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]

Nope, MCU is separate.
I'm pretty sure you should be able to restore this
If you boot up GodMode9 with NTRBoot, you should be able to do a CTRTransfer and restore your 3DS.
Correct me if I'm wrong though.

You are sort of wrong as godmode9's ctrtransfer won't work in that situation (yet), you have to use decrypt9wip. The same applies to fixing a n3ds 2.1 upgrade brick.

My Acekard 2i arrives today and I'll see how it goes...
I actually have a bunch of boards with missing NAND due to unlucky downgrade attempts and lack of attention back when there was no other way other than changing the whole board, so I always kept those boards after changing them.
It's gonna be a fun "project" to try to revive them
Thx for your insight, @Lia!
If anyone else has any other comments, please, I'd glad to "hear" it

Just a couple of things, first you will have to use decrypt9wip rather than godmode9 as gm9 can't do a full/forced ctrnand transfer yet. Also, you probably won't be able to run DS games or DSiware afterwards unless you can either create and format a twlnand partition or find a clean twlnand image to inject.

 

[annson24]

My Acekard 2i arrives today and I'll see how it goes...
I actually have a bunch of boards with missing NAND due to unlucky downgrade attempts and lack of attention back when there was no other way other than changing the whole board, so I always kept those boards after changing them.
It's gonna be a fun "project" to try to revive them
Thx for your insight, @Lia!
If anyone else has any other comments, please, I'd glad to "hear" it

You are sort of wrong as godmode9's ctrtransfer won't work in that situation (yet), you have to use decrypt9wip. The same applies to fixing a n3ds 2.1 upgrade brick.



Just a couple of things, first you will have to use decrypt9wip rather than godmode9 as gm9 can't do a full/forced ctrnand transfer yet. Also, you probably won't be able to run DS games or DSiware afterwards unless you can either create and format a twlnand partition or find a clean twlnand image to inject.

d0k3 already provided a fix for gm9 forced ctrtransfer. Not yet tested tho but that would be the perfect condition to test it.

I've seen it, thanks. Everyone having trouble loading GodMode9 via ntrboot -> b9s -> gm9, coudl you try this testbuild instead? Can't promise it's fixed, I can't test myself rn:
https://transfer.sh/6szKx/GodMode9-20170818-130845.zip

Sent from my SM-G950F using Tapatalk

 

[Blunt]

I have a R4 Dual core :/

GuessI'll have to buy new card ~.~

 

[mvmiranda]

I have a R4 Dual core :/

GuessI'll have to buy new card ~.~

I have some other DS flashcards: DSTwo, GW's blue card e a R4 SDHC Gold Pro RTS.
None of them work... it was a pain to find an Acekard. I ended up buying two, because... who knows

 

[yardie]

as long it come from r4ids.cn variant
and not from r4i-sdhc.com and r4isdhc.com then its' ok ?

Yes r4ids.cn

 

[zakeblast]

Can someone please compile this as is at the moment?
Honestly, i have no clue how to compile 99.9% of anything and my computer isn't exactly very useful right now anyway.

 

[dotarice]

i managed to get this to work on my friend's new 3ds xl. i am most likely going to get a better working acekard 2i though. it took me a while to get that to work. this is pretty amazing now that we have come this far.

@Redferne unfortunately that is not how it works. almost all of the time the audiences that view this thread usually forget the other posts that appear before the next page, etc. my post came before the start of page 123. eventually it's going to get lost within the newer posts around (for example, them asking how to get it to work on the new 2ds, when it was previously answered pages back) making me attempt to ask again. besides, people have answered my question(s) in other topics before without mentioning this. you can always just type in " @dotarice " and i will know regardless.

 

[PolskiWisnia]

Maybe you should buy many supported flashcards, make new labels, flash ntrboot and sell it as NTRBoot Card. That would be nice for hacking begginers that they will destroy the flashcard.

 

[DocKlokMan]

d0k3 already provided a fix for gm9 forced ctrtransfer. Not yet tested tho but that would be the perfect condition to test it.
Sent from my SM-G950F using Tapatalk

That file is for those unable to even launch GodMode9 straight from B9S or NTRBootHax, it's not an update about the CTRNAND transfer.

Also, did anyone see this from the MaxConsole forums:


Looks like M3i Real Zero may be added to the list soon.

 

[Shyro]

The other R4 or Famous linker will be better than this "M3i ect"...

 

[Izeman]

Yes, for me $20 isn't much. For others here it may be considered expensive, social class and all that jazz is a whole different topic I like to keep private. I just like to be sure that the item is worth buying and considering my flashcard may be supported in the future & ntrboot I believe is nearly a week old since it has been made public. It has a lot of things to be worked on, like when similar big projects in the 3ds hacking scene like arm9loaderhax has been released, and over time, it has gotten better and better with countless new features, improvements, and such until boot9strap became the better option for CFW.

Weel, for me it's not that $20 is too much or such; I have a couple of old DS flash cards which are obviously unsupported, so for me buying a new card is a must.
What bugs me, though, is that on all the online resellers I visited, the card costs $17-19, but the shipping costs to Italy amount to $20-25. I'm paying more for the shipping than for the card itself!
At that price, I should expect to receive it in 24h, still the wait is 5-7 business days

In the end, I've found a seller that gives free shipping so I chose that, even though I'm sure the card won't arrive in less than a month Well, I've waited months for NTRboot to release, I can wait another one. I'm just sad I won't be able to play Monster Hunter XX on the Switch using my MH Gen save file right from next friday... It'll do anyway...

 

[PolskiWisnia]

I think this site: http://3ds-flashcard.com/home/23-wood-r4i-gold-3ds.html has a free shipping with 5-7 days. If I'm wrong, I'm sorry.

 

[KytuzuEX]

What about this one? Although, it says "r4isdhc .com"
"r4i-gold .com"

 

[Yerkz]

What about this one? Although, it says "r4isdhc .com"
"r4i-gold .com"

This one doesn't work.

 

[Deleted member 381889]

What about this one? Although, it says "r4isdhc .com"
"r4i-gold .com"

Are you asking if it's compatible or not?
There is a list in the OP. That is not in the OP.

 

[mvmiranda]

What about this one? Although, it says "r4isdhc .com"
"r4i-gold .com"

It doesn't work... I have a 2016

 

[yardie]

What about this one? Although, it says "r4isdhc .com"
"r4i-gold .com"

Come on dude. Check the OP

 

[GravitySuitCollector]

Honestly, rather than an expensive flashcart like stargate or whatever it is with ntrboot, I was more waiting to see if a cheaper card would be manufactured if possible (ROM, no NAND, no microsd slot, just a cart flashed with some sort of ntrboot; maybe priced similarly to DSTT or lower; if this couldn't be done, maybe someone could explain this to me).

As things are right now, though, CFW is very accessible, and I already had purchased an ak2i in June for this anyways.

 

[failzers]

Honestly, rather than an expensive flashcart like stargate or whatever it is with ntrboot, I was more waiting to see if a cheaper card would be manufactured if possible (ROM, no NAND, no microsd slot, just a cart flashed with some sort of ntrboot; maybe priced similarly to DSTT or lower; if this couldn't be done, maybe someone could explain this to me).

As things are right now, though, CFW is very accessible, and I already had purchased an ak2i in June for this anyways.

$20 is pretty cheap.

 

[GravitySuitCollector]

$20 is pretty cheap.

Yeah, but if it could be lower, might as well ask why not make it cheaper. That is pretty much what's happening with working on adding more cards to the support list. More variety should hopefully lead to more accessibility along with a lower price gate.