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.​

 

[lone_wolf323]

there are a leaked version ?if yes anyone can pm me the link please ?

No, there is nothing released or leaked. Just talk of if it dont get released there may be a leak of in once september rolls around

 

[hurrz]

His twitter has his 4chan tripcode, he frequents there all the time. Use a /vg/ archive and search by tripcode. it's the thing that starts with a ! in his bio.

Edit: Here ya go.

https://boards.fireden.net/vg/thread/182588417/#182621904

Spoiler

For what it's worth, if magnethax hasn't released by September I'll just "leak" it myself. There's delaying, and then there's just being an asshole.

It /should/ be done before then though.

Thank you very much for the link! I appreciate that!

And even if I am not sure if it is him (it only says "Anonymous" for me), a lot bigger thanks to @SciresM for being so close to the community!

 

[jerbear64]

And even if I am not sure if it is him (it only says "Anonymous" for me)

Well, that's how 4chan works.

 

[SciresM]

And even if I am not sure if it is him (it only says "Anonymous" for me)

My tripcode is in my twitter bio, for easy verification.

 

[Axorve]

My tripcode is in my twitter bio, for easy verification.

I love u dude

 

[Bateees]

turn the 3ds off and then hold A+R+L+Up and turn on. Update to 11.5 and then follow the dsi transfer guide

I forgot to mention I have already tried the system recovery mode many times and the update fails about 3/4 in.

 

[Blunt]

My tripcode is in my twitter bio, for easy verification.

I'm aware that it will take time and it's done when it's done, but I would still want to ask, if you could already tell us which flashcards will likely be supported and which will likely not be supported.

 

[Platinum Lucario]

Once it is released, I will be using it. I just hope it gets released before Nintendo patches up things on their server to negatively impact Homebrew users.

Then fingers crossed hoping that Nintendo doesn't use hyperbans on Homebrew users after it's released.

 

[Akira]

Once it is released, I will be using it. I just hope it gets released before Nintendo patches up things on their server to negatively impact Homebrew users.

Then fingers crossed hoping that Nintendo doesn't use hyperbans on Homebrew users after it's released.

This is unpatchable as already mentioned by the OP. And as for the bans, as long as someone is donating their LFCS for public use, then you dont need to worry about it too.

Also, you don't need access to HBL in order to use this.

 

[Deleted member 350372]

This is unpatchable as already mentioned by the OP. And as for the bans, as long as someone is donating their LFCS for public use, then you dont need to worry about it too.

Also, you don't need access to HBL in order to use this.

Yeah. Also, afaik Nintendo doesn't yet ban CFW users with private, unshared seeds. Am I right? Since my seed has never been banned before. Only the public ones on that chaos site everyone uses.

 

[HamBone41801]

I'm just glad dok3 confirmed ak2i in decrypt9.

 

[Deleted member 350372]

I'm just glad dok3 confirmed ak2i in decrypt9.

Where did he confirm it? Idk where to find it.

 

[HamBone41801]

check the "nds flashcard options" tab

Where did he confirm it? Idk where to find it.

 

[Quantumcat]

Yeah. Also, afaik Nintendo doesn't yet ban CFW users with private, unshared seeds. Am I right? Since my seed has never been banned before. Only the public ones on that chaos site everyone uses.

They will if you do something that causes a ban. It's just more likely with the public ones since so many people are using them.

 

[Deleted member 350372]

They will if you do something that causes a ban. It's just more likely with the public ones since so many people are using them.

Ah. Well I don't cheat in online applications like Badge Arcade or anything else detectable like breaking Miiverse rules or playing Pokémon games online before they are released. I use BootNTRSelector and other applications not involved in piracy like JKSM. Should I be okay, or should I be more careful?

--------------------- MERGED ---------------------------

check the "nds flashcard options" tab

oh okay. I'll check it out. Thx.

 

[Quantumcat]

Ah. Well I don't cheat in online applications like Badge Arcade or anything else detectable like breaking Miiverse rules or playing Pokémon games online before they are released. I use BootNTRSelector and other applications not involved in piracy like JKSM. Should I be okay, or should I be more careful?

--------------------- MERGED ---------------------------


oh okay. I'll check it out. Thx.

If another ban wave happens it is possible that you could be banned - the popular theory is it is caused by using installed homebrew while connected to the net. Possibly turning off sending system information prevents this, but we can't prove it either way.

 

[The Catboy]

I'm just glad dok3 confirmed ak2i in decrypt9.

Not the same thing. The option in decrypt9 is for another flashcart based exploit and not this one.
That one is NTRCardHAX, this one NTRBootHAX.

 

[Deleted member 350372]

If another ban wave happens it is possible that you could be banned - the popular theory is it is caused by using installed homebrew while connected to the net. Possibly turning off sending system information prevents this, but we can't prove it either way.

Alright. So I guess I'll just keep doing what I am doing then, and if my private seed gets banned, I'll use unbanmii for unbanned public seeds.

 

[Quantumcat]

Alright. So I guess I'll just keep doing what I am doing then, and if my private seed gets banned, I'll use unbanmii for unbanned public seeds.

Yep

 

[democracy]

Can you use those free Real Estate Agent Magnets that come in the mail? (fingers and toes crossed...)

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