Thanks to Maikel Steneker for R4YSauto and his guide on the R4 forums. This is a simplified guide for those using the M3 DS Simply and longing to get YSMenu on their card. 1. Go here: http://home.usay.jp/pc/etc/nds/ 2. Scroll down the Japanese page--it won't be on the Engrish version--and download YSMenu (It is under his update entitled DS(T_T)DS) 3. Rename the compressed file to: YSMenu0810211800 4. Move the file to a newly created folder on the Desktop named: M3DSS 4. Download this: http://22.214.171.124/~koen/hbdb/YSMenu/002/r4ysauto.zip 5. Extract file to the M3DSS folder on the Desktop. 6. Download this: http://126.96.36.199/~koen/hbdb/YSMenu/002/update.zip 7. Extract file to the M3DSS folder on the Desktop. 8. Run r4.bat (it will update) and it will generate the .DAT file and TTMENU folder. 9. Move the new files to your M3 DS Simply... viola. (Move and Replace all--which is 2 files) 10. Turn it on and you'll be booting into YSMenu on your M3 DS Simply.