Your answer from the thread you created:
There is no known method of backing up the series.
But you might want to trade his Pokemon to an another game cartridge,
that way his Pokemon will not be deleted! But be sure to ask his approval before making any actions!
There is no known method of backing up the series.
But you might want to trade his Pokemon to an another game cartridge,
that way his Pokemon will not be deleted! But be sure to ask his approval before making any actions!