This page will explain how to fix 2 problems at once, both related to the Hackmii installer.
The first one is the So called "No Vulnerable IOS found" error message from the Hackmii installer itself. Whenever the hackmii installer starts, it will check a set list of IOSs it can use. It will not use a trucha patched IOS, so if all your IOSs are trucha patched (or even worse: missing), you will get this error message.
The second one is the HBC which turns upside down:
Image from: CasperH
This problem is also caused by the same thing: it will not use a Trucha patched IOS. Whenever you patch the IOS the HBC is currently using, it will turn upside down.
So, now we know that, it doesn't come as a big surprise that we'll have to install some clean IOSs...
First of all, if your problem is the Upside down HBC, try re-installing the HBC with the hackmii installer. If that doesn't work, do the steps below.
If the hackmii installer doesn't work, follow these steps too.
Do NOT follow this guide on WiiU
1. Run the NUS Downloader. Enable Pack wad at the Bottom.
Now use the database and navigate to IOS -> IOS58 -> v6175 and start the NUS Download.
2. A new folder will be created in the NUS Downloader folder: titles. Navigate to 000000010000003A -> 6175
In this folder should be a WAD file. Copy this WAD file to the WAD folder on the SD card.
3. Download YAWMM.zip and extract the YAWMM folder in it somewhere. Open the YAWMM folder you just extracted to find a folder named Apps. Copy this folder to the SD card root (let it merge with the existing Apps folder).
4. Run YAWMM.
Now Install the IOS58 wad file.
5. You can now run the Hackmii installer!
To fix Upside down HBC issues, re-install the HBC with the Hackmii installer.
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