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.​

 

[FreePlayFlorida]

tried to flash my R4i 3DS card with files, but everytime just complains about it not being compatible, even thou thought was a proper card when I bought it, and now clones are included, not sure what Im doing wrong or is my card just another clone that wont work ?

 

[jolly1991]

Ok! Just saw a new commit and I compiled a new build.
@Raugo tested and it worked for him.

Please send me ntrboothax compiled beta

 

[LuigiXL]

I have 2 DSTT Variants (Unknown support but Flashchip IDs:
0x49B0: SHARP LH28F160BGHB-BTL
0x9120: ST M28W160(B)B

I cannot get either to work. Just for the record.

 

[mvmiranda]

Please send me ntrboothax compiled beta

Well, four already tested and it didn't work for them... A couple had their flashcard "somewhat bricked", so I prefer not to send this to anyone and wait to have kitling's final version.
Now, if you're reeeeally wanting to test this, send me a PM, but have it in mind that this would be on your own risk.
Ok?!
Cheers!

 

[jolly1991]

for me is not problem, please send me PM because i can't send you.
thank you

 

[spkuja]

Well, four already tested and it didn't work for them... A couple had their flashcard "somewhat bricked", so I prefer not to send this to anyone and wait to have kitling's final version.
Now, if you're reeeeally wanting to test this, send me a PM, but have it in mind that this would be on your own risk.
Ok?!
Cheers!

Would you mind sending it over to me in our current chat? I've got a back up of my TTDS so if it doesn't do anything then I'm not missing out on anything.

 

[mvmiranda]

Would you mind sending it over to me in our current chat? I've got a back up of my TTDS so if it doesn't do anything then I'm not missing out on anything.

Done!

 

[spkuja]

Has anyone got a clean backup of the TTDS MACRONIX MX29LV400B?

EDIT: Never mind, I managed to restore mine to normal using the firmware file that comes with the fake card checker. If anyone needs this, I can PM it to you. My card is working as normal now. I will test the new build when I get home this evening.

Edit 2: Still no luck, it looks like it flashes but still not working. I was able to restore my original firmware though

 

[Quantumcat]

tried to flash my R4i 3DS card with files, but everytime just complains about it not being compatible, even thou thought was a proper card when I bought it, and now clones are included, not sure what Im doing wrong or is my card just another clone that wont work ?

Is the website on the card r4ids.cn?

 

[Deleted member 381889]

Could anyone verify for me if the R4 3D Revolution (r4idsn.com) works on 11.5?
As in, for single system flashing.

 

[yacepi15]

Done!

Could you send me it, please?
Thank you!

 

[flow349]

hi guys. ive tried to unbrick a new 3ds with old3ds firmware (blackscreen blue led stays on) with ntrboothax.
but when i release the buttons the system shuts down and it dumped the arm9.bin,arm11.bin and otp.bin.
i have tried an acekard2i, r4i rts gold, different sd cards inside the 3ds and i also tried to boot different firms (godmode9,luma,safeb9sinstaller) with the same result: powered off after button release.
any idea whats my mistake?

 

[Spore2]

Has anyone tried ntrboot with the Galaxy Eagle i? I'm sure it's a confirmed acekard 2i clone

 

[VashTS]

stopped at goodwill the other day spotted a DSXtreme cart $3.99, meh ill take it...open it up and BAM AK2i with 4gb card in there too!! score now i have 2 NTR Boot carts and a DSXtreme (not sure if thats flashable but i might at least try it)

 

[leerpsp]

hi guys. ive tried to unbrick a new 3ds with old3ds firmware (blackscreen blue led stays on) with ntrboothax.
but when i release the buttons the system shuts down and it dumped the arm9.bin,arm11.bin and otp.bin.
i have tried an acekard2i, r4i rts gold, different sd cards inside the 3ds and i also tried to boot different firms (godmode9,luma,safeb9sinstaller) with the same result: powered off after button release.
any idea whats my mistake?

having the same thing go on but my blue light stays on it will not boot the ntrboot at all.

 

[flow349]

having the same thing go on but my blue light stays on it will not boot the ntrboot at all.

yes but mine turns off after releasing the buttons. have you dumps of your arm9,arm11,otp?
im sure it came from that console because i formated my sd-

 

[leerpsp]

yes but mine turns off after releasing the buttons. have you dumps of your arm9,arm11,otp?
im sure it came from that console because i formated my sd-

Nope then files are not dumped on to my card after that at all. try taking your battery out pluging it in charge then turn it on when it goes off the charging light should turn off then put the battery in put it on charge then turn it on when it turns off live it for 10 min on charge and see if it will work because mine started doing that at 1st and then that fixed it for me.

 

[leerpsp]

just asking is there a way i can use this boot into godmod9 or something like it to restore my nand?

 

[TheCyberQuake]

just asking is there a way i can use this boot into godmod9 or something like it to restore my nand?

Did you not read OP? Or any of the replies?

 

[flow349]

Nope then files are not dumped on to my card after that at all. try taking your battery out pluging it in charge then turn it on when it goes off the charging light should turn off then put the battery in put it on charge then turn it on when it turns off live it for 10 min on charge and see if it will work because mine started doing that at 1st and then that fixed it for me.

nope that not the solution. also leaving the battery out for a while and another try makes no difference.