I have not played 3DS for some time and today I wanted to try Mario & Luigi - Paper Jam Bros. (EUR) I have EUR old 3DS. The game hangs on 3DS loading ... probably because of my Gateway version. I have 2.6 ... I just want to ask ... to go to 3.5.1 all I have to do is replace launcher or is there some bigger jump and updating like it was from 1.blabla to 2.blabla ? I am not interested in updating emunand etc. right now and also do not want to mess with CIA files. Just good old .3ds. I also trimmed the ROM but it should not be problem right? Thank you for any quick answer!