Soft resetting (often shortened as SRing) is a feature found in the
main series Pokémon games, with the exception of Pokémon Colosseum.
You have to press the following buttons at the same time:
I have done this before so I know.
If you don't press them together this will not work.
This is just a way of resetting the game and takes less energy than switching on and off. Better for the DSi and the Game Chip too.
Read this for more information.
Well, have fun Soft Resetting!