ROM Hack [Tutorial] Edit the HomeMenu

Asia81 · May 2, 2016

TitleID Yes, product code no (except with 3DSBuilder, but 3DS Builder is not used here)

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I can try something for the product code, I will check tonight, I'm not at home

MasterLel · May 2, 2016

Well I can't get the Japanese keyboard to work properly, so I'm thinking about using the japanese cia, change its product code and TitleID and install it over my european keyboard, which should fix the problem.

Traiver · May 2, 2016

Hm....

Zan' · May 2, 2016

Earth97 said:
Does this mean we could change icons, bar positions, add buttons (e.g. "Load the HBL" button) and so on? Did anyone manage to do it?

Not sure what you mean by load the hbl button but you can change color and positions.
@MasterLel and @TheDeKay habe done it.
And I am pretty sure changing the Icons is possible as well.

But someone could possible rewrite everything in code etc and compile it. And the rebuild it with the Home Menu headers etc. I guess that would be "easier" but probably requires reversing as well.

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MasterLel said:
Well I can't get the Japanese keyboard to work properly, so I'm thinking about using the japanese cia, change its product code and TitleID and install it over my european keyboard, which should fix the problem.

Just take the Header Files from the european one. And everything else from JP.
And possibly overwrite the language file

MasterLel · May 2, 2016

Adding buttons should be possible but adding a function to it, like loading the hbl or whatever when you press it, is impossible. (well in theory it's possible but it would requires reverse engineering on the code.bin)

Zan' said:
Just tale the Header Files from the european one.

Gonna try but I doubt it will work.

Zan' · May 2, 2016

MasterLel said:
Adding buttons should be possible but adding a function to it, like loading the hbl or whatever when you press it, is impossible. (well in theory it's possible but it would requires reverse engineering on the code.bin)

Gonna try but I doubt it will work.

It should. The header includes ver etc.
And you effectively change code etc.

However the keyboard may even be bound to the JP region. That would require you to nop this requirement. And in that case title ID won't matter.

Angelcraft · May 2, 2016

can someone do a noob-friendly guide for this?

Stoned · May 2, 2016

Angelcraft said:
can someone do a noob-friendly guide for this?

Yes Please
My Changes doesn´t Work. :/

MasterLel · May 2, 2016

@Zan' As expected it didn't work. Console crashes.

Traiver · May 2, 2016

Stoned said:
Yes Please
My Changes doesn´t Work. :/

You can PM me