
I didn't pay much attention to this at first as I have no interested in backups / jailbreaking on current systems. I only do that kind of stuff on systems that have long gone out of production / support.
But over the last few days I learned that this device might have a huge impact on people that buy used games, though.
Switch cartridges all have some kind of unique certificate and ID. This is for instance used for the 50c or whatever eShop reward that can be redeemed once for each physical cart. Nintendo apparently also bans cart IDs that have been dumped and put online or IDs that are used by multiple consoles simultaneously. So far, this has not been a huge issue. A jailbroken Switch or an emulator does not really care about certificates, valid IDs, checksums etc. From what I understand those things are just stripped out from the ROMs you'd find online and hacked consoles generally don't go online or transmit cart IDs to Nintendo, same for emulators, why would they, make sense, etc.
Now this changes with the MIG Switch. The big appeal of this device is that it works on any model of Switch without any modifications, jailbreak etc. It just looks like a legit cart to the console. So of course it needs a valid certificate and ID etc. because a real, unmodified system requires those to launch the games. The MIG Switch also comes with a dumper and the idea is that you dump your own games. So far so good.
The issue is of course that some people will dump their game collection and then sell it on eBay. Or they'll borrow games from friends or the local library and dump them before returning. Now you have unsuspecting people with legit, unmodified consoles and genuine physical games that are at risk of a ban. If the people using the same cart ID ever go online at the same time Nintendo has quite a few options they might use and apparently have used in the past:
- Put the cart ID on a blacklist so it'll never work again on an unmodified Switch
- Ban your console ID from connecting to the network, receiving updates, etc.
- Ban your Switch account, locking you out from multiplayer, title updates, subscriptions, digital content, backed up online saves etc.
I really don't know how they'll handle this. Even if they find some way to detect the MIG Switch cart and distinguish it from original carts this will likely be fixed in the next revision and just pushes the issue down the road. They could just give up. They could also start banning lots of completely innocent people. This would basically destroy the 2nd hand Switch market and tank resale value of games and make the option of used purchases really unattractive to people. Maybe Nintendo would actually appreciate that. If they do that there will certainly be lawsuits and eventually a class action, but that would take many years to resolve. In the meantime every used Switch game is a potential time bomb that could get itself, your console or your account banned at any time.
It's also a question how this will affect the Switch 2. Maybe Nintendo will remove backwards compatibility for physical games because they don't want pirated content and a potential security exploit vector present in their next console from day 1?
A rather grim outlook I'd say.