Hacking Is sleep mode+Start+Select+X supposed to work on cartridges other than ones with ntrboot?

[zacchi4k]

So, I ordered a flashcart in order to install B9S on my unmodded New 3DS, but I got curious and tried doing the sleep mode+start+select+X trick with both a retail DS cartridge and a Gateway blue card, but interestingly enough, neither of them work, in fact the 3DS just boots up in sleep mode and, after removing the magnet, the cartridge doesn't even show up until I remove and reinsert it (note that both cartridges work as they're supposed to under normal circumstances).
Is this supposed to be how it goes?

 

[Quantumcat]

The cartridge has to be specially flashed to work with the key combination.

 

[zacchi4k]

The cartridge has to be specially flashed to work with the key combination.

Oh, I see
I'll be honest, I was already freaking out thinking I might have gotten a N3DS with ntrboot somehow patched

tcrf actually says it would work with any DS cart, apparently they are wrong.

 

[Ryccardo]

tcrf actually says it would work with any DS cart, apparently they are wrong.

It may not be literally wrong but it's certainly misleading - it tries to read the DS card, fails because the rom is not a valid 3DS kernel, the hardware-level encryption is different from commercial game cards anyway, so it skips it

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also, the page ends with "[if developer unitinfo is forced] amiibos will not work" - well, retail amiibos will not work!

 

[zacchi4k]

It may not be literally wrong but it's certainly misleading - it tries to read the DS card, fails because the rom is not a valid 3DS kernel, the hardware-level encryption is different from commercial game cards anyway, so it skips it

But how does that affect my retail cart too?

 

[Ryccardo]

But how does that affect my retail cart too?

Your original game is not a 3DS kernel, isn't it?

 

[zacchi4k]

Your original game is not a 3DS kernel, isn't it?

Oh, I thought you were referring to the kernel on the Gateway Blue. Now I understand

 

[Ryccardo]

Oh, I thought you were referring to the kernel on the Gateway Blue. Now I understand

Yeah, what's usually called a flashcard firmware is what is installed directly on the card and mainly results in the rom that the flashcard appears as - or in the case of ntrboot it appears as a 3DS kernel, but a flashcard kernel is what matters for the game selector and compatibility, and is loaded from the microSD every time!

The original definitions before ntrboot (and even before the 3DS) were already not super intuitive

 

[squall14716]

"ntrboot" is just a name for the process where the 3DS boots a FIRM from a DS cart instead of the 3DS itself. An ntrboot cart is one that is flashed to work with this.

By definition, any cart that worked with ntrboot is an ntrboot cart. Regular games and most flashcarts by default are not ntrboot carts. They do not have properly signed (or sighaxed) 3DS FIRMs, so the 3DS doesn't try to boot off of it. But yes, that key combination will make the cartridge slot appear empty on the home screen anyway, until you eject the cart and put it back in (or reboot the 3DS).