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.​

 

[nl255]

Well, I already posted this in another thread but as AK2i seems to be one potential option for this sharing this again: https://gbatemp.net/threads/unbricking-acekard-2i-w-3ds-and-a9lh-cfw.421745/

It helped me revive one card I bricked due to updating o3DS FW before updating the AK2i card.

However that is almost certainly obsolete since it refers to things like patching twl_firm which are no longer necessary. I bet you could run ak2ifw_update_3ds43_dsi144_onDSL.nds directly from twloader and it would work.

 

[Bullseye]

However that is almost certainly obsolete since it refers to things like patching twl_firm which are no longer necessary. I bet you could run ak2ifw_update_3ds43_dsi144_onDSL.nds directly from twloader and it would work.

Well, if you check the reply by Apache Thunder, he made an updater in .cia format that runs from the home menu. That allows you to avoid switching cards in he unbrick process.

 

[Duckling]

So this wont work on my 3DS that got bricked as a result of installing the N3DS FW on O3DS?

 

[Deleted User]

So this wont work on my 3DS that got bricked as a result of installing the N3DS FW on O3DS?

Yes it will

 

[Duckling]

Yes it will

Okay I'm hyped

 

[nl255]

Well, if you check the reply by Apache Thunder, he made an updater in .cia format that runs from the home menu. That allows you to avoid switching cards in he unbrick process.

No, the whole point of twloader is that it lets you use the 3ds sd card as if it were a ds flash cart (though retail game compatibility is low but that doesn't matter for something like the ak2i updater/unbricker). So you throw the updater/unbricker .nds file on your 3ds sd card in the proper folder, run twloader, choose the right options, and load the unbricker from there. So no need to mess with converting or installing or switching.

 

[Halvorsen]

Well @LinkSoraZelda said it was confirmed. That's why I apologized.

Anyways, enough of this apologizing stuff. I think that I am going to stop posting hype in this thread and keep that for release.

It is not confirmed.

 

[Shad0w136]

It is not confirmed.

The release isn't confirmed, but the method is, from what i've been reading.

 

[Halvorsen]

The release isn't confirmed, but the method is, from what i've been reading.

We're talking about 2.1 bricks on new 3DS, which is more than likely simply a CTRNAND brick caused by the automatic firmware downloads while in Sleep Mode.

 

[Shad0w136]

We're talking about 2.1 bricks on new 3DS, which is more than likely simply a CTRNAND brick caused by the automatic firmware downloads while in Sleep Mode.

Ahhh, my mistake, I don't have a N3DS, but I do hope those stuck do find a good resolution

 

[Deleted User]

It is not confirmed.

when forgetting one word changes the whole meaning of the post.

Yeah I meant to say not.

 

[IssMare]

Us: Not releasing yet because we don't want people to have to buy a bunch of expensive flashcarts if it can work on more types/cheaper ones.

People: Quick, buy up expensive flashcarts in advance, despite not being able to use it for a while anyway! Also, let's insist certain types of carts work, despite not actually knowing (and some of what I'm seeing people say is wrong)!

Nice.

This should go into the first post/s

 

[the assaf]

Remember there might be a price icrease after magnetHAX who'll be released.

 

[Snooli]

This is a solution to all NAND related bricks. Nothing more. If there's anything else dead on the motherboard, thus won't save you. Luckily, most bricks are NAND related.

 

[Quantumcat]

Remember there might be a price icrease after magnetHAX who'll be released.

It's called NTRBoothax

 

[Snooli]

It's called NTRBoothax

Yes, but you must agree that MagHax sounds way better.

 

[Quantumcat]

Yes, but you must agree that MagHax sounds way better.

True, but the magnet isn't even used in the case of 2DS consoles.

 

[TarkinMX]

Great job, definitely watching this thread!

 

[ccw0000]

Finally i can see the dream to install b9 in my 3ds with the version 11.4...

 

[primera008]

THIS IS GONNA BE TOTALLY AWESOME IF IT WILL ACTUALLY WORK. HELPS A LOT OF PEOPLE WITH BRICKED 3DS THAT CANNOT BE FIXED FOR A VERY LONG TIME. PLEASE PLEASE MAKE THIS WORK PERFECTLY SIRS! TIA & GL