ROM Hack Help with decompressing a code.bin file.

[Irumi`]

I would like to know for what purpose uses the code.bin files of the Nintendo 3DS games. But above all, I want to know if you can extract the files inside the code.bin files. By opening one with HxD I noticed several files, which I thought could be extracted.

I state that are completely newbie with software as ctrtool, and do not even know how to operate it.

Please anyone help me.

 

[Asia81]

And you, why you want decompress this file, what's your goal ?

decompress =/= extract

 

[Falo]

You can use ctrtool to decompress it and together with patchrom, you can make a code.elf from "code.bin + exh.bin".
This file can then be opened with ida pro, there are no files hidden inside, all files are in the romfs.bin, it's only code.

"code.bin + exh.bin" is the 3ds equivalent of a windows "game.exe".

 

[Irumi`]

And you, why you want decompress this file, what's your goal ?

decompress =/= extract

Sorry, I screwed up with the translator.

My goal would be to search for a particular file in Inazuma Eleven GO Chrono Stones: Thunderflash. Specifically, the file containing the passwords of the game (in some way the game should recognize the correct passwords from incorrect ones, and this should lead to the presence of a file, but I have not found anywhere in the extracted files from RomFS [the only ones are: banner.icn, .moflex videos, .bcstm audios, .bcsar and .fa files]). Passwords also work offline, so I think they aren't connected to some server.).

 

[DarkFlare69]

Have you searched all the files and opened them in a hex editor?

 

[Irumi`]

Have you searched all the files and opened them in a hex editor?

In the "ie_b.fa" file, using HxD, I found "PasswordChar", but around it there is nothing else that is connected to the passwords.

 

[Vidpic]

In the "ie_b.fa" file, using HxD, I found "PasswordChar", but around it there is nothing else that is connected to the passwords.

That's the same thing that I also try. I extracted the fa files, but i can't still read the bin files.

 

[Vidpic]

In the "ie_b.fa" file, using HxD, I found "PasswordChar", but around it there is nothing else that is connected to the passwords.

I find in the FA file an exe program