Nintendo has taken further measures to prevent Nintendo 3DS users from downloading free games from its servers. Prior to this, users were able to download games they had previously purchased, but due to the 3DS being compromised by hackers, anyone was able to grab whatever they liked using unauthorized tools such as Freeshop. However, this method is no longer available as per Nintendo’s actions. To learn more about this change, click here.
Source: Torrent Freak