1. Yes you need the SD Card in the Wii U, when the exploit is triggered it will look for the Homebrew Launcher files on the SD card and load the Homebrew Launcher, if you don't have the SD Card in the Wii U their is nothing for it to load. 2. A visiting a few sites is fine, theirs no right or wrong answer here 3. You don't need any terminal commands to use this exploit, the process to launch it is exactly as i showed in the video. Essentially with the files on the SD Card, visit wiiu.insanenutter.com and that will trigger the exploit. 4. Yes it works as normal. Just keep trying, as i think i mentioned before the first time I launched the exploit took what seemed like forever. However someone else got lucky and managed it first time. Once you have managed once it does become a lot more reliable however.