I'm gonna save myself some trouble here and just quote my guide.
The Trucha Bug Restorer
Now you have the Trucha Bug on your system! YAY! Now what do we do with that? There are many things you can do with it now but first and foremost you are most likely going to be using a...
cIOS Installer
Now that you have a cIOS installed, you can use Wad Manager 1.4 or 1.5 and have that select IOS249 to install any wad's you want without getting that -2011 error or something along those lines. I'll put a section on wad manager in a bit as well. Also now that you have this cIOS installed, you can play backup Wii games provided you use a proper backup loader for the game
The Trucha Bug Restorer
Soon after cboot2 came around, WiiPower released this handy tool that works on older Wii's on 3.3 or higher up to 4.1 (most recent at the moment) and even works for those LU64+/boot2v4 users on whatever firmware they are on. It is a fairly simple application to use that downgrades IOS15, but does so in a way that is safe to do on a boot2v4/LU64+ type Wii. I think I've already talked about the Trucha Bug enough at this point so there isn't all that much to talk about the Trucha Bug Restorer aside from how to use it. It's the new most recent method of getting the Trucha Bug back on systems above FW 3.2 that don't have it anymore and it works on ANY type of Wii. So in short, unless you're on 3.2 or lower, you will be using this to get the trucha bug on your system so you can use it to install a cIOS.
This application has both an offline and online method so you can use this even if you don't have wifi, but you will have to get the IOS wad's it needs. xzxero's simplistic mod guide does a good job of explaining how you can use the NUS downloader to obtain the necessary files for using this offline in the offline section of his guide. I will link to that again later on. It is a good simple guide to be able to get what you need without any wifi connection necessary anywhere (and now has a method even if you DO have wifi!)
Moving on, whether you want to use the Trucha Bug Restorer with or without wifi, what you're going to be doing with it is first loading it and just either selecting the default IOS or just press B for no IOS reload, I don't think it really matters for the first thing you need to do which is going to downgrade IOS15.
Select that in the menu after the first prompts and whenever it prompts you to either load IOS from SD, change it to download from NUS if you have wifi or just press A to load IOS from SD card if you are doing it offline and have already gotten the IOS wad's beforehand on your SD card.
After that is done downgrading, you are going to run it again and this time at the first prompt you will change the IOS to IOS15 instead of IOS36 and press A to load it from that IOS. Then go to the IOS36 menu to have it install an IOS36 with the sig hash check (aka trucha bug) and the ES_Identify patch to the IOS36 slot. ES_Identify I believe will be used later on for things like installing preloader or using AnyTitleDeleter. Then continue to select either download from NUS or Load from SD card depending on whether you are doing this online or offline respectively.
Once that is done you will run this a third and final time. This time select IOS36 in the first screen and then go to Restore IOS15. Again select download from NUS or load from SD card as before. You do this because you have already done what was needed to be done with IOS15 by using it to patch the trucha bug in IOS36 so you don't want to just leave it in that downgraded state.
And once again because videos are cool, HERE is a video showing how to use the Trucha Bug Restorer. The video demonstrates doing it WITH wifi so they are selecting download from NUS at every prompt of it.
This application has both an offline and online method so you can use this even if you don't have wifi, but you will have to get the IOS wad's it needs. xzxero's simplistic mod guide does a good job of explaining how you can use the NUS downloader to obtain the necessary files for using this offline in the offline section of his guide. I will link to that again later on. It is a good simple guide to be able to get what you need without any wifi connection necessary anywhere (and now has a method even if you DO have wifi!)
Moving on, whether you want to use the Trucha Bug Restorer with or without wifi, what you're going to be doing with it is first loading it and just either selecting the default IOS or just press B for no IOS reload, I don't think it really matters for the first thing you need to do which is going to downgrade IOS15.
Select that in the menu after the first prompts and whenever it prompts you to either load IOS from SD, change it to download from NUS if you have wifi or just press A to load IOS from SD card if you are doing it offline and have already gotten the IOS wad's beforehand on your SD card.
After that is done downgrading, you are going to run it again and this time at the first prompt you will change the IOS to IOS15 instead of IOS36 and press A to load it from that IOS. Then go to the IOS36 menu to have it install an IOS36 with the sig hash check (aka trucha bug) and the ES_Identify patch to the IOS36 slot. ES_Identify I believe will be used later on for things like installing preloader or using AnyTitleDeleter. Then continue to select either download from NUS or Load from SD card depending on whether you are doing this online or offline respectively.
Once that is done you will run this a third and final time. This time select IOS36 in the first screen and then go to Restore IOS15. Again select download from NUS or load from SD card as before. You do this because you have already done what was needed to be done with IOS15 by using it to patch the trucha bug in IOS36 so you don't want to just leave it in that downgraded state.
