Nintendo Bans Switch 2 Consoles Using Mig Flash

Nintendo has started banning Switch 2 consoles from all online services for users detected using the Mig Flash cartridge (formerly Mig-Switch), a device designed to load game ROMs from a microSD card, even if only legal backups are played. The bans, which do not affect Nintendo accounts, restrict access to multiplayer, the eShop, YouTube, and cloud saves. Nintendo's updated anti-piracy measures use unique identifiers and cryptographic certificates, sometimes resulting in false positives and broad bans. The Mig Flash team maintains that their device is intended for legitimate backups, but Nintendo's stricter Switch 2 security and firmware updates have increased detection and enforcement. These actions highlight Nintendo's uncompromising stance against modding and digital backups, regardless of user intent. The policy has prompted debate among users who argue for legal personal use of backup devices.