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:
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.