of IOS9

| IOS254 ||    || v2 || distributed along with [[System Menu 3.4]], copy of IOS9

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