Is b9s really unbreakable?

Discussion in '3DS - Flashcards & Custom Firmwares' started by NoNAND, Jun 8, 2017.

  1. NoNAND
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    NoNAND GBAtemp Advanced Fan

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    I mean. Can nintendo remove it via an update. Or lets say your 3ds broke and and you send it in for repairs. Are they able to remove it.

    And can you get into legal trouble if nintendo sees that you have b9s if you could send it for repairs.
     


  2. ManuelKoegler

    ManuelKoegler GBAtemp Fan

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    Being that it's unpatchable and can be applied on all current 3DS models no matter the firmware through hard mod, yes, it's unbreakable.


    Sent from my iPhone using Tapatalk
     
  3. NoNAND
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    NoNAND GBAtemp Advanced Fan

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    Ok. Thanks.


    Sent from my CTRNAND using Luma 8.0
     
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  4. Giodude

    Giodude Ruler of Italy

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    I'd say a hammer'll break right through it before Nintendo does.
     
  5. Lucifer666

    Lucifer666 all the world needs is me

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    There's another thread about this on the front page right now

    TL;DR don't send it to repairs: yes they will be able to detect it, no it's unlikely they'll do anything, but it's also unlikely they'll actually repair it, just send it back
     
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  6. lincruste

    lincruste GBAtemp Regular

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    I don't understand how you guys seriously think Nintendo can't fix an exploit on a device they have physical access to.
    Of course they can fix it. They'll always have at least the same access hackers have, plus an army of engineers with full documented access hackers do NOT have.
     
  7. DavidRO99

    DavidRO99 Official depressed pikachu

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    your back-door
    they would need to change the whole bootrom on every console in the factory.... so yea... unlikely
     
  8. Redferne

    Redferne GBAtemp Advanced Fan

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    What you need to understand is B9S uses a vulnerability in the bootrom to install itself. To fix this Nintendo will have to make a new bootrom. To distribute it they will have to make a new hardware revision. While all of this feasible it is very unlikely that Nintendo will invest the money to do so.

    Contrary to popular belief Nintendo is a very small company and they don't have an army of engineer ready to fix whatever vulnerability hackers found. In most cases they don't know about the vulnerabilities and the way to exploit them before hackers found them.
    We know now how Nintendo is "fixing" hacked firmware in factory cf NTRBootHax.

    So while Nintendo can indeed remove B9S from a console, the vulnerability remains and we will be able to reinstall it.
     
    Last edited by Redferne, Jun 8, 2017
  9. lincruste

    lincruste GBAtemp Regular

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    Yes but what YOU must understand is the original poster asked about REMOVING bs9 when the device is serviced, not, blocking it.
     
  10. Redferne

    Redferne GBAtemp Advanced Fan

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    And I was just answering to YOU saying they can FIX it not just REMOVING it.

    Anyway the OP does have an answer now.
     
  11. Byokugen

    Byokugen Unit_01

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    Just a bit to the right, or was left...
    Only a new hardware revision can break it, and I doubt they will spend $$$ to do it. But yeah they will detect it, and won't repair your device. Breach of user agreement and stufd
     
  12. trinhno

    trinhno GBAtemp Regular

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    Is it possible? Yes. You'd need new hardware as the bootrom is physically inside the SoC.
    And for most electronics hardware repair nowadays, it'd be more economical for them to just replace the whole motherboard rather than having the technicians de-solder and re-solder a BGA chip.
    As the exploit was only revealed recently, it's not possible for them to have already produced a new motherboard revision and shipped it to repair centers. (And most likely will still be present in the unreleased N2DS XL as well).
    Would Nintendo invest in a 3DS board revision at all? Probably, but not in the short term and most likely not at all. Right now, their production hands are tied for the Switch. Later the 3DS may not be profitable enough to justify a new revision at all. (They'd have to order a new chip design from the fab and those have to be in bulks. The remaining sales may not be enough).
     
    Last edited by trinhno, Jun 8, 2017
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  13. Byokugen

    Byokugen Unit_01

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    Just a bit to the right, or was left...
    4DS will have it fixed though
    It will kick you in the nuts if you try to temper with it
     
  14. squall14716

    squall14716 GBAtemp Maniac

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    B9S is removable just like A9LH, that's why CFWs have to have FIRM protection to prevent that from happening.

    sighax is not patchable, however. You will always be able to install it with a hardmod or ntrboothax.
     
  15. trinhno

    trinhno GBAtemp Regular

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    Yup, exactly, the exploit needs a hardware revision to fix.
    The changes to the FIRM partitions so it'll load your custom firmware can be overwritten by an update if the CFW doesn't protect them. (e.g. Gateway).
     
    Last edited by trinhno, Jun 8, 2017
  16. NoNAND
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    NoNAND GBAtemp Advanced Fan

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    Does luma protect them?
     
  17. trinhno

    trinhno GBAtemp Regular

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    Of course. That's why it's recommended for most people.
     
  18. NoNAND
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    NoNAND GBAtemp Advanced Fan

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    Oh ok.
     
  19. squall14716

    squall14716 GBAtemp Maniac

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    Yes. The same protection that worked for A9LH also protects B9S/sighax. Luma has had this protection basically from the very start when it was called AuReiNand. ReiNand has it. Cakes and Corbenik also have it, but you could disable (or had to enable) it. Gateway is pretty much the only CFW that manages not to include such a basic thing.
     
  20. NoNAND
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    NoNAND GBAtemp Advanced Fan

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    Does anybody know why i cant open the rosalina menu. I have luma 8.0 but it freezes on boot if i press l down + select