A Theory on allowing anyone to downgrade?

Discussion in '3DS - Flashcards & Custom Firmwares' started by jackerz59, Oct 15, 2014.

  1. jackerz59
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    jackerz59 Advanced Member

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  2. loco365

    loco365 GBAtemp Guru

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    It doesn't just work like that. The key signs the NAND. You'd first have to dump it, decrypt it, change the keys so everything is signed with the new key, re-encrypt the NAND image with the new key, then reflash the NAND. It's an incredibly convoluted process that is probably far over many people's heads.
     
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  3. Apache Thunder

    Apache Thunder I have cameras in your head!

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    Yeah if you had the ability to decrypt the nand and then actually re-encrypt it so the 3DS will boot it...you might as well just hack the kernel files and get your homebrew/roms working on latest firmware. By the time we manage to get this far, using obsolete firmware would be counter productive. :P
     
  4. Qtis

    Qtis Grey Knight Inquisitor

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    Signing updates is not an easy feature. The PSP for example is capable of running CFW updates, because the original PS3 leak also held the keys to the kingdom of the PSP. At the present time, there is no (at least public) method of signing the NAND to run on an unmodified console. As such, even if it was possible to decrypt it, someone would have to figure out the key used for signing the NAND.

    So the TL;DR version:

    Possible in theory, improbable in practice.
     
  5. jackerz59
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    jackerz59 Advanced Member

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