ROM Hack [Tutorial] How to Decrypt, Extract & Rebuild 3DS|CIA|CXI Files

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gaberilde

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tsuna12

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how do I do dump and have this header I need to download a cia of the game? these files that want to transform into cia are a hack pokemon alppha sapphire rom
 

gaberilde

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you can also use my tool to dump the file.
What format is it? 3ds? if so i just released a update that supports 3ds files so download and extract it and itl have header
 

puss2puss

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you can also use my tool to dump the file.
What format is it? 3ds? if so i just released a update that supports 3ds files so download and extract it and itl have header
he said his 2 files are the romfs and code.bin

how do I do dump and have this header I need to download a cia of the game? these files that want to transform into cia are a hack pokemon alppha sapphire rom
these files are most likely a mod you downloaded, ready to be placed on the sd card (in the right directory..of course), then you activate the fonction in luma to be ablae to use mods.

But, you can always rebuild it like an update, and with the help of the software HackingToolKit9ds you can rebuild the modded update with your mods, then install it as a CIA.

Are you playing on Citra emulator or on a console with CFW ? if console, you use Luma?
 

gaberilde

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yeah i know he has the romfs and code files my app wont build without them if you want to modify a file so you would have to find the correct headers (from the original rom)
 

tsuna12

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he said his 2 files are the romfs and code.bin


these files are most likely a mod you downloaded, ready to be placed on the sd card (in the right directory..of course), then you activate the fonction in luma to be ablae to use mods.

But, you can always rebuild it like an update, and with the help of the software HackingToolKit9ds you can rebuild the modded update with your mods, then install it as a CIA.

Are you playing on Citra emulator or on a console with CFW ? if console, you use Luma?

the problem is that I'm not able to run it in 3ds I put them in luma / titles folder plus it does not run the game
 

gaberilde

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did you just put them in luma titles or did you actually include the number (id) of the game too?
you need the game title id for your region and then put the files in that.
Also make sure game patching enabled hold select on start
 

LeafsShadow

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So I'm trying to unpack a decrypted Fire Emblem: Awakening .3ds file. I'm using V12.
Attempt #1
I threw the .3ds file in the same folder as the hackingtoolkit9ds.exe.
I ran hackingtoolkit9ds.exe.
I hit "d" and then enter.
I entered the name of the .3ds file without the extension.
hackingtoolkit9ds runs and says the job is done.
I look everywhere for this "ExtractedO3DSUpdate" or "ExtractedN3DSUpdate" folder but there is nothing of the sort in any file on my computer.
Attempt #2
I put the .3ds file in a folder and named the folder "FE".
I ran hackingtoolkit9ds.exe.
I hit "d" and then enter.
I entered the name of the FE folder.
hackingtoolkit9ds runs and says the job is done.
Still nothing.

What am I getting wrong?
 

gaberilde

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HackingToolKit9ds has many issues including this one where it refuses to work. It isn't even updated anymore!
I think it happens when the patch contains spaces but im not entirely sure

You can use my tool, which features a GUI, is much easier, and works better! If you are interested download it here:
https://gbatemp.net/threads/gabrieloromtoolsgui.517483/#post-8268232
 

gaberilde

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Depends on the files you have, if you have atleast 1 ncch file or the files needed to build one, you can include it in a cia file.
 

gaberilde

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if you only have romfs and exefs with out headers then you cannot do it. maybe you could get them from the original game the romhack was for so you can make a cia then.
 

gaberilde

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If you extract the original one, yes
Now is your romfs and exefs files or folders? This is important to tell what format they are in
 

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