A Vivillon's pattern depends on the region your DS is in, so it cannot be changed (no matter how many different save files you try).
Archipelago Pattern Vivillon can be found in Puerto Rico, Anguilla, the Dominican Republic, Haiti, north Venezuela, the regions of Atlantic, Guajira and Magdalena regions from Colombia and the Yucatán region of Mexico.
Continental Pattern Vivillon can be found in China, Denmark, Germany, some countries of Argentina and South Korea.
Elegant Pattern Vivillon is found in most areas of Japan.
Garden Pattern Vivillon can be found in the United Kingdom, Ireland, and New Zealand.
High Plains Pattern Vivillon is found in the Western United States, although some players in Colorado report finding the Continental Pattern instead. The High Plains Pattern also appears in the British Columbia province of Canada and north Mexico.
Icy Snow Pattern Vivillon has been reported in far northern regions of Norway and Russia and all Finland except Åland, as well as Canada's Northwest and Yukon Territories.
Jungle Pattern Vivillon has been reported in Malaysia, all Colombia minus Atlantic, Guajira and Magdalena regions, central and south Venezuela, north Peru, Panama, Costa Rica and Singapore.
Marine Pattern Vivillon has been reported in all Chile minus the Magallanes region, all Spain except the Catalonia region, Portugal, the territories of Acre, Amapá, Amazonas, Rondônia and Roraima from Brazil and Italy.
Meadow Pattern Vivillon is known to be found in large sections of France and in Catalonia (Spain).
Modern Pattern Vivillon has been found in central and southeastern United States.
Monsoon Pattern Vivillon is known to come from India, Hong Kong, Okinawa, the Tibet region of China and Taiwan.
Ocean Pattern Vivillon comes from Hawaii and Réunion.
Polar Pattern Vivillon is known to come from Alaska, the region of Magallanes from Chile, the regions of Tierra del Fuego and Santa Cruz from Argentina, the northeastern United States, and large sections of Canada. Swedish players report finding Polar Pattern Vivillon as well.
River Pattern Vivillon has been found in most regions of Australia, the Canary Islands (Spain) and several African countries.
Sandstorm Pattern Vivillon is found throughout the Middle East and Turkey.
Savanna Pattern Vivillon is known to come from various territories of Argentina, all Brazil, except Acre, Amapá, Amazonas, Rondônia and Roraima territories, south Peru, Paraguay, Uruguay and Bolivia.
Sun Pattern Vivillon has been reported throughout south Mexico, Guatemala, Honduras, Nicaragua, El Salvador, Belize, Zimbabwe and the Northern Territory of Australia.
Tundra Pattern Vivillon has been found in Hokkaido, Norway, and Iceland
