outside of the boundaries
I mean, you can detect MIG "just" using nxdumptool too... try to produce an untrimmed dump of a 1.2.0 MIG...
That was in 1.1.9, now, with 1.2.0, it correctly reports all MIG as trimmed, regardless of the used XCI... which is worrying to me!
You don't need to wonder, everything is on here https://switchbrew.org/wiki/XCI.
What I meant was maybe there is stuff inside the chip that we don't know about yet that dumpers aren't able to properly dump. Something like a fake challenge where the MIG reports TRUE when it's always FALSE or should not be responded to. I know this is a gross oversimplification.
Why would it report trimmed, even on a full dump? That makes no sense. Shouldn't it always repot untrimmed?
Because it reports trimmed when the cart fails with specific OOB reads. With 1.2.0 MIG tries to fake a correct response when the Switch does that and they partially succeeds, in fact it seems to confuse the actual Switch 2... but this new implementation fails when you try to read a large quantity of OOB data like sphaira and nxdumptool do.
Shouldn't a FULL untrimmed dump be reported as full and not trimmed. What is the expected response on a real cart?
The untrimmed dumps come in 2,4,8,16 and 32gb. The exact size of the flash memory in the official carts, it's like an image including all blank unused areas. I imagine that this will stop reading at the end of the data, whereas a mig possibly leaks something that can be read in the additional storage the SD card has or from one of the other files.
They’re easy to find: they’re in your original cart.
Just insert the cart (either the original you dumped or the MIG) and update online, they (should) behave the same.
I wouldn't worry too much about that oob issue, just use untrimmed ROMs and you'll be fine there.
It has been proved with different experiments you can replicate that using untrimmed dumps worked until firmware 1.1.9 (well except N was able to detect the MIG on S2)… with 1.2.0 they tried to implement OOB reads regardless of the completeness of the dump. And unfortunately their attempt can be detected, so with 1.2.0 OOB reads can unveil the MIG regardless of using an untrimmed or trimmed dump.
Nintendo knows the speeds of the flash chips they use for game cartridge production.
I see, I mean, we can only speculate what Nintendo uses for effectively flagging MIGs (maybe speed isn't so accurate, I'm thinking to temperature variations, to give a ban)... but OOB reads are a speculation such as speeds. We only know that 1.1.9 were detected by Switch 2, 1.2.0 seems to not be detected. And we know 1.2.0 altered OOB reads, but we don't know if that's the only change and if that's the culrpit.
I mean sure if you are using as intended. Nintendo seems to be banning people for using their backups so they can't update games though, at least on switch 2.
If you use trimmed dumps and <=1.1.9 MIG is absolutely detectable. Other than that only Nintendo truly knows.