And once again because videos are cool, HERE is a video showing how to use the Trucha Bug Restorer. The video demonstrates doing it WITH wifi so they are selecting download from NUS at every prompt of it.
Now you have the Trucha Bug on your system! YAY! Now what do we do with that? There are many things you can do with it now but first and foremost you are most likely going to be using a...
cIOS Installer
That links to the most recent cIOS installer at the moment, cIOS38 rev14. You may or may not want to use a slightly older cIOS revision like rev10 or rev13a, but for now I'll just tell you to use rev14 because it has the option of choosing what IOS to use when installing instead of just using IOS249 by default. You can change to any other revision you want afterwards by simply running the installer for that cIOS revision and selecting IOS249 when it prompts (in rev13a's case).
Why would you not want to use the most recent one? Because while it does bring improvements in some areas, it also brings some bugs to other things. It's up to you what cIOS revision suits your needs best. If you have no problems with any bugs rev14 has then go for it. They all have their share of minor bugs, it's just a matter of which one's you would rather deal with.
Why do you need a cIOS?
Because most things in the homebrew scene need it. If you want to play Wii backup games without a mod chip, you need a cIOS. If you want to install wad's of most any kind, you need the trucha bug (which any cIOS has). It is pretty much the backbone of everything you would want to do on your Wii homebrew wise.
So anyways moving on. This installer can also be used with or without wifi. If you have wifi, you would just select network installation and it will download the IOS38 version that it needs and use that on the fly. If you do not have wifi, you will need to get the IOS38-64v3610.wad and put it on the root of your SD card. Getting this wad is also done in the same way as you got the wad's for the Trucha Bug Restorer with the NUS downloader. Again refer to xzxero's simplistic mod offline guide on how to get IOS38 through the NUS downloader.
Running this installer through the HBC, you should first be prompted for what IOS you want it to use to install it. Since you just now got the Trucha Bug back in IOS36, you would select that IOS to use. If you are updating your cIOS to this after having a previous revision installed, you would use IOS249. All cIOS revisions also have the trucha bug intact so generally once you have a cIOS installed, you can use that IOS249 where it installed for anything that needs the trucha bug like installing wad's or updating the cIOS to a newer revision.
The next prompt that you will have a choice for, is whether you want to do a WAD installation, or a network installation. If you are doing this offline and have gotten the IOS38 wad on the root of your sd card, select WAD installation and it will use that wad to continue with the installation. If you are doing this through wifi, you would just select Network installation and it will download that wad automatically.
Why would you not want to use the most recent one? Because while it does bring improvements in some areas, it also brings some bugs to other things. It's up to you what cIOS revision suits your needs best. If you have no problems with any bugs rev14 has then go for it. They all have their share of minor bugs, it's just a matter of which one's you would rather deal with.
Why do you need a cIOS?
Because most things in the homebrew scene need it. If you want to play Wii backup games without a mod chip, you need a cIOS. If you want to install wad's of most any kind, you need the trucha bug (which any cIOS has). It is pretty much the backbone of everything you would want to do on your Wii homebrew wise.
So anyways moving on. This installer can also be used with or without wifi. If you have wifi, you would just select network installation and it will download the IOS38 version that it needs and use that on the fly. If you do not have wifi, you will need to get the IOS38-64v3610.wad and put it on the root of your SD card. Getting this wad is also done in the same way as you got the wad's for the Trucha Bug Restorer with the NUS downloader. Again refer to xzxero's simplistic mod offline guide on how to get IOS38 through the NUS downloader.
Running this installer through the HBC, you should first be prompted for what IOS you want it to use to install it. Since you just now got the Trucha Bug back in IOS36, you would select that IOS to use. If you are updating your cIOS to this after having a previous revision installed, you would use IOS249. All cIOS revisions also have the trucha bug intact so generally once you have a cIOS installed, you can use that IOS249 where it installed for anything that needs the trucha bug like installing wad's or updating the cIOS to a newer revision.
The next prompt that you will have a choice for, is whether you want to do a WAD installation, or a network installation. If you are doing this offline and have gotten the IOS38 wad on the root of your sd card, select WAD installation and it will use that wad to continue with the installation. If you are doing this through wifi, you would just select Network installation and it will download that wad automatically.
Now that you have a cIOS installed, you can use Wad Manager 1.4 or 1.5 and have that select IOS249 to install any wad's you want without getting that -2011 error or something along those lines. I'll put a section on wad manager in a bit as well. Also now that you have this cIOS installed, you can play backup Wii games provided you use a proper backup loader for the game







