: Download the v1.05 patch from reputable sources like the official GBAtemp thread . Apply the Patch :

Elias reached out to touch the screen, his fingers brushing against a surface that felt less like glass and more like cold, polished gold. The "Update" was complete.

The update adds the (available at the Pokéathlon Dome) and Choice Scarf (Battle Frontier prize), which were glitched in v1.0.