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.​

 

[DeslotlCL]

Pretty sure it's only the .firm file, as I've followe 3ds.guide. As I stated before, the 3DS has yet to turn on wiht this SD card

If you have "enable exception handler" enabled, try disabling it (i know it doesnt affect anything but just in case) or try to go back to a previous build and try again.

 

[tonyrayo]

I also have a M3 DS Real but the page written on the cartridge doesn't exist anymore to download the files to make the cart work, any idea ?

I recommend downloading RGM's Multi-Cart and extracting the M3DS Real folder to a microSD card. NOTE: This will just restore the functionality of the cart to be used for Nintendo DS/DS Lite gaming but not with NTRBoot (for now).

 

[_Emmo]

I recommend downloading RGM's Multi-Cart and extracting the M3DS Real folder to a microSD card. NOTE: This will just restore the functionality of the cart to be used for Nintendo DS/DS Lite gaming but not with NTRBoot (for now).

Alright, tried it with ak2i_ntrcardhax_flasher.nds and keep getting this message
ChipID : 00000FC2
HW Rev: 46464646

well I don't know what to do with that information ^^

 

[tonyrayo]

Alright, tried it with ak2i_ntrcardhax_flasher.nds and keep getting this message
ChipID : 00000FC2
HW Rev: 46464646

well I don't know what to do with that information ^^

There is nothing to do yet (since M3DS Real is not among the supported cards), however I just bought a used N3DS (paid too much compared to eBay but the person was a friend ) which should make it across the country later this week, so I will be able to test on real hardware soon after.

M3DS wird zur Zeit noch nicht unterstützt. (I apologize for butching the German language)

 

[Lindorel]

0x9089: INTEL 28F160B3T (can't find specific datasheet) FUCK!!!

 

[spkuja]

The newly compiled version still doesn't work with DSTT

 

[LuigiXL]

The newly compiled version still doesn't work with DSTT

It depends on the chipset. I have 2 different ones (physically) that both don't work yet. Check with dstt fake checker.

 

[annson24]

It depends on the chipset. I have 2 different ones (physically) that both don't work yet. Check with dstt fake checker.

No, even with the compatible flashchips it still doesn't work.

Sent from my SM-G950F using Tapatalk

 

[RedBlueGreen]

Pretty cool that DSTT is getting implemented, even if it's not working yet. Makes me think we might see R4 SDHC compatibility soon since it's a DSTT clone.

 

[RY0M43CH1Z3N]

I'll wait until the DSTT support. Thanks for you for your incredible effort

 

[Deleted member 381889]

I'll wait until the DSTT support. Thanks for you for your incredible effort

Some DSTT flashchips are already working

 

[annson24]

Some DSTT flashchips are already working

They still aren't, I'm afraid. The code still needs more bug squishing.

 

[RY0M43CH1Z3N]

Some DSTT flashchips are already working

Without another hacked 3DS or original/Lite DS?

 

[Deleted member 381889]

Without another hacked 3DS or original/Lite DS?

No, you need to have another system or powersaves for a DSTT, as they don't run NDS roms on 11.5.

 

[Ramses]

Without another hacked 3DS or original/Lite DS?

from my current understanding, if the DSTT is working, it's only on hacked 3DS systems only at the moment.

 

[RY0M43CH1Z3N]

No, you need to have another system or powersaves for a DSTT, as they don't run NDS roms on 11.5.

How i can use it with powersaves?

 

[Deleted member 381889]

How i can use it with powersaves?

The method isn't ready yet

 

[spkuja]

They still aren't, I'm afraid. The code still needs more bug squishing.

My card is an official Macronix MX29LV400B (checked with the fake checker) which is listed as a compatible card but still nada. I think you're right, some bugs still need to be squished!

 

[RY0M43CH1Z3N]

The method isn't ready yet

Ouch!

And with other nds or 3DS i can do it with my DSTT? And, How?

EDIT: Thanks for the repplies and the explains.

 

[Deleted member 381889]

Ouch!

And with other nds or 3DS i can do it with my DSTT? And, How?

Wait until the flasher has been updated to fully support the DSTT. Then follow one of these guides.
NDS/NDS Lite
Hacked 3DS

There's also a thread for free NTRBoot flashing and free B9S installations, if you find someone close to you, you can ask them to do it, as you still need to pay for shipping
Free NTRBoot Flashing
Free B9S Installations