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.​

 

[hellionz]

Good news!!! now we can solve bricks without hardmod....so much business are fuked by this xDDD

Greetings and really nice job!!!

EDIT:any posibility of recover the flashcard after end the process? ...i have an DSTWO and dont want to destroy it for this

 

[Majickhat55]

I bought it on a small online store here in Brazil, but it is a good store, so I don't think it is fake. I'm not saying it's impossible, of course.

Could just be a dying card too, electronics are hardly ever perfect.

 

[Yerkz]

Could just be a dying card too, electronics are hardly ever perfect.

Unfornately, but I already contacted the store owner and he said that he would give my money back if I want, but first I'll try to recover it using a friend's DS Lite.
I'm just afraid that I bought a N3DS XL and if it come on 11.4 or above, I'll have to pay someone to install B9S because my R4 is broken.

 

[Shyro]

Good news!!! now we can solve bricks without hardmod....so much business are fuked by this xDDD

Greetings and really nice job!!!

EDIT:any posibility of recover the flashcard after end the process? ...i have an DSTWO and dont want to destroy it for this

Can we recover a acekard 2i or R4i too please ?

 

[Majickhat55]

Unfornately, but I already contacted the store owner and he said that he would give my money back if I want, but first I'll try to recover it using a friend's DS Lite.
I'm just afraid that I bought a N3DS XL and if it come on 11.4 or above, I'll have to pay someone to install B9S because my R4 is broken.

There are tons of people offering to do it for free (myself included). You'd pretty much just have to pay for shipping unless you can find someone local.

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

Can we recover a acekard 2i or R4i too please ?

You just reflash the backup firmware you dumped before starting. It's in the guide.

 

[Quantumcat]

There are tons of people offering to do it for free (myself included). You'd pretty much just have to pay for shipping unless you can find someone local.

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


You just reflash the backup firmware you dumped before starting. It's in the guide.

He's from Brazil

 

[Majickhat55]

He's from Brazil

Yeah I saw where he was from Lol. There are plenty of people around offering it. I don't know if there is one in Brazil specifically off the top of my head but shipping is always an option worldwide.

 

[Yerkz]

He's from Brazil

Yes, and here I've never found anyone who could do this for free, they teach you or do the job for 50 reais (it's about 16 dollars)

 

[Quantumcat]

Yes, and here I've never found anyone who could do this for free, they teach you or do the job for 50 reais (it's about 16 dollars)

Yeah, and anything to do with video games is very expensive there, right? I can't imagine you'd feel very safe shipping something so expensive through the post to a stranger.

 

[YoloSwagDux]

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

yeah you dont but i thought you meant you dont need r4 if you have powersves

 

[Majickhat55]

Yes, and here I've never found anyone who could do this for free, they teach you or do the job for 50 reais (it's about 16 dollars)

Sometimes I wish we could teleport Lol. I see so many people needing assistance but they're all far away and everyone else just tries to profit off knowing they might not be able to do it themselves. Le Sigh. Not to mention the shipping would probably cost you about that much anyway, unless someone just sent you their *HaX* card instead of you sending your console to them. Trust is still an issue though, when no money is serviced.

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

I know back in the early OOT3D days we had like 2 carts that were "donated" and people were using a list to ship from one person to another so we could all install *HaX* for cheap/free. Though, I think the days of selfless help are over if I were one of those people that were buying bulk I'd 100% donate one just for this purpose.

 

[Yerkz]

Yeah, and anything to do with video games is very expensive there, right? I can't imagine you'd feel very safe shipping something so expensive through the post to a stranger.

Yeah, but I've done this once (when I got my 2DS I didn't understand too much about A9LH and it was on 11.0, so hardmod was the only option) and everything was ok. Unfornately the guy who did the service for me does not work with this anymore, and now I know how to do this, so I'd like to do without spending money.

Just to you know how the price of games are here, I paid 1055 reais on the N3DS XL, and it's about 335 dollars!

 

[Quantumcat]

Yeah, but I've done this once (when I got my 2DS I didn't understand too much about A9LH and it was on 11.0, so only hardmod was an option) and everything was ok. Unfornately the guy who did the service for me does not work with this anymore, and now I know how to do this, so I'd like to do without spending money.

Just to you know how the price of games are here, I paid 1055 reais on the N3DS XL, and it's about 335 dollars!

Holy crap! How does that compare, say, to the average weekly income?

 

[Yerkz]

yeah you dont but i thought you meant you dont need r4 if you have powersves

They're a little hard to find here, and I don't want to buy it just to use once. The R4 I can use to play DS games after installing B9S, but the powersave would be useless after it.

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

Holy crap! How does that compare, say, to the average weekly income?

I don't know exactly since I'm just a student (I'll start at university next week), but the price of my N3DS is a little bigger than the minimum wage here

PS: sorry if something is wrong, I'm regular at english but not fluent

 

[Sumea]

This is amazing stuff.
I have both acekard 2i and R4i Gold. I am glad that probably two of the most popular flashcarts from recent past (and I was team CycloDS IT RULED DANGIT!) are applicable for this. I am especially amazed that acekard 2i is actually usable even with this hack which I had to test to believe and sure enough it boots AKAIO when booted normally and makes my friends' 3DS systems boot GodMode9 if I want it to - so that aspect is also great, this acekard is a keeper for sure.

I even tried to rescue a weird case of friend's seemingly bricked 3DS but CTRtransfer did not save it and only thing a Luma3DS installation gave was error code for the problem - crash on Menu process, so something is causing the Menu to crash right away and it is most likely hardware - well, TRIED! And it would not been possible to even try without this. I hope I could save some bricks IF ANYONE AROUND ME EVER MADE ONE BUT DANGIT I WAS AROUND SO THERE IS NO BRICKS.

 

[Snooli]

After I fix my N3DS, I'll propably buy a few R4i Dual-cores and let them venture around europe.

 

[hellionz]

any posibility of DSTWO or this one would be compatible?

http://www.nds-card.com/ProShow.asp?ProID=146

greetings

 

[yardie]

any posibility of DSTWO or this one would be compatible?

http://www.nds-card.com/ProShow.asp?ProID=146

greetings

The sdhc is not compatible. It's been asked countless times now

 

[hellionz]

The sdhc is not compatible. It's been asked countless times now

but would be compatible? and DSTWO?

greetings

 

[Columbo2811]

but would be compatible? and DSTWO?

greetings

https://gbatemp.net/threads/ntrboot-released.472585/page-114#post-7520016