I am going to show you how to setup your EZ Flash 3 in 1 Expansion Pack with your R4, M3, and N5. First, you need the zip file called : r4ysauto.zip Here is a link to it. r4ysauto Click on DOWNLOAD Also get the YSmenu. Here is a link to it. YSMENU Look under the DS(T_T)DS title. Unzip both files. If you don't have Winzip, get Universal Extractor. It is an awesome file decompressor. Call the YSmenu file this YSMenu0809132222 The file has a file called r4. Click on it. Follow the instructions. I prefer to have YSMENU as an nds file. The program should spit out an r4 custom file. Put in in your MicroSd card. Put the YSmenu.nds in the root directory of the card. You are good to go.