ROM Hack [Tutorial] Edit the HomeMenu

[Asia81]

WARNING: This will affect your HomeMenu, it's a critical core of the 3DS. Be sure to have a HardMod, or A9LH for recover a BRICK (I used it once, I got a brick the first time I did it. A9LH saved me) . Or your can do it on your EmuNand, but be sure to also backup your EmuNand before.

0) Download:http://www45.zippyshare.com/v/ohjEXrcU/file.html
1) Download, with 3DNUS the CIA of your HomeMenu (Latest Version):
JPN: 0004003000008202 v27648
USA: 0004003000008F02 v25600
EUR: 0004003000009802 v24576

2) Rename the CIA HomeMenu.cia.
3) Decrypt it using Decrypt9 -> Game Decryptor Options -> CIA Decryptor (Deep).

4) Take now the decrypted CIA and put it in the HomeMenuEdition folder.
5) Run Part1.bat, it will extract all decrypted files, then it will extract them.

Do all your edits now.
Most of files are LZ11 compressed, you should decompress them before editing, then recompress them.
2 ways: DSDemcp GUI in 3DS explorer, or the LZ11 decompressor in "MSBT Editor Reloaded". Once a file is edited, you need to recompress it. Just use the Compressor / instead Decompressor, then fix the file name, and delete the old compressed and the uncompressed.

6) Start Part2.bat. No need to repack your RomFS, it will be done automatically. All your files should be packed in a new cia HomeMenu_Edited.cia.
7) Encrypt HomeMenu_Edited.cia using Decrypt9 -> Game Decryptor Options -> CIA Encryptor (NCCH).

8) Once the CIA is encrypted, then you can install it. No need to delete the previous CIA, install it will overwrite the old one.
9) Reboot. Then pray or have A9LH. Check if you see your edits.

Some Screens:

Spoiler

Thanks Cellenseres for help!

Q: Can we...
A: NO!

Q: How to...
A: I don't know.

Q: What can you do with it?
A: I don't know.

 

[Faru]

Time to brick on my first try ;P

 

[Asia81]

http://www45.zippyshare.com/v/ohjEXrcU/file.html

Forgot to add the pack link in the op, sorry ~

Edit: Fixed

 

[SANNIC789]

http://www45.zippyshare.com/v/ohjEXrcU/file.html

Forgot to add the pack link in the op, sorry ~

Edit: Fixed

thank you

 

[Nyap]

how can I do 1) without 3DNUS

 

[Scarlet]

We love youuuuuu <3 Thanks for another great tutorial @Asia81 <3

(Oh yeah, it's hard mod, not mode. Easy mistake to make ^^)

 

[proflayton123]

May I ask, what can you do, with editing the Home Menu?

Although great tutorial as always, @Asia81

 

[SomeGamer]

Nice! Now onto translating the entire Home Menu!

 

[Halvorsen]

ASIA I LOVE YOU <3

 

[Ryccardo]

how can I do 1) without 3DNUS

Fire me a PM with region and OS version...

 

[Temarile]

That's amazing! Once I've installed A9LH on my N3DS I will definitely edit it

 

[SANNIC789]

is the new 3ds and old 3ds home menu the same?

 

[Ryccardo]

W00t

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

is the new 3ds and old 3ds home menu the same?

Yup, it's a dual-mode binary

 

[Bubsy Bobcat]

pretty useless imo, but neat to see that's possible.

 

[Scarlet]

pretty useless imo, but neat to see that's possible.

I stuck my contact info on the sleep screen in case I ever lose the system. That's pretty handy.

 

[Zan']

it's entirely possible to edit the textures. It's just a shit ton of work because you have to export and replace them manually.
Even more interesting however would be to modify the basic layout etc.

 

[tomx86]

Can we use this to translate the whole console in the future?

 

[SANNIC789]

what do i use to edit them? I compressed them then i opened it in a hex editor and i don't understand what to do now. I tried searching for what to use but i cant find anything?

 

[Ryccardo]

what do i use to edit them? I compressed them then i opened it in a hex editor and i don't understand what to do now. I tried searching for what to use but i cant find anything?

After DEcompressing the menu_msbt_LZ.bin, use MSBT Editor Reloaded (as you can tell from the screenshots )

 

[Mr.ButtButt]

Im trying to decompress the systemapp.0000.00000083
but it wont open in either msbt or 3dsexplorer ://