Whether you are looking to play on a flashcart, a modded 3DS, or a PC emulator, here is the technical breakdown for installing the USA/Europe version.
Authentic cartridges are black (IR-compatible) and have a product code starting with TWL- (e.g., TWL-IREO-USA). pokemon white version 2 usa europe ndsi enhancednds install
Dumping process (3DS + GodMode9):