Nintendo has implemented a strict policy on unauthorized game cartridges for its new Switch 2 console. This policy has led to problems for people buying used Switch 2 systems. The company is banning consoles from accessing online services if they detect the use of these unauthorized “MiG” cartridges.
Nintendo Store SF/NY has a limited number of Nintendo Switch 2 consoles daily on a first come, first serve basis (Warp Pass reservation requirement ended yesterday) https://t.co/98Rye613fG pic.twitter.com/4Ww0qo00U1
— Wario64 (@Wario64) June 23, 2025
Nintendo Switch 2 consoles restocked at Best Buy https://t.co/l1BF5UmgK1
Mario Kart Bundle https://t.co/zFCt4EjGya
Console https://t.co/ZkLwLVKgKC #ad pic.twitter.com/54YSYIEFpv— Wario64 (@Wario64) June 23, 2025
A banned console displays the error code “2124-4508” and can no longer download games, get updates, play online multiplayer, or use any Nintendo Switch Online features. Nintendo’s move aims to fight game piracy. However, it has unintended consequences for people who unknowingly purchase a used Switch 2 that a previous owner used with a MiG cart.
There have already been reports of this happening. One Reddit user reported buying a used Nintendo Switch 2 from Walmart.
Switch 2 unauthorized carts issue
Switch 2 will be restocked online at Best Buy today… at some point: https://t.co/w2ByYa5nZ6 pic.twitter.com/DPpMkKnb9U
— Nintendeal (@Nintendeal) June 23, 2025
Everything looked fine at first. However, when they attempted to set up the console at home, they encountered the ban error code. Luckily, Walmart let them return the console.
GameCube Switch Controller is still available from the Nintendo Store: https://t.co/8gGddIAt8X don't buy from scalpers! pic.twitter.com/UjFaTjQrfo
— Nintendeal (@Nintendeal) June 22, 2025
However, buying from sites like eBay or Craigslist may not allow for easy returns. This makes buying a used Switch 2 risky if you can’t confirm that the console can still connect to the internet. To avoid buying a banned console, experts suggest:
– Asking the seller for proof that the Switch 2 can access online services before buying
– Buying from reputable sellers
– Carefully checking and documenting the unboxing in case you need to return it
Stores selling used Switch 2 consoles also need to verify each one still works online before reselling them.
Overall, Nintendo’s strict policy makes buying a used Switch 2 more complicated. Buyers need to be very cautious to avoid ending up with a limited offline-only console.
Kirstie a technology news reporter at DevX. She reports on emerging technologies and startups waiting to skyrocket.























