A wave of Nintendo Switch 2 users have reported sudden bans from accessing the console's online services, with many attributing it to their use of the MIG Switch cartridge.
The MIG Switch is a flash cartridge designed to store and play copied Nintendo Switch 1 games - functionality Nintendo expressly prohibits, despite user claims of only backing up legally purchased titles.
Regardless of intent, inserting the MIG Switch appears to trigger identical consequences. Affected users report receiving permanent online bans that block access to multiplayer gaming, the eShop, and other Nintendo services, prompting urgent warnings within the community.
"My Switch 2 test unit got banned after using the MIG Switch with legally backed-up game copies, proving Nintendo's detection capabilities," one user posted online, sharing multiple corroborating reports.
"Reddit communities are seeing identical cases. I strongly advise against MIG Switch usage - already risky on Switch 1 and demonstrably worse on Switch 2."
"My Switch 2 test has been banned, after using the mig switch with perfectly legal dumps of my own cartridges, so it would seem that Nintendo can detect something" "Similar reports on reddit are starting to come in." "I strongly..." pic.twitter.com/btzjQYJzE4 — SwitchTools (@SwitchTools) June 16, 2025
Another Reddit user described testing a MIG Switch once with legitimate backups before receiving Nintendo's ban.
"I briefly inserted my MIG Switch into my NS2," they explained. "It displayed game titles but wouldn't load content. The system attempted downloading a title update before failing. Perhaps that triggered the ban? This occurred over a week ago, and I've only used legitimate cartridges since."
Banned consoles display error code 2124-4508 when attempting online functions: "The use of online services on this console is currently restricted by Nintendo."
YouTube channel Scattered Brain demonstrated that these bans persist across Nintendo accounts and appear hardware-based, though consoles remain functional offline without becoming completely disabled ("bricked").
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Nintendo foreshadowed these actions in May when updating its Account Agreement ahead of Switch 2's launch. The revised terms explicitly prohibit using "hardware or software not operating as documented/intended," warning this could render "Nintendo Account Services and/or the applicable Nintendo device permanently unusable."
While Nintendo issued clear warnings, the enforcement appears to be catching some users by surprise.
"My Switch 2 got console-banned inexplicably!" lamented one Reddit user last night. When questioned about MIG Switch usage, they clarified: "I only attempted testing it out of curiosity - it never actually worked."
IGN has reached out to Nintendo for official comment.
