Homebrew braindump prerelease - dump game contents on any system version!

[Giodude]

how long does this take?

 

[Returnofganon]

Wow man I made a thread not an hour ago asking if there was something like this. I salute you my good sir

 

[Selim873]

is it possible make a progress bar when dumping
thank you
----------
I try to use it dump files
it shows dumping code 。。。 2683KiB。。。
and not respond

It's slow. Using a stop watch and some math trying to rip the RomFS in MH4U, I think it's capped at 128KB/s overall. When it reaches RomFS, it'll show a realtime number count in bytes.

 

[Giodude]

still luv it either way

--------------------- MERGED ---------------------------

did the math pokemon x takes 3.7 hours to dump

 

[Deleted User]

Hi,

In the past few days, I've been working on a new tool called braindump. I'd hereby like to announce a pre-release of the tool, meant to help people interested in ROM hacking to get set up faster.

WHAT'S BRAINDUMP?
braindump is a 3DS userland homebrew application that can dump decrypted contents (both ExeFS and RomFS) of any 3DS game. This includes cartridge games, but also content obtained from the eShop and even some system applications. Even better yet, braindump runs on any system version since 9.0, including the most recent one.

WHAT IS IT USEFUL FOR?
Currently, it's for the most only useful for dumping game assets: Graphics, sounds, 3D models, etc. In particular, this should be useful for anyone interested in game modding.

braindump's feature set has been covered by uncart and Decrypt9 before, however braindump provides a few major advantages:

• it runs on any system version newer than 9.0, including the most recent one. uncard and Decrypt9 are limited to system versions 9.2 or below.
• it dumps cartridge games, eShop content, and (some) system applications in a uniform way. All three of these had to be decrypted with different commands before.
• it's more convenient, since it can be launched directly from the Homebrew Launcher and only requires one operation step from starting to the decrypted content. uncart and Decrypt9 had to be launched through a separate program, and after dumping a game you had to restart your console and run another chain of commands to actually decrypt things.

DOWNLOAD AND USAGE
Binaries are available on GitHub. Note that I'm releasing the tool earlier than planned to make the HANS application shipping with *hax 2.5 more accessible to the broader masses (see below). For now, I'll keep the source code private, but rest assured it will be published as soon as I get to implementing the full feature set that was planned.

Extract the archive into your SD card's 3ds folder. The full path to the 3dsx should be "sd:/3ds/braindump/braindump.3dsx", and next to that file there should be an xml file. braindump must be launched from 3ds_hb_menu (3dslink or CIAs won't work). Upon launching, you will be asked for a target title - this is the application that will be dumped. Note that the tool will start dumping immediately after selecting the target title, so better make sure you have enough free space on your SD card.

Sorry for the lack of further instructions -- I'd rather get this thing out ASAP to make it useful for the more knowledgeable people. I'm sure we can clear up any confusion in the next few days, though

FREQUENTLY ASKED QUESTIONS
How to ROM hack?!
At this stage, I cannot give you full instructions on how to mod a game, but here are some quick hints:

• Dump the game contents using braindump on your 3DS. This will place the files exefs.bin and romfs.bin on your SD card (in a subdirectory with a 16-digit number as its name)
• On your PC, extract the two files using ctrtool. Use "ctrtool --intype=romfs --romfsdir=romfsdir romfs.bin" and "ctrtool --intype=exefs --exefsdir=exefsdir --decompresscode exefs.bin" to unpack the romfs and exefs, respectively
• Game modders will be interested in the contents extracted to romfsdir. Modify whatever you like, and repack the contents using 3dstool
• Put the new romfs binary on your SD card. Start HANS on your 3DS and point it to the modded game, and make it replace the romfs with your new image. Note that for HANS to detect the romfs binary, you'll need to remove the first 0x1000 bytes from the romfs binary.

Can I use the dumps with Citra?
Unfortunately, not yet.

Will this break my 3DS?
It runs entirely in userspace, hence it's unlikely anything bad will happen. No guarantees though; I take no responsibility for anything that happens as a direct or indirect consequence of running this software on your 3DS.

I have a question and it isn't answered here!!!11
Give me a break, I wrote the FAQ 5 minutes before publishing this post!

FUTURE PLANS
There's a lot more to come in braindump than just dumping ExeFS and RomFS. Stay tuned, I guess

Great release! Now we just need a way to dump to our PCs via FTP :3

 

[Selim873]

still luv it either way

We all should!! Nobody else had done it! This will probably be the one tool everyone will use until the 3DS scene dies. This is also a Preview Release if that matters.

 

[TheLittlestBowl]

how long does this take?

Took about 10-15 minutes to dump Chain Blaster(1.3MB exefs.bin, and 18MB romfs.bin).

 

[Giodude]

pokemon x is 1.7 gigs

 

[Pikasack]

Gonna build CTGP-7 with this, gonna see if it works.

 

[Coto]

nice neobrain.

 

[Giodude]

Gonna build CTGP-7 with this, gonna see if it works.

same here tell me how it goes and how i can go about doing so

 

[Neru]

Wow this is awesome! Dumping smash to add custom audio

 

[Cornholio309]

This is exactly what I was hoping would come around, and it came so much earlier than expected!

Thanks a bunch, man!

 

[Amapola62]

Same but replace that with pokemon hacks instead

 

[KaleoOmega]

This is amazing, dumping my Mario Kart 7 game right now! Looking forward to play CTGP-7 and Pokémon Neo Y soon
Thanks a lot!

 

[fmkid]

Wooowww... It's happening! Thanks a lot

 

[Pikasack]

same here tell me how it goes and how i can go about doing so

I have a sort of tutorial in my thread.

 

[Giodude]

well i mean would it be any different using it from this specific dump? I looked at the tutorial.

 

[Amapola62]

How would I patch my own version of Pokemon X to become Neo X ? I suppose I'll have to use that tool to dump it and then what ? I downloaded the packhax and python 2.7.7...where do i get the patch ?

 

[Giodude]

How would I patch my own version of Pokemon X to become Neo X ? I suppose I'll have to use that tool to dump it and then what ? I downloaded the packhax and python 2.7.7...where do i get the patch ?

That's the second thing i'm doing. Damn how is everyone reading my mind?