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.​

 

[d3m3vilurr]

do you know how to use this? https://github.com/d3m3vilurr/ak2i_ntrcardhax_flasher/releases i see people posting about it, but nobody saying how to actually use this

1. just download nds & put sdcard of ak2i.
2. boot on nds or ndsl
3. load and flash. that's it.

 

[Lush]

:s I'm hoping they didnt just miss my order, ordered a card from them about a week ago, made payment but haven't received any messages back yet regarding payment or order. I placed another order not too long ago, so i'm hoping that one gets processed quicker

They were very quick to reply with PayPal info right after my order and again after I made the payment. I paid the $3 CAD for tracking. Hopefully your order works out fine...

 

[Adran_Marit]

They were very quick to reply with PayPal info right after my order and again after I made the payment. I paid the $3 CAD for tracking. Hopefully your order works out fine...

They were quick with the here's the email but I havent heard anything since, and I have tried contacting them again. But I'm hoping it works out fine as well

 

[gamesquest1]

I was just curious. It's a deep demon of mine getting magnets near electronic devices.

I guess I best not suggest using an electro magnet then, but really that's exactly what happens anyway by closing the lid, the speakers are magnetic and trigger sleep mode

 

[ganons]

Sure, you can use it, if you happen to have a flashcart with ntrboot flashed to it already. There is not currently a method of flashing ntrboot to a cart without a CFW 3DS though.

Is this ntrboot a onetime install or do you need the flashcard in the console throughout?

 

[Snooli]

Is this ntrboot a onetime install or do you need the flashcard in the console throughout?

Only to boot the first time during install

 

[Jecoconono]

Where do I put the magnet on n3dsxl? I put it at the same place on the video but it didn't trick my 3ds into thinking the shell was closed. Either that or I'm using the wrong kind of magnet, which I doubt I'm doing.

 

[Pandaxclone2]

Any word on R4i 3DS RTS flashcart working with this, or no? I'm planning on getting an Acekard 2i anyway just in case, but it'd be nice if a cart I already own should work.

 

[gudenau]

Cool, I can unbrick my 3DS that had it's CPU fall off!

(Kidding)

Good work to the devs, got a card on it's way.

 

[Slattz]

Where do I put the magnet on n3dsxl? I put it at the same place on the video but it didn't trick my 3ds into thinking the shell was closed. Either that or I'm using the wrong kind of magnet, which I doubt I'm doing.

It goes here, I had the same problem as you lol

Spoiler: image

 

[Jecoconono]

It goes here, I had the same problem as you lol

Spoiler: image

Ahahaha, I just checked and it worked! I was using a magnet the wrong polarity.

The only magnet I have... is a bakugan toy magnet.


Hardmoders beaten by a kids toy, lmao.

 

[Snooli]

Where do I put the magnet on n3dsxl? I put it at the same place on the video but it didn't trick my 3ds into thinking the shell was closed. Either that or I'm using the wrong kind of magnet, which I doubt I'm doing.

exactly oposing the speaker. normally the hall detects the speaker, so there's where it is.

 

[Jecoconono]

who would win : hardmodders that spend a ton of time figuring out how to hack the 3ds or

a god damn bakugan (the magnet on the bottom)

 

[Slattz]

who would win : hardmodders that spend a ton of time figuring out how to hack the 3ds or

a god damn bakugan (the magnet on the bottom)

Ironic because the 3ds had to be hacked and the arm9 bootrom had to be dumped before this method was even known about. So the hackers won in both cases.

 

[Jecoconono]

Ironic because the 3ds had to be hacked and the arm9 bootrom had to be dumped before this method was even known about. So the hackers won in both cases.

They're both different kinds of hackers. This will help tons of people but still won't be available for people without flashcarts. Theres a sale going on at a store that sells r4i gold rts for 16$ (discounted from 35$) however I'm waiting for a steam refund to be able to afford it, and if the sale stops before I receive the funds then I'm SoL. Then we'll need hardmods again.
tl;dr hardmods are still required for people w/o flashcarts still

 

[SirAileron]

With 99 pages already, I feel like this has probably been asked, but is there any reason behind why this has to be flashed on a 3DS? Is there some sort of special access that can't be done via the method used to normally upgrade the cart's firmware, like with using a DS/Lite?

 

[.Chris]

I'm sorry for kinda spamming the thread, but I don't see the same issue from others.

I'm getting "ChipID: FFFFFFFF, HW Rev: FFFFFFFF"

Edit: Nvm, i just started ejecting/inserting over and over again, and it worked. lmao.

 

[GerbilSoft]

With 99 pages already, I feel like this has probably been asked, but is there any reason behind why this has to be flashed on a 3DS? Is there some sort of special access that can't be done via the method used to normally upgrade the cart's firmware, like with using a DS/Lite?

You can, in fact, flash this on a DS or DS Lite. (DSi may have issues, though.)

See @d3m3vilurr's post: http://gbatemp.net/threads/ntrboot-released.472585/page-99#post-7513389

I'm sorry for kinda spamming the thread, but I don't see the same issue from others.

I'm getting "ChipID: FFFFFFFF, HW Rev: FFFFFFFF"

It isn't detecting the cartridge. DS flash carts are notorious for not quite fitting in the 3DS card slot.

https://wiki.gbatemp.net/wiki/Solving_Acekard_2i_Contact_Issues

 

[SirAileron]

You can, in fact, flash this on a DS or DS Lite. (DSi may have issues, though.)

See @d3m3vilurr's post: http://gbatemp.net/threads/ntrboot-released.472585/page-99#post-7513389

My man! I still have my DS lite and the acekard that I packed carboard paper into.

 

[Axorve]

I need to update my AK2i, my 3DS dsi don't find him ( never updated my card ) and decrypt9 too. How i can?

Edit: with ntr_luncher my linker make white screen, maybe it's bricked.