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.​

 

[annson24]

flashcart_core has been updated, giving official support to DSTT.

https://github.com/kitling/ntrboot_flasher

can anybody compile ntrboot flasher with the latest flashcart core?

 

[RY0M43CH1Z3N]

flashcart_core has been updated, giving official support to DSTT.

https://github.com/kitling/ntrboot_flasher

can anybody compile ntrboot flasher with the latest flashcart core?

You means someone to test it?

 

[Cuphat]

flashcart_core has been updated, giving official support to DSTT.

https://github.com/kitling/ntrboot_flasher

can anybody compile ntrboot flasher with the latest flashcart core?

Your warranty is void, blah blah blah.

Good luck and have fun.

 

[annson24]

Your warranty is void, blah blah blah.

Good luck and have fun.

Just compiled it myself too. However, the one you compiled as well as the one I did still doesn't inject ntrboot to all my DSTTs properly.

 

[Ramses]

if your going to experiment, before you do something that may brick your DSTT, use this first, as it shows if you got a real DSTT and tells you the Chipset and then cross check with this list of supported chips http://gist.github.com/Hikari-chin/6b48f1bb8dd15136403c15c39fafdb42

 

[annson24]

if your going to experiment, before you do something that may brick your DSTT, use this first, as it shows if you got a real DSTT and tells you the Chipset and then cross check with this list of supported chips http://gist.github.com/Hikari-chin/6b48f1bb8dd15136403c15c39fafdb42

All my three DSTTs have supported flashchip fyi.

Sent from my SM-G950F using Tapatalk

 

[RY0M43CH1Z3N]

Your warranty is void, blah blah blah.

Good luck and have fun.

Thank you!

I'll try it in my house

 

[dodol]

all ds function will cease to work after flashing with ntrboothax right ?
or some card allow both function ?

 

[hellionz]

hummm great news ....lets wait compatibilities

Greetings

 

[xXDungeon_CrawlerXx]

all ds function will cease to work after flashing with ntrboothax right ?
or some card allow both function ?

Acecard 2i

 

[tonyrayo]

Anyone try a M3 DS Real card to see if they work?

Based on current resources it seems doubtful, however I just dug out my DS Lite (which surpringly still had a bit of power after being in storage for over 3 years ) and have a M3 Real Cart that I will test. It shouldn't work out of the box, but I'd love to help get it ported to Kitlith's flashcart_core lib.

 

[Snooli]

I'm trying to fix a brick I have, but after rebooting out of Luma3DS, I get this error.
I can also provide firm backups and luma crash dumps if it helps

 

[Quantumcat]

Delete home menu extdata

1. clear Home Menu’s extdata by navigating to the following folder on your SD card: /Nintendo 3DS/(32 Character ID)/(32 Character ID)/extdata/00000000/
   • EUR Region: Delete 00000098
   • JPN Region: Delete 00000082
   • USA Region: Delete 0000008f
   • CHN Region: Delete 000000A1
   • KOR Region: Delete 000000A9
   • TWN Region: Delete 000000B1

 

[DeslotlCL]

I'm trying to fix a brick I have, but after rebooting out of Luma3DS, I get this error.
I can also provide firm backups and luma crash dumps

Do you have the latest official build of luma? Did your 3ds used to have an old entry point like menuhax? If so, depending on your region just delete the following folder inside of the "nintendo 3ds" one:

• USA: 0000008f
• EUR: 00000098
• JPN: 00000082

You could also check out the troubleshooting section of 3ds.guide if you need more help.

friggin ninja'd

 

[Snooli]

Delete home menu extdata

Do you have the latest official build of luma? Did your 3ds used to have an old entry point like menuhax? If so, depending on your region just delete the following folder inside of the "nintendo 3ds" one:

• USA: 0000008f
• EUR: 00000098
• JPN: 00000082

You could also check out the troubleshooting section of 3ds.guide if you need more help.

friggin ninja'd

There's no /Nintendo 3DS/, as it's a freshly formatted SD card. I do have a backup of it tho.
It was not haxxed before, not that I am aware, as I bought it second-hand.

 

[DeslotlCL]

There's no /Nintendo 3DS/, as it's a freshly formatted SD card. I do have a backup of it tho.
It was not haxxed before, not that I am aware, as I bought it second-hand.

Which version of luma then are you using?

 

[Snooli]

Which version of luma then are you using?

latest (8.1.1)

 

[DeslotlCL]

latest (8.1.1)

There must be a conflictive file on your sd card causing this. Did you instaled luma to the ctrnand or you just have the fimr file on the sd card? Pretty sure there should be a nintendo 3ds folder since it's created once you put it on your 3ds and turn it on.

 

[_Emmo]

Based on current resources it seems doubtful, however I just dug out my DS Lite (which surpringly still had a bit of power after being in storage for over 3 years ) and have a M3 Real Cart that I will test. It shouldn't work out of the box, but I'd love to help get it ported to Kitlith's flashcart_core lib.

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 ?

 

[Snooli]

There must be a conflictive file on your sd card causing this. Did you instaled luma to the ctrnand or you just have the fimr file on the sd card? Pretty sure there should be a nintendo 3ds folder since it's created once you put it on your 3ds and turn it on.

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