Are you using…?
To enable the Real Time Save feature for a game, press and hold the SELECT button while starting the game. It will create an RTS file in your saves folder with the same filename as your NDS file:
- If you have normal save mode enabled, this is the same folder as your .nds file
- If you have alternate save mode enabled, this is the /SAVES folder on your microSD root
If you are using the new GUI beta firmware, you can enable Real Time Save by using the menu. Simply select the game you want to enable RTS for, tap the menu button in the bottom-left of your bottom screen, and then enable RTS from the menu option.