I've tested this on a R4iTT, so I'm not sure if it works on others as well. Be sure to backup the kernel of your R4 first. What you need to do is simply copy any kernel of the R4i Advance to your MicroSD Card. The kernel of the R4 you have should be there too. Now, when you open the card on your DS console, just open the .nds file the kernel of the R4i Advance had. Something like: 0000 - Back R4iMenu.nds. It should bring you to the R4i Advance's Main Menu Screen. That is all. The reason why I used R4i Advance instead of the R4itt is because that R4itt's Cheat Menu is kind of hard to use and sometimes freezes when you save. Not to mention that most codes doesn't work. R4i Advance works well and is easy to use. The background can easily be changed. R4itt doesn't have any skins yet excluding the default ones.