What are the benefits of dumping the OTP?

Discussion in '3DS - Homebrew Development and Emulators' started by pipe01, Jul 18, 2016.

  1. pipe01
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    pipe01 Member

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    I have seen people that have downgraded to 2.1 in order to dump their OTP, but I'm sitting here wondering what are the benefits or risking your 3DS in order to obtain that OTP-thing. I've read that it's related to a console specific key, but that still doesn't make any sense to me. Could anyone explain to me what it is useful for?
     
  2. osm70

    osm70 GBAtemp Maniac

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    You need that to install A9LH.
     
  3. pipe01
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    pipe01 Member

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    So arm9LoaderHax? What is that used for, again?
     
  4. DarkFlare69

    DarkFlare69 GBAtemp Psycho!

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    Installing A9LH requires the OTP. It isn't much of a risk if you follow the quide properly. Most of it is due to user error
     
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  5. bitcrush

    bitcrush Member

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  6. osm70

    osm70 GBAtemp Maniac

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    That's for running homebrew code from the start. Even before nand boots.
     
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  7. The Real Jdbye

    The Real Jdbye Always Remember 30/07/08

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    Faster and 100% reliable autoboot, better brick protection, more fool proof in use with no chance of accidentally updating sysNAND and losing your hacks, as it is persistent across system updates.
     
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  8. pipe01
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    pipe01 Member

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    Yeah, I found that while searching, but it only explains how to get it, rather than explaining what it is used for.

    So, you could update after installing a9lh and still use it? That's cool, thank you!
     
  9. gudenau

    gudenau Largely ignored

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    /dev/random
    The most common use at the moment is to allow the installation of a coldboot exploit that runs before the kernel executes, making it super fast. In theory it would also help us to do things in the future relating to encryption, since it contains keys that are console unique, and means that Nintendo can not do much about it once we have our little hands on it.

    — Posts automatically merged - Please don't double post! —

    As long as you are running a CFW that stops the updates from overwriting it, which could happen.
     
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  10. pipe01
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    pipe01 Member

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    I think I get it now, thank you all for the quick answers!
     
  11. GilgameshArcher

    GilgameshArcher GBAtemp Advanced Fan

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    https://github.com/Plailect/Guide/wiki

    U can install those nice CIA in your Home Menu, the CFW will patch the way for them run nice and smooth.

    You gain control of the sistem in the boot, so U can recover of them bricks adn use paylos form the boot to start useful tools.

    Is the best hack there for users looking to run games and Homebrews.
     
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  12. gudenau

    gudenau Largely ignored

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    No problem, it is always best to spread the facts to help prevent confusion!
     
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  13. pipe01
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    pipe01 Member

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    So you don't need a hardmod to recover from hardbricks? Or only soft ones?
     
  14. DarkFlare69

    DarkFlare69 GBAtemp Psycho!

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    Either.
     
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  15. osm70

    osm70 GBAtemp Maniac

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    Well, it is possible to get a brick that A9LH can't fix. But you pretty much have to do that on purpose.
     
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  16. Sumea

    Sumea Disco Ninja Frog

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    Once successfully installed, and given the FIRM0 and 1 are not written over by anything else - say title install like home menu gets corrupted all you need is pre-existing BIN backup of your console specific firm dump of any kind and you can recover.
     
  17. pipe01
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    pipe01 Member

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    Well, that really is useful!

    Yeah, I guess there are always exceptions
     
  18. Logan Pockrus

    Logan Pockrus Knawledge is key.

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    I speak from experience when I say this: the only brick you can't recover with A9LH is a bootrom brick. Otherwise you're golden. I know because I got a hard brick by screwing around with home menu stuff (by that I mean modifying the home menu), so I simply used Decrypt9 on boot and restored a NAND backup.
     
  19. pipe01
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    pipe01 Member

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    Would you say it's worth it to take the (seemingly low) risk of screwing up your 3DS to install it?
     
  20. Swiftloke

    Swiftloke Hwaaaa!

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    Delete FIRM0 and FIRM1 with godmode9: unrecoverable brick.
    But, as stated above, you kinda have to do that on purpose.

    — Posts automatically merged - Please don't double post! —

    Yes. Yes
    HELL.
    FUCKING.
    YES.
    (Kudos to those who got the reference ;))
     
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