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.​

 

[Deleted member 350372]

So any cards there will work

I hope so... That would save me the worrying about buying a currently supported flashcart or not. I have the R4i SDHC 3DS RTS with the wifi logo. The gold 3ds rts's logo doesnt have the wifi logo on it, plus the official website on it is different.

 

[DEEP_STEEL]

Will the r4i sdhc be supported

it's not supported yet.......

 

[simbin]

What about this card?

 

[Shadicluigi]

Unfortunately not yet. I have the same type of card as you & I tried it, but it says it's not supported. I thought I had the correct card when initially thinking about it, but there were a few minor differences in the logo of the card. Idk if I should wait until my flashcard is supported in the future or buy the compatible flashcart before prices skyrocket.

Update: My card and his card is a R4i SDHC 3DS RTS.

Well rip I guess

 

[Deleted member 350372]

What about this card?
View attachment 96256

Well shit... I have the exact same card as well. But mine is 2015. :/

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

Well rip I guess

Yep... Only time will tell to see if my card will be supported or not. xD

 

[Keizel]

What about this card?
View attachment 96256

I have it and doesn't work for NTRBoot.

 

[failzers]

I hope so... That would save me the worrying about buying a currently supported flashcart or not. I have the R4i SDHC 3DS RTS with the wifi logo. The gold 3ds rts's logo doesnt have the wifi logo on it, plus the official website on it is different.

Well shit... I have the exact same card as well. But mine is 2015. :/

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


Yep... Only time will tell to see if my card will be supported or not. xD

Just buy an acekard or a r4i gold 3ds rts, i would buy an acekard because it still works after flash, cause i have both a lite and a 3ds. $20 ain't that much.

 

[Deleted member 350372]

Just buy an acekard or a r4i gold 3ds rts, i would buy an acekard because it still works after flash, cause i have both a lite and a 3ds. $20 ain't that much.

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.

 

[dodol]

any picture for R4i 3DS (r4ids variant) ?

 

[Cuphat]

any picture for R4i 3DS (r4ids variant) ?

That refers to this card: http://www.nds-card.com/ProShow.asp?ProID=149

It's from r4ids.cn and is usually referred to as the R4i Gold (likely due to their Gateway clone being named that?).

 

[yardie]

Will the r4i sdhc be supported

No bro I don't think so

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

I know i shouldnt be asking, but i want to be 100% sure about if this flashcart works or not. Would appreciate a response

Spoiler

View attachment 96211

No that won't work

 

[pixelmasher]

Does anyone know or remember if DSTT was updatable? I remember it as being a card that you couldn't update and had to buy a new one that worked on higher firmware.

 

[dotarice]

so, after waiting for an answer, i saw from another post that barely closing the n2ds does indeed work. luckily though i had a neighbor friend of mine fetch some magnets they had. only one of them - out of the many they had - worked on the n2ds xl. everything is accounted for now.



@yardie no. i was only here trying to ask for assistance. i discourage people to press reply on my posts.

 

[dodol]

That refers to this card: http://www.nds-card.com/ProShow.asp?ProID=149

It's from r4ids.cn and is usually referred to as the R4i Gold (likely due to their Gateway clone being named that?).

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

 

[Redferne]

.

If you want an answer don't put your message into quote. Most people will assume you're answering someone, won't read your message and look for the reply. Since there is none they'll assume you made a mistake and carry on.

 

[RedBlueGreen]

For the people asking R4 SDHC isn't supported yet. It'll be coming eventually but right now the development team doesn't any of the SDHC cards or the firmware last I heard.

 

[pasc]

This'll probably trigger a surge in sales of those.

Similar to the Good ol Gateway Games Zelda, Cubic Ninja etc.

Good for the R4 Team... meh.

 

[mvmiranda]

Quick sort-of newbie question. What is a MCU brick?
I have a couple of Old 3DS classic with blue screen and error code FFFFFFFF (broken NAND).

I say broken NAND because the user tried the old downgrade method with a bad SD and all that was backed up was a "dummy NAND" (only one char when viewing it in a Hex Editor). Of course the process failed (bad SD) and when a hadmod was tried that dummy NAND was written, rendering the console NAND completely bad (meaning no OTP, no firm, nothing inside of the chip is valid).

Is this considered MCU brick?

Thanks!

 

[Deleted member 381889]

Quick sort-of newbie question. What is a MCU brick?
I have a couple of Old 3DS classic with blue screen and error code FFFFFFFF (broken NAND).

I say broken NAND because the user tried the old downgrade method with a bad SD and all that was backed up was a "dummy NAND" (only one char when viewing it in a Hex Editor). Of course the process failed (bad SD) and when a hadmod was tried that dummy NAND was written, rendering the console NAND completely bad (meaning no OTP, no firm, nothing inside of the chip is valid).

Is this considered MCU brick?

Thanks!

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.

 

[mvmiranda]

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.

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