+-----------+
| CHANGELOG |
+-----------+
[ CIOSX rev 21 ]:
- Added support for IOS58.
- Added support for IOS58 EHCI module (more compatibility).
- NAND emulator fixed (most stuff should work now).
- Many fixes and improvements.
[ CIOSX rev 20 ]:
- Added support to IOS36, IOS53, IOS55, IOS56, IOS61 and IOS80.
- Updated IOS37, IOS38 and IOS57 bases.
- Installer supports GameCube pads.
- Installer supports custom slots.
- Installer network code improved.
- IOS modules timers fixed.
- MLoad module improved (new calls and fixes).
- FAT module rewritten (using FatFs).
- SDHC module improved (buffers and cache).
- DIP plugin improved.
- ES plugin added.
- FFS plugin improved.
- IOS reload block implemented (only works correctly with DVD titles).
- Identified titles cannot use custom modules.
- NAND emulator improved (fixes and usage of new FAT module).
- MEM2 protection disabled by default.
- AHBPROT flag set to allow HW access from PPC.
- Easter egg added.
- Miscellaneous improvements and fixes.
[ CIOSX rev 19 ]:
- Fixed the cover register emulation in DIP plugin.
- Fixed bug in DIP and FFS plugins (this caused the SDHC module bug).
- Fixed USB device support in FAT module.
- Removed support for invalid FAT characters in FAT module.
- Added support for invalud FAT characters in FFS plugin.
- Miscellaneous fixes and improvements.
[ CIOSX rev 18 ]:
- Added support to IOS37, IOS38, IOS57, IOS60 and IOS70.
- MLoad module added (not Hermes version).
- DIP plugin improved (auto-installable plugin).
- FFS plugin improved (auto-installable plugin).
- EHCI module improved.
- FAT module improved.
- SDHC module improved.
- ES plugin removed.
- Patching system improved.
- DVD+DL bug fixed.
- Support for invalid FAT characters (replaced with '_').
- FAT support in DIP plugin.
- NAND emulation path redirection improved.
- Added full and partial NAND emulation modes.
- Added support for IOS logging to a buffer.
- Added support for IOS logging through USB Gecko.
- IOS module loading support from PPC.
[ CIOS38 rev 17 ]:
- DIP plugin improved (some code has been rewritten).
- More error 001 bug fixing.
- DVD+DL bug fixed.
- FFS plugin fixed.
[ CIOS38 rev 16 ]:
- Error 001 bug fixed.
- NSMB proper fix added.
[ CIOS38 rev 15 ]:
- DVD+DL support fixed.
- DIP plugin improvement (NSMB may work a bit better).
- ES plugin optimized.
- FAT module bugs fixed.
- FFS plugin bugs fixed.
- EHCI module optimized.
- Fixed bug in Installer.
- Miscellaneous changes.
[ CIOS38 rev 14 ]:
- Support for games with new error 002.
- DIP plugin updated (cover commands emulation fixed).
- ES plugin updated.
- FFS plugin updated.
- EHCI module improved.
- SDHC module improved.
- FAT module improved.
- Implemented new anti error 001 system.
- Anti error 002 system removed.
- NAND emulation system added (from SD/USB device).
- Content override system added (from SD/USB device).
- System Menu support (Disc Channel works again).
- Installer support for cBoot2.
- Installer support for all IOS.
- Some bugs fixed.
[ CIOS38 rev 13 ]:
- Read speed improved.
- EHCI module improved.
- SDHC module improved.
- DIP plugin improved.
- ES plugin updated.
- Implemented new system anti error 002.
[ CIOS38 rev 12 ]:
- Based on IOS 38 v3610.
- Support for consoles with serial number LU64+
- Error 001/002 patching system improved.
- Cover check patch added (thanks to sorg).
- EHCI module improved (thanks to Hermes).
- SDHC module improved.
- DIP plugin improved.
- ES plugin added.
- FFS plugin added.
- Some patches fixed.
- Misc improvements and fixes.
[ CIOS36 rev 10 ]:
- Some modifications in DIP plugin.
- SDHC module added (thanks to WiiGator for the help).
[ CIOS36 rev 09 ]:
- EHCI module made by kwiirk added.
- Support for USB mode in DIP plugin.
- Removed NAND permissions check.
[ CIOS36 rev 08 ]:
- Custom IOCTL_DI_OFFSET command (for multigame support).
- Support for custom DIP commands.
- D0 read command now reads at 6x when using original discs or modchip.
- Error 001/002 transparent patching system.
- Fixes and improvements.
[ CIOS36 rev 07 ]:
- DIP plugin updated (lots of improvements).
[ CIOS36 rev 06 ]:
- Custom DIP module removed.
- DIP module patched (DIP plugin) to support backups.
[ CIOS36 rev 05 ]:
- ES_CloseContent() permission check removed.
- Custom DIP module v0.2 added.
[ CIOS36 rev 04 ]:
- Now the base IOS is IOS36.
- ES_OpenTitleContent() titleid check removed.
- ES_ReadContent() permission check removed.
[ CIOS37 rev 03 ]:
- ES_AddTicketStart() title version check removed.
- ES_DeleteTicket() and ES_DeleteTitle() now can delete system titles.
- ES_SetUID() check removed.
[ CIOS37 rev 02 ]:
- Removed copyright code.
- Changed the way the IOS is patched.
[ CIOS37 rev 01 ]:
- DVD_LowUnencryptedRead() limit removed.
- ES hash check disabled (Trucha bug).

Notice: This is not risky if you have Bootmii installed as a boot2 replacement. Well, not very risky.
Notice 2: DO NOT ASK ME FOR ANY OF THIS STUFF. Its not illegal but it can promote piracy. So don't ask. Google is your friend.
Notice 3: This takes some technical know how.
Notice 4: Preloader .3 hasn't been released except for an autoupdate yet, wait for the true online release if you want it.
Ok, anyway, you can upgrade to 4.2U and still use Homebrew.
What you need:
System Menu 4.1
A trucha signed IOS249 (cIOS38 rev14)
A Wad Manager (1.4 or 1.5)
NUS Downloader (Found on Wiibrew)
Homebrew already installed
Preloader .30
Bootmii as a boot2 replacement (not required but recommended highly)
Method:
1). Make cIOS38 rev14 installer an active application, as well as the Wad Manager (it cannot be a WAD Manager channel please notice that) and preloader.
2). Run the cIOS38 rev14 installer, either have the WAD for it on the SD card or use the network install (the latter is recommended, use the NUS Downloader to get it otherwise).
3). Run the NUS Downloader. Check the 'Pack the wad' option and for title do the following:
Wii System Menu 4.2: 0000000100000002 v481
Wii Shop Channel: 0001000248414241 v17
IOS38: 0000000100000026 v3867
IOS56: 0000000100000038 v5405
IOS57: 0000000100000039 v5661
IOS70: 0000000100000046 v6687
4). Make a folder in the root of the SD card called 'Wad'. Paste every wad produced inside (ignore the files without an extension, just grab the wad files).
5). Edit the hacks.ini file to have the following code for the preloader file and put it in the root of the SD card:
6). Run the WAD Manager from the Homebrew channel. Choose to use the power of IOS249 and choose the front SD slot and install everything but the Wii system menu.
7). Go to the bootmii screen after this and make a nand dump (highly recommended, not required).
8). After making the nand dump, go back to the Wad manager and install the system menu wad.
9). Do NOT EXIT TO THE SYSTEM MENU. In the loader, go to the preloader application. Install it and then it should take you to the preloader screen. Go to the hacks options and make sure to enable the code.
10). Now you can go to the system menu. Until an update patch comes out, you MUST load every time from Gecko OS for any new game or your Wii might become LU64+ (not really but really, it will become boot2v4 but if you already had a trucha signing bug your fine).
11). Enjoy.
Please note this has no warranty whatsoever and there is absolutely no point in going to 4.2 at the moment. This is for NTSC-U Wii's and do this at your own risk. its fairly safe but remember that this has no warranty whatsoever. Post a visitor message or contact me on my Youtube account (my home page) if you have questions or troubleshooting.
You should still be able to downgrade after this but be careful seriously. Just installing the system menu for 4.1 should be fine but make sure you install preloader.