Pokémon Platinum does not have a built-in "QR scanner" like newer entries in the series (e.g., Pokémon Sun & Moon
QR code functionality was first introduced to the main series much later in Pokémon Sun & Moon
So close the QR code generator. Open your DS Wi-Fi settings. Type in 167.86.108.126. And enjoy the full, updated, complete Pokémon Platinum experience – no squares required.
Unlike Pokémon Black 2/White 2 (which supported the now-defunct Nintendo WFC and local wireless events), Platinum relied on: