CONFUSION!
So I recently wanted to start using a USB Loader, and I picked Configurable USB Loader. However upon booting up, it says "Custom IOS 249 is a stub! Please reinstall". Yeah, no idea what it's talking about. Help?
You need to install cIOS249, preferably rev 14 or above.
Ah. After a quick Google search I was able to find it. Thanks Beyond.