Homebrew 3ds extdata dump and restore tool (extra data editing!)

[RachelB]

The spaces are (what I can guess from programming knowledge) probably double width chars, for use with japanese/korean/chinese names, as they take 2 bytes to store for each character instead of a single byte

Yes, it's utf-16.

 

[WateredFire19]

MrCheeze could we edit what hats our mii's have with this tool?

 

[gudenau]

Did some research, I think I might be able to bust into the shared extdata...

 

[WateredFire19]

Did some research, I think I might be able to bust into the shared extdata...

Yay! Keep us updated

 

[gudenau]

Yay! Keep us updated

Gonna take a while. Need to get a GW. :-/

 

[MrCheeze]

Did some research, I think I might be able to bust into the shared extdata...

Um. This tool already does that, that's what the folders in the f0000000+ range are.

 

[WateredFire19]

Um. This tool already does that, that's what the folders in the f0000000+ range are.

Can you please explain this section to me? Thanks!!!

 

[Duo8]

Do you think you can make a tool for savedata instead?
I won't work on ninjhax but probably will as a CIA/CCI.

 

[MrCheeze]

Well, I solved the global Mii checksum. As RachelB says, it's the two bytes at 0xC81E, and it really does use the exact same checksum formula as on the Wii. Only difference is, you're supposed to run the formula over all the bytes in the file that come before the checksum (i.e. the first 0xC81E bytes).

Still haven't gotten the gold pants though. Attempts at doing so so far have led to the Mii just vanishing.

 

[shinyquagsire23]

Well, I solved the global Mii checksum. As RachelB says, it's the two bytes at 0xC81E, and it really does use the exact same checksum formula as on the Wii. Only difference is, you're supposed to run the formula over all the bytes in the file that come before the checksum (i.e. the first 0xC81E bytes).

Still haven't gotten the gold pants though. Attempts at doing so so far have led to the Mii just vanishing.

RIP Miis, they died for a good cause. Seriously though, keep us updated. I'd love to see a new way to import, export, and edit Miis. QRs are nice but take too long to generate for a whole library of Miis.

 

[MrCheeze]

Ah. Looks like the missing step was that gold pants need an extra bit set, that forces sharing to be disabled.

 

[TidusWulf]

Ah. Looks like the missing step was that gold pants need an extra bit set, that forces sharing to be disabled.

sir it is your DUTY to make it so can make my own Mii have gold pants. Please, thank you, and good night.

 

[themperror]

Ah. Looks like the missing step was that gold pants need an extra bit set, that forces sharing to be disabled.

Can you write a small guide?
1. open program X
2. go to this memory addres
3. calculate Y+Z
4. import
5. ???
6. Profit!

 

[WateredFire19]

Ah. Looks like the missing step was that gold pants need an extra bit set, that forces sharing to be disabled.

O_O Tutorial please

 

[Huntereb]

Keep in mind that you need to turn copying and sharing off before changing Miis "Special", otherwise Mii Maker will delete them.

Miis change special based on their ID, similar to how they worked on the Wii. Unfortunately, changing your main Mii to a Special Mii doesn't let you edit him, and has no positive side effects other than looking pretty.

 

[WateredFire19]

So how do we do this?

 

[Huntereb]

So how do we do this?

Change your Mii's ID within the extra data you've extracted, then re-import.

EDIT: And apparently there are checksums within the file, so fix those as well.

 

[WateredFire19]

Change your Mii's ID within the extra data you've extracted, then re-import.

EDIT: And apparently there are checksums within the file, so fix those as well.

A more in depth tutorial cause I don't know how to do checksums and all that

 

[Huntereb]

A more in depth tutorial cause I don't know how to do checksums and all that

[user]MrCheeze[/user]'ll have to do something like that for you, I didn't edit my Miis from the extra data.

 

[WateredFire19]

[user]MrCheeze[/user]'ll have to do something like that for you, I didn't edit my Miis from the extra data.

oh OK thanks