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.​

 

[Zaphod77]

if you backed up the firmware before you flashed, then yes.

otherwise only if someone has a backup for you.

if it's a r4i-bs9, their flasher (fixed version) can make it work.

 

[busmanl30]

I did a CTR Transfer to Unbricking and it didn't work

 

[Sliter]

the gateway blue card works for this? I havent saw it listed

his can unbrick any brick (except MCU)

what is a MCU?
I have a problem with a "particular brick" here, not sure if cause by impact on the board or by messing around with it, but I haven't made something like trying to bend it, playing Frisbee or something, I have any hope?

 

[busmanl30]

the gateway blue card works for this? I havent saw it listed

what is a MCU?
I have a problem with a "particular brick" here, not sure if cause by impact on the board or by messing around with it, but I haven't made something like trying to bend it, playing Frisbee or something, I have any hope?

I wanted to test if CTR Transfer would unbrick and it didn't work. I have a blue screen

 

[Sliter]

I wanted to test if CTR Transfer would unbrick and it didn't work. I have a blue screen

with the GW card or with the same problem?

 

[zoogie]

Couple of ntrboot related things to report

1. modchipsdirect is having a black friday sale right now.
the best thing is a dual card ntrboot/nds pack called r4i-kit. It's $13 down from $15.
(i'm not a shill for them - just thought the info could be helpful)

2. nds-card just posted this:
(2017.11.24) Please choose DHL for Christmas gift
Dear friends,

Christmas is coming, the speed of postal services has dropped, the average shipping time is 10-25 business days, about 15-30 natural days. 60 days is the deadline. Very very few orders arrive within 65-70 days (For South America and African countries).

if you want receive the order before christmas, from now on please choose DHL for the shipping method, We are not sure if the post airmail orders will arrive before Christmas or not.

Thanks for your understand.
nds-card.com

 

[Spielfehler98]

Does it works with a M3 (zero) flashcard?

 

[Zaphod77]

omg r4-kit just cloned the bs9 part of the ace3dsx. i know this because you have to put a sd micro into the flashcart. says so right on the page. WOW....

how hilarious can you get?

 

[zoogie]

omg r4-kit just cloned the bs9 part of the ace3dsx. i know this because you have to put a sd micro into the flashcart. says so right on the page. WOW....

how hilarious can you get?

Are you sure you can tell all of this by the fact it needs a microSD? I think there are a few of those.
And are you talking about this card(s)?

 

[Zaphod77]

yes.

they even copied ace3ds X instructions. EXACTLY.

a clone is a clone.

what's particularly silly is that the kit is ntr only with a separate ds cart. so there is no good reason for a dedicated ntr only card to even have the sdcard slot, unless it intends to copy stuff over from the cart. and if that were the case, it would have stuff to put there.

If it wasn't a clone of the same tech, it wouldn't need the sdmicro in it.

 

[Xyphoseos]

anyone have a backup of this flashcard ?
(this isn't my photo, and mine is "www.r4i-SDHC.com")

 

[ThisIsDaAccount]

anyone have a backup of this flashcard ?
(this isn't my photo, and mine is "www.r4i-SDHC.com")
View attachment 107000

Try using the R4i-b9s backup from that website. It should work with your card.

 

[Deleted member 381889]

-nvm-

 

[Xyphoseos]

Try using the R4i-b9s backup from that website. It should work with your card.

Flashcard unkown

 

[ThisIsDaAccount]

Flashcard unkown

Try using the regular ntrboot_flasher.bin and the backup.bin from "Unbrick R4i-b9s.zip" from here:

https://gbatemp.net/threads/unbrick-your-r4i-b9s-card.486704/

 

[Xyphoseos]

Try using the regular ntrboot_flasher.bin and one of the backups from here:

https://gbatemp.net/threads/unbrick-your-r4i-b9s-card.486704/

My R4 isn't a B9S flashcard, that can work ?

 

[ThisIsDaAccount]

My R4 isn't a B9S flashcard, that can work ?

Mine isn't either, but it worked for me (although mine was a different card from yours). Just open "unbrick R4i-b9s.zip" from that page, drag the ntrboot folder from that zip onto the root of your 3DS sd card, then open ntrboot_flasher.firm (the official one from the ntr team's github) and choose R4i-sdhc, then restore. It might not work, but it won't brick your card if it doesn't (it'll just say your card isn't compatible or something).

 

[Not_Awbawlisk]

Hello there. I recently got myself an R4I Gold 3DS Plus flashcart and have already followed the steps of injecting ntrboot flasher into my new flashcart (Thus rendering it unopenable after that?). I followed the rest of the steps that involved placing the necessary files into my New 3DS XL microSD from this video.



However, no matter how many times I try, I just can't happen to get my 3DS to boot up in B9S. I keep on trying the "Hold X + Start + Select + Power" combination and it truly does is just boot up the normal home menu. Or if not, it either shuts right back off (probably due to holding power for so long), or it starts up normally, but in sleep mode from the magnet I'm using.

Is there a very specific way that I need to do this combination? I'm very frustrated and confused over this. I've already injected NTR Boot Flasher and I REALLY don't wish to order another flash cart.

EDIT: It's cool now.

 

[Xyphoseos]

Mine isn't either, but it worked for me (although mine was a different card from yours). Just open "unbrick R4i-b9s.zip" from that page, drag the ntrboot folder from that zip onto the root of your 3DS sd card, then open ntrboot_flasher.firm (the official one from the ntr team's github) and choose R4i-sdhc, then restore. It might not work, but it won't brick your card if it doesn't (it'll just say your card isn't compatible or something).

My R4 isn't supproted with R4i-SDHC but with DSTT

 

[ThisIsDaAccount]

My R4 isn't supproted with R4i-SDHC but with DSTT

Ah, I see, you'll need the DSTT's backup.bin then (as you probsbly know, sorry for getting your hopes up).

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

Hello there. I recently got myself an R4I Gold 3DS Plus flashcart and have already followed the steps of injecting ntrboot flasher into my new flashcart (Thus rendering it unopenable after that?). I followed the rest of the steps that involved placing the necessary files into my New 3DS XL microSD from this video.



However, no matter how many times I try, I just can't happen to get my 3DS to boot up in B9S. I keep on trying the "Hold X + Start + Select + Power" combination and it truly does is just boot up the normal home menu. Or if not, it either shuts right back off (probably due to holding power for so long), or it starts up normally, but in sleep mode from the magnet I'm using.

Is there a very specific way that I need to do this combination? I'm very frustrated and confused over this. I've already injected NTR Boot Flasher and I REALLY don't wish to order another flash cart.

You aren't supposed to flash an r4i Gold 3ds plus, you have to open up the card and press the switch that puts it in ntrboot mode.