Note: This is version 1.09 OS. Some New DSTWO carts have no fireware, you need to write in it by yourself before using. This is the way: Code: For NDSi/NDSiXL/NDSiLL: 1, copy the correct _dstwo folder and ds2boot.dat file to the root of your microsd card. 2, insert DSTWO into your console. Boot the console, dont turn off it untill you see the DSTWO cart LOGO(the logo of Fish Tycoon, maybe need about 1 minute). Then re-boot your console. For NDS/NDSL: 1, copy the correct _dstwo folder and ds2boot.dat file to the root of your microsd card. 2, insert DSTWO into your console. Boot the console, then re-boot when you entered the menu of NDS. Code: 1. Fixed Hello Kitty Big City Dreams(E) 2. Fixed Battle of Giants: Mutant Insects(U) 3. Fixed Bleach Dark Souls(U) 4. Fixed Real-Time-Cheat display bug for some games (include "0" in their crc32) 5. Fixed Real-Time-Guide display bug for some games when your named RTG file as different letter case with rom file 6. Fixed the GBA union for Rockman(#0484) and Pokemon(#0026) 7. Fixed the bug for some homebrews which use (__system_argv), like "MyNitro" the red lettering only applies if you have recently bought the DSTwo, anyone that has been running theirs for awhile does not need the dstwoboot.dat file or have to follow the directions above any normal update, you allow the _dstwo folder to override your old one Download Link: http://down.supercard.sc/download/dstwo/DSTWO_v1.09_eng.zip Original source: http://forum.supercard.sc/thread-8092-1-1.html