How to repack decrypt file back to 3ds rom?

Discussion in '3DS - Flashcards & Custom Firmwares' started by thaosnake, Oct 23, 2014.

  1. thaosnake
    OP

    thaosnake Member

    Newcomer
    15
    0
    Oct 23, 2014
    United States
    anybody hows to repack decrypt file back to 3ds rom.
    I was able to made some change to my pokemon y game to make it harder but dont know how to inject the garc file back and also to repack the whole decrypt file back to a 3ds rom to use on my gateway.
    thank you

    right now I'm trying to repack all the file to Romfs.Xor.bin and build a rom fro it...
     
  2. thaosnake
    OP

    thaosnake Member

    Newcomer
    15
    0
    Oct 23, 2014
    United States
    oh sorry my name is thaosnake....i been coming here for years but never became a user........if anybody need help i will try my best

    I'm been delicating my time off work on the ps vita so I'm hoping maybe my skill can help the 3ds grow too.
     
  3. The Real Jdbye

    The Real Jdbye Always Remember 30/07/08

    Member
    GBAtemp Patron
    The Real Jdbye is a Patron of GBAtemp and is helping us stay independent!

    Our Patreon
    12,326
    5,334
    Mar 17, 2010
    Norway
    Alola
    It's possible. There is a guide on the forums on how to inject your own ROMs into VC releases, look around for it, the same method can be used to replace any files in RomFS and repacking the ROM.
     
  4. gamesquest1

    gamesquest1 Nabnut

    Member
    GBAtemp Patron
    gamesquest1 is a Patron of GBAtemp and is helping us stay independent!

    Our Patreon
    14,152
    9,507
    Sep 23, 2013
    that method doesnt work for the likes of pokemon though, how i did it was re-xoring the rom to keep it as close to the original as possible, but its much more complicated and in my case (although im sure some people have better methods) more restrictive i.e keeping file sizes the same etc so as to not have to adjust the rom layout etc

    but unfortunatly there is no public tools for doing so, and the ones i used where given to me by someone else so i cant share them........but if your truely interested in learning look into how the rom is made and see how you can inject files and re-xor instead of using the makerom method which doesnt work on too many games

    PS its not really all that difficult to understand just readup on 3dbrew about stuff like IVFC hashes and the rom layout and hash regions etc.......if you have any sort of programming knowledge it would help speed up the process
     
  5. thaosnake
    OP

    thaosnake Member

    Newcomer
    15
    0
    Oct 23, 2014
    United States
    I was wondering if it will be possible to create a patch from the modify BLANK.bin and patch to the same rom since repacking all the file with Re-xor is taking forever on some computer and makerom is still not strong as of this moment.

    I will try this out later after work
     
  6. Huntereb

    Huntereb GBAtemp Addict

    Member
    2,748
    949
    Sep 1, 2013
    United States
    thaosnake If you're able to get something working after repacking it, let me know. I'm having quite a bit of trouble making heads or tails of this stuff. Most of the explanations given on the topic are incredibly minuscule portions of what actually needs to be done.
     
  7. lps

    lps man with no face

    Newcomer
    47
    6
    Sep 13, 2009
    Crimea, UA
    Any progress?
     
  8. thaosnake
    OP

    thaosnake Member

    Newcomer
    15
    0
    Oct 23, 2014
    United States
    No....also try converting to elf or e file and then back to rom but they all fail....let me know if u found a way to repack file back
     
  9. thaosnake
    OP

    thaosnake Member

    Newcomer
    15
    0
    Oct 23, 2014
    United States
    anybody know how.....I kept getting can't open gw.rsf file
     
  10. thaosnake
    OP

    thaosnake Member

    Newcomer
    15
    0
    Oct 23, 2014
    United States
    maybe i'm doing this wrong cause what i have is the decrypt folder for of all the file in the game like music, trainer data.
    what else do i need to be able to make the rom....since i dont have the banner or icon( dont know where to get them)
    plus do i have to convert the file to a romfs to be able to use make rom...
    sorry asking lot of questions
     
  11. thaosnake
    OP

    thaosnake Member

    Newcomer
    15
    0
    Oct 23, 2014
    United States
    or if somwone can just point me in the right direction after you decrypt a rom and motifly it.
     
  12. liomajor

    liomajor GBAtemp Maniac

    Member
    1,463
    1,065
    Jun 10, 2008
    United States
    RomFs:
    # Specifies the root path of the file system to include in the ROM.
    HostRoot : "decrypted/romfs"
     
  13. kevin_1351

    kevin_1351 Member

    Newcomer
    31
    26
    Apr 20, 2014
    Swaziland
    Lugano, Switzerland
    I'm trying to do the same thing, with no luck whatsoever ...
     
  14. thaosnake
    OP

    thaosnake Member

    Newcomer
    15
    0
    Oct 23, 2014
    United States
    well my pc is down until i get a new one.....if anybody is able to made a hard mod of this game please do a patch so i can try
    thank you