Nintendo has always been extremely aggressive when it comes to the issue of video game piracy and their stance is unlikely to change anytime soon. Some users which have been using MiG flash cartridges have been reporting on social media that they have been permanently banned from accessing any of Nintendo’s online services. Some MiG flash cartridge users aren’t playing pirated games, as the device can be used as a backup and development device, though obviously some are using it to play pirated Nintendo Switch games. It is not clear how many people have been affected, but it sounds best to stay well clear of using MiG flash cards just incase you are one of the unfortunate ones.
Nintendo banning some MiG flash cartridge users
They play with fire and now they got caught using it on the system. I don’t know what a Mig switch is or who made it.
Basically, A MIG Switch allows you to download backed-up copies of multiple games onto one cartridge. Admittedly, it can be a good way for people who want the surety of a physical cartridge without the hassle of housing or carrying an entire pack full of game carts. This doesn’t necessarily have to be pirated software; you can dump copies of legitimately bought software.
But Nintendo takes a dim view even of this, piracy or not. From the manuals of their games, printed since the SNES:
“Copying of any Nintendo game is illegal and is strictly prohibited by domestic and international copyright laws. ‘Back-up’ or ‘archival’ copies are not authorized and are not necessary to protect your software. Violators will be prosecuted.”