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.​

 

[gjac1]

here has been several succesful attemps in similar situation, so for as long as it detects it as one of the compatible one, it might be worth the try.

Thank you for the reply , is there a page or guide i can go to that shows me how to do it ?

 

[GravitySuitCollector]

@gjac1 https://gbatemp.net/threads/how-to-...a-legit-acekard-2i-using-a-hacked-3ds.473764/

Make sure it actually is the same card before doing anything (note the URL)

Edit: Do keep in mind there is the chance of bricking also... And upon further reading, I'm mildly concerned about your HW id showing as 00000000. What sort of flash menu does the card run?

 

[Jecoconono]

Where's that from? I found this. It might not be such a large sale, but still...

its from 3ds-cart (.net if you can't find it)
I can't buy it from that site, I need somewhere that ships to canada..
edit : I just checked and you need a checkout minimum of 90$ to actually check out (10 r4i cards..). Lmao, no ty. Seems to me like a scam.

 

[gjac1]

@gjac1 https://gbatemp.net/threads/how-to-...a-legit-acekard-2i-using-a-hacked-3ds.473764/

Make sure it actually is the same card before doing anything (note the URL)

Edit: Do keep in mind there is the chance of bricking also... And upon further reading, I'm mildly concerned about your HW id showing as 00000000. What sort of flash menu does the card run?

It uses YSMenu 6.86 and the icon is Spongebob. When i run the AK2I updater , it says the chip ID is f6e8ae2f and HW:1f46 :s

 

[GravitySuitCollector]

YSmenu is not an ak2i thing afaik.

Is there a URL on the cart? EDIT: after some brief reading, I'm guessing it's a DSTT clone.

 

[nl255]

Is there / will there be any way of flashing ntrboot to my flashcard without access to a another hacked 3DS?
This prerequisite makes it basically impossible for me to get boot9strap onto my 2DS, because I don't know anyone owning a hacked 3DS, heck, I barely know anyone owning a 3DS at all!
So, any help will be highly appreciated.

If it you have an Ak2i you can use an original ds system (phat or lite) to flash it. Dsi won't work and neither will 3ds.

 

[supergamer368]

This is AMAZING! I can't wait for support to be added to my flashcard! ALL HAIL THE MAGNETS!!!!!!!!!!!!

 

[THYPLEX]

currently only supported :

• Acekard 2i HW-44
• Acekard 2i HW-81
• R4i Gold 3DS RTS

planned:

• R4 SDHC Dualcore
• Supercard DS2

although i'm pretty sure it works for stuff that reflashable but i'm not certain.

I already know that , but unfortunately i possess only the old dstwo , so i was asking if even the old dstwo would have worked

 

[Jecoconono]

This is AMAZING! I can't wait for support to be added to my flashcard! ALL HAIL THE MAGNETS!!!!!!!!!!!!

don't forget you still need a 2nd console that already has cfw

I already know that , but unfortunately i possess only the old dstwo , so i was asking if even the old dstwo would have worked

its not supported, so either not or but some incredible dumb luck its compatible.

 

[THYPLEX]

don't forget you still need a 2nd console that already has cfw


its not supported, so either not or but some incredible dumb luck its compatible.

Oh come on, really ?
Only the plus model will be supported ?
Crap

 

[supergamer368]

don't forget you still need a 2nd console that already has cfw

I think a method is being worked on that requires a powersaves instead of a console with cfw
Edit:

 

[Mangraz]

If it you have an Ak2i you can use an original ds system (phat or lite) to flash it. Dsi won't work and neither will 3ds.

Unfortunately I bought the R4i already. But thank you for your answer.

 

[Snooli]

I already know that , but unfortunately i possess only the old dstwo , so i was asking if even the old dstwo would have worked

Aren't they the same just with higher clocks on plus?
http://rickeymandraque.github.io/linkers/dstwo.html

 

[sion_zaphod]

Can anyone please show the button combo and timing needed for doing this on o2ds. I have been trying this for hours. I've tried boot9strap installer and gm9 as boot.firm and neither seem to work. I would like confirmation and perhaps a video of someone doing this on o2ds because I've tried everything (holding x+start+select+power until the power light comes on then releasing all buttons or holding all buttons for anything up to 10 seconds before releasing)(I've tried switching the sleep switch off after releasing the combo buttons). Without actually seeing how this is done on a 2ds I cant tell if I'm doing something wrong.

 

[Jecoconono]

I think a method is being worked on that requires a powersaves instead of a console with cfw
Edit:
View attachment 95681

Sadly I don't have powersaves and I don't plan to get it neither, will the R4i included tool work? (I believe it is either a microsd reader or a cart reader)

 

[Cuphat]

Sadly I don't have powersaves and I don't plan to get it neither, will the R4i included tool work? (I believe it is either a microsd reader or a cart reader)

No.

 

[Jecoconono]

No.

Alright.

 

[Traiver]

Now waiting for the R4 card to arrive. I highly recommend buying them from nds-card.com. One of the best services I've ever had. :-)

Spoiler

 

[Columbo2811]

Can anyone please show the button combo and timing needed for doing this on o2ds. I have been trying this for hours. I've tried boot9strap installer and gm9 as boot.firm and neither seem to work. I would like confirmation and perhaps a video of someone doing this on o2ds because I've tried everything (holding x+start+select+power until the power light comes on then releasing all buttons or holding all buttons for anything up to 10 seconds before releasing)(I've tried switching the sleep switch off after releasing the combo buttons). Without actually seeing how this is done on a 2ds I cant tell if I'm doing something wrong.

I've done 2 o2ds today. I keep my fingers on the buttons for about 3 seconds then release. By the way after it's done installing you have to remove sleep mode and hard reset cause the safeb9s installer keeps rebooting otherwise.

 

[Thelonewolf88]

Can anyone please show the button combo and timing needed for doing this on o2ds. I have been trying this for hours. I've tried boot9strap installer and gm9 as boot.firm and neither seem to work. I would like confirmation and perhaps a video of someone doing this on o2ds because I've tried everything (holding x+start+select+power until the power light comes on then releasing all buttons or holding all buttons for anything up to 10 seconds before releasing)(I've tried switching the sleep switch off after releasing the combo buttons). Without actually seeing how this is done on a 2ds I cant tell if I'm doing something wrong.

Try the button combo + sleep toggle at the same time, watch for the power LED and wait about 5 secs on the black screen, release the button combo and the exploit should boot. Took me about 5 mins to do a o2ds first time.