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.​

 

[TheCheeze]

To be fair, there are quite a few clone cards that are not on the list, but being as they are clones, they are working. It would be nice if we had a comprehensive list of what all is clones of what, but I have yet to stumble across one.

For those that are REALLY brave and desperate you can always try flashing a supported firmware to your card using GM9 BUT AT YOUR OWN RISK OF BRICKING YOUR CARD.

 

[MrJason005]

To be fair, there are quite a few clone cards that are not on the list, but being as they are clones, they are working. It would be nice if we had a comprehensive list of what all is clones of what, but I have yet to stumble across one.

For those that are REALLY brave and desperate you can always try flashing a supported firmware to your card using GM9 BUT AT YOUR OWN RISK OF BRICK.

bricking your flashcart btw, not your 3ds

 

[TheCheeze]

bricking your flashcart btw, not your 3ds

Thanks, I tend to forget how detailed we have to spell everything out sometimes. Post edited.

 

[needhelp3ds]

Can you people read? The cards supported are the cards supported. Not on that list? Almost certainly not supported. It's not hard. Will your card be supported? Who knows! If you want it to be supported, get to reverse engineering it! Each card has its own unique bullshit, adding support for a card is not easy. If you want to use ntrboot and don't have a supported flashcart? Get one, then.

Whoa, WHOA! Calm down, buster!

 

[yacepi15]

R4SDHC Dual Core (r4sdhc.com) is confirmed to work in a future? If yes, i want to buy one before the prices get skyrocketed.

Thank you.

 

[MrJason005]

R4SDHC Dual Core (r4sdhc.com) is confirmed to work in a future? If yes, i want to buy one before the prices get skyrocketed.

Thank you.

Buy this instead: http://nds-card.com/ProShow.asp?ProID=149
It will hack your 3DS.

 

[yacepi15]

Buy this instead: http://nds-card.com/ProShow.asp?ProID=149
It will hack your 3DS.

It is for trying to boot a system with litterally no-NAND (Hardmod by a inept familiar, complete fiasco) with as little cost as possible. I do not care about time, and i can flash it with a already modded 3DS. Im just asking if it is planned to get supported by this.

Thank you.

 

[MrJason005]

It is for trying to boot a system with litterally no-NAND (Hardmod by a inept familiar, complete fiasco) with as little cost as possible. I do not care about time, and i can flash it with a already modded 3DS. Im just asking if it is planned to get supported by this.

Thank you.

The flashcart I linked is supported by ntrboot

 

[yacepi15]

The flashcart I linked is supported by ntrboot

Yes, but i heard something about that R4 SDHC that costs a half than R4i RTS will be compatible and i want to know if that's true.

I think that i've been clear this time. Thank you.

 

[TheCheeze]

There is also the option to buy used. Check around on craigslist, offerup, letitgo, and all those other quick sale apps if cost-to-benefit ratio is a thing.

 

[linuxares]

Yes, but i heard something about that R4 SDHC that costs a half than R4i RTS will be compatible and i want to know if that's true.

I think that i've been clear this time. Thank you.

Jesus you people... Have the devs announce it to be added yet?
https://github.com/kitling/flashcart_core - Here, until it say other wise. NO IT'S NOT SUPPORTED for the 100th time.

 

[yacepi15]

Jesus you people... Have the devs announce it to be added yet?
https://github.com/kitling/flashcart_core - Here, until it say other wise. NO IT'S NOT SUPPORTED for the 100th time.

"Incomplete". It appears in that list. They're developing it ATM? What means " incomplete"?

 

[Psi-hate]

"Incomplete". It appears in that list. They're developing it ATM? What means " incomplete"?

They are developing it as we speak. I'd give a rough estimate of a few days, judging by the progress made on #cakey. Don't take my word for it, as there are several devs working on several different flashcards so some carts might be available before the SDHC DualCore.

 

[yacepi15]

They are developing it as we speak. I'd give a rough estimate of a few days, judging by the progress made on #cakey. Don't take my word for it, as there are several devs working on several different flashcards so some carts might be available before the SDHC DualCore.

Okay. As i said before, time is not a problem if it is in development, so, i'll order one.

Thanks!

 

[annson24]

Didn't ask for the attitude. If you don't got anything worthwhile to say, you can piss off.

Whoa whoa, chill out. Look pal, 1. we don't know when exactly will your card arrive, and 2. we don't know when the dual core will be supported, like really, no one here knows. All the devs are saying is it's incomplete yet, it might take days, maybe weeks. Heck, when ntrboot was first announced it took months before it got released. The devs took their time to support as much flashcarts as they can before releasing yet only two got supported on the initial release. But who knows, maybe they're finishing up and will release another update any minute now.

IMO, this is one of the reasons why the devs were hesitant in releasing ntrboot. A lot of people will want to ask if x flashcart is supported or will be supported but the amount of time for the devs to spend just to support a single flashcart is too damn long. Before they realise how great their release is, impatient people with unsupported flashcarts will start ranting about it already.

Sent from my SM-G950F using Tapatalk

 

[dotarice]

hi! i saw that this is a thing now. i have a worn out acekard 2i (hw 81) that barely works.

...the only problem is that either the magnet (s) i have are too weak to detect the usa n2ds xl i recently have or i just can't find where i should place them at. i even tried using bakugan cards, old 3ds / ndsi top screens - because those were actually possible to put it out of sleep mode even when the lid is closed, and even tried partially closing the 2ds while using objects to hold the buttons.

what should i do now? has there been a way to detect sleep mode for the n2ds xl yet?

 

[yardie]

Wait did you quote yourself?

 

[yardie]

Gonna buy a new 2ds xl just to mod it
Probably gonna sell it on CL or ebay

 

[comput3rus3r]

I thought if you use powersaves you don't need a cfw 3ds.

LOL i see. Punctuation is important.

 

[failzers]

Whoa whoa, chill out. Look pal, 1. we don't know when exactly will your card arrive, and 2. we don't know when the dual core will be supported, like really, no one here knows. All the devs are saying is it's incomplete yet, it might take days, maybe weeks. Heck, when ntrboot was first announced it took months before it got released. The devs took their time to support as much flashcarts as they can before releasing yet only two got supported on the initial release. But who knows, maybe they're finishing up and will release another update any minute now.

IMO, this is one of the reasons why the devs were hesitant in releasing ntrboot. A lot of people will want to ask if x flashcart is supported or will be supported but the amount of time for the devs to spend just to support a single flashcart is too damn long. Before they realise how great their release is, impatient people with unsupported flashcarts will start ranting about it already.

Sent from my SM-G950F using Tapatalk

Don't get what this has to do with unsupported flashcarts, it IS supported, it is just not finished. I asked what would be more likely, and i got a smartass response, don't try to play it cool. you act like a smartass, i act like one back.