Is it possible to unpack system CIAs for editing?

Discussion in '3DS - Flashcards & Custom Firmwares' started by Voxel, Feb 28, 2016.

  1. Voxel
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    Voxel Fable Junkie

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    Hi all,

    I was wondering if there has been a known way to unpack and repack system CIAs so we could have, for example, custom applet icons, custom layouts, etc. in the home menu.

    If there are any tools that make it possible, please feel free to mention them. Thanks. :3
     
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  2. HowDoI?

    HowDoI? GBAtemp Regular

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    I have been wondering this too. You can do some pretty neat things with applets, like installing Spider over Skater by spoofing the TID.
    I want to see more!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
     
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  3. Queno138

    Queno138 Ravens

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    From what I know yes.

    I unpacked the Nintendo Zone module to see the passwords for the NZs.


    Do note that to install back to sysnand,
    it cannot be modified or spoofed.
    Those files would only work for emunand.
     
  4. Voxel
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    Voxel Fable Junkie

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    Do you have the method of how to unpack the CIA?
     
  5. Filo97

    Filo97 Zelda's totally my sister! Not lying!

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    because of signautre patches, but what if someone got arm9loaderhax?

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

    using packhack
     
  6. Voxel
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    Voxel Fable Junkie

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    Wait, there's an option in packhack to extract the CIA contents??
     
  7. HowDoI?

    HowDoI? GBAtemp Regular

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    Yeah, but you have to decrypt the CIA with Decrypt9 first
     
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  8. Filo97

    Filo97 Zelda's totally my sister! Not lying!

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    if is a decrypted cia, yes. (or you can use ctrtool) to decrypt it just use decrypt9
     
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  9. HowDoI?

    HowDoI? GBAtemp Regular

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    I ninja'd you. Teehee.
     
  10. Filo97

    Filo97 Zelda's totally my sister! Not lying!

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    partially. you didn't said about ctrtool.
     
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  11. Voxel
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    Voxel Fable Junkie

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    Thank you both.
    So what commands should I use in ctrtool once I have my decrypted CIAs?
     
  12. Filo97

    Filo97 Zelda's totally my sister! Not lying!

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    the one to extract the romfs that i don't remember
     
  13. HowDoI?

    HowDoI? GBAtemp Regular

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    Use PackHack :P
    Much easier.
     
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  14. Voxel
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    I think I'll get my head around it and experiment. ;)
     
  15. Queno138

    Queno138 Ravens

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    Use decrypt9 to decrypt,

    then proceed to use packhack to extract contents (if contents needs to be extracted)



    As for using A9Lhax, not sure..

    As far as I know, anything on sysnand cannot be modded, else it won't run.

    Even if you can directly boot into sysnand with signatures patched,
    you won't want to risk bricking it right?
     
  16. Filo97

    Filo97 Zelda's totally my sister! Not lying!

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    well, if i have a backup on the nand and a mod of decrypt9 that can run even before sysnand loads...
     
  17. Queno138

    Queno138 Ravens

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    As long as your unit doesn't brick before it runs any hax, it'll be fine. probably.
     
  18. Filo97

    Filo97 Zelda's totally my sister! Not lying!

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    arm9loaderhax isn't like menuhax. as long as frim0 and firm1 are untoched my 3ds isn't brickable
     
  19. shinyquagsire23

    shinyquagsire23 SALT/Sm4sh Leak Guy

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    You can, but it's extremely easy to brick if you don't have a way to install CIAs in the event that your repack fails (ie an actual ARM11 process to fall back on). Otherwise you have to reflash NAND backups but that takes forever.
     
  20. thatbooisaspy

    thatbooisaspy GBAtemp Fan

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    .
     
    Last edited by thatbooisaspy, Jun 3, 2017