It's here!

​

Info

@Normmatt has created a way to run B9S .firm files from bootrom via a DSi Flashcard and a magnet! This works on every 3DS on any firmware version.

For installation without a PC, user @TheCyberQuake has created a pack which will automatically install B9S and copy over essential starter homebrew from the flashcard's SD to the 3DS's. This will mainly be used for PC-less B9S installations. If you have a PC with you, use 3ds.guide. Read more here: https://gbatemp.net/threads/481141/

How does this work?

This works because of a flaw in the bootrom. Before the bootrom boots the NAND, it checks to see if Start+Select+X is held down, and if the shell is closed. If these requirements are met, it will boot an NDS cartridge from the bootrom. This give that cartridge bootrom access. You might be wondering how you'd hold down buttons while the shell is closed, and why you need a magnet. If you put a magnet in a specific spot on the 3DS, it will go into sleep mode. Using this, you can boot the NDS cartridge with the buttons held down while in sleep mode! Using a reflashable flashcard, you can boot B9SInstaller using the flashcard, and easily install it on your 3DS.

The 2DS doesn't need a magnet since a switch puts it to sleep instead of a magnet.

What does this mean?

1. Any 3DS model on any firmware can be hacked with minimal effort
2. You can unbrick any 3DS model from any type of brick.
   - Remember, you don't need a NAND backup for this. Just do a CTRTransfer.
   - This does not apply to MCU bricks.
3. Even consoles with fried NAND, or even the NAND chip physically removed, can use this

This is incredibly impressive stuff, and will most likely be released soon! edit: now!

FAQ

Q: Can Nintendo patch this?
A: Nope! Not without a new hardware revision.

Q: My flashcard is blocked by my firmware! Can I still use this?
A: Yes! The flashcard blacklist is not enabled on the bootrom.

Q: Why can't this work with my flashcard?
A: The installation requires you to flash NTRBoot to the flashcard's nand. Most DS flashcards, such as the original R4, have a ROM, which is not flashable.

Q: Can I install NTRBoot on my flashcard without another 3DS system?
A: If you can run NDS roms on your 3DS with it, then yes. If it's blocked on your 3DS version, then you'll need another 3DS system to use it.

Q: Will my 3DS flashcard work?
A: No, only the NDSi flashcards listed above.

Q: Will any other flash cards work?
A: Only the ones listed in the OP. However keep in mind that flashcards such as the DSTT, Supercard DS2 and R4 SDHC Dualcore are planned to be supported in the future.

Q: I tried to do this with my cartridge and it didn't work?
A: It doesn't work with regular DS cards.

Q: Can I unbrick from a ____ brick?
A: Considering the card has access to the bootrom, yes! This can unbrick any brick (except MCU), unless you've taken a knife to the motherboard.

Q: Can I install B9S on the latest firmware with this?
A: Again, since the card has access to the bootrom, you can do this easily! Just plug in your flashcard, boot up using the magnet and button combination, and install.

Q: Does this work on the New Nintendo 2DS XL?
A: Yes!

Release
Guide
Free NTRBoot Flashing
Free B9S Installations

Here is SciresM's post about this

Please see SciresM's presentation on bootromhax.​

 

[RazorX2014]

would my gateway blue cart work?

 

[astronautlevel]

would my gateway blue cart work?

Is it in the supported cards list?

 

[Lush]

There is a rumured update coming from gateway tomorrow. No idea if it will include ntrboothax support, but I hope it does...

 

[linuxares]

There is a rumured update coming from gateway tomorrow. No idea if it will include ntrboothax support, but I hope it does...

I believe it when I see it.

 

[drwhojan]

so ill just have to put it on sleep mode? using the switch? cause im trying to do it. but nothing appears on screen using my tested ak2i on my New 3dsxl?

Hint..

 

[Axorve]

I we can convert R4I ultra into aK2i legit, we can convert AK2I official (but other rev) into good rev ?

 

[Xeonhawk]

Have a R4 dual core from 2015 so I don't need to purchase anything new, I just have to continue waiting

 

[Lush]

I believe it when I see it.

I'm as skeptical as you are... Here is the source...

http://www.maxconsole.com/threads/g...re-release-coming-soon.43938/page-25#comments

 

[jerbear64]

I we can convert R4I ultra into aK2i legit, we can convert AK2I official (but other rev) into good rev ?

No, and both revisions are supported anyways so it doesn't matter.

 

[DatakadjrBkajsbr]

No, and both revisions are supported anyways so it doesn't matter.

It is matter i got propably official acekard 2i ( HW 81 and akaio 1.9.0 working) and ntr boot flasher is not detecting card as hw 81...

 

[linuxares]

It is matter i got propably official acekard 2i ( HW 81 and akaio 1.9.0 working) and ntr boot flasher is not detecting card as hw 81...

It does after a while, if you retry and retry. That's what I did! It now works like a charm.

 

[Baoulettes]

I see so still no plan to support this one :/

To bad that the only one I have

 

[linuxares]

It is matter i got propably official acekard 2i ( HW 81 and akaio 1.9.0 working) and ntr boot flasher is not detecting card as hw 81...

https://cdn.discordapp.com/attachments/225556031428755456/345923925433253888/ntrboot_flasher.firm - try this one. It seem to fix HW81 issues.

 

[jerbear64]

https://cdn.discordapp.com/attachments/225556031428755456/345923925433253888/ntrboot_flasher.firm - try this one. It seem to fix HW81 issues.

This build is no longer necessary now that the upstream flasher has been updated.

 

[linuxares]

This build is no longer necessary now that the upstream flasher has been updated.

Ah yes, testing it now.

EDIT: Nah, same issues.
EDIT2: Tried cleaning my contacts. It instantly found it now. Luck or they were dirty?
EDIT3: It's more stable. But I need to do everything twice. First go to "Dump Flash" and it will fail. Then I do "Dump Flash" again and it will find the Acekard 2i HW-81.

Same thing with inject, couldn't find it first. Did it again and it found it. So it's more stable however.

 

[subcon959]

hahahahahahah wrong

Not really, Powersaves will eventually be an alternative to CFW.

 

[Creatable]

Not really, Powersaves will eventually be an alternative to CFW.

NTR right now is basically just as useful as the DSIware exploit. It's funny how you have to have a hacked 3DS... to hack another 3DS. Either way, I still don't like it at the moment. We need an update that lets you not have to use another 3DS.

 

[VashTS]

so turns out my successful dump and flash was a failure, luckily no brick.

the dump was all FFFFFFs but the card still works as normal.

i can't get it to dump again, tried another dozen or so times. updated to 0.1.1 release as well.

 

[subcon959]

NTR right now is basically just as useful as the DSIware exploit. It's funny how you have to have a hacked 3DS... to hack another 3DS. Either way, I still don't like it at the moment. We need an update that lets you not have to use another 3DS.

It's not perfect, but it can be done cheaply if you get a used Powersaves and R4. The second 3DS is not the only way to do it.

 

[Creatable]

It's not perfect, but it can be done cheaply if you get a used Powersaves and R4. The second 3DS is not the only way to do it.

Well then they should've worked on that more before release. People were excited due to infinite Homebrew (since it works on all versions) and unbricks, but what's so exciting about a release of a program that basically does the same thing as the DSIware exploit? We could've just done that while waiting.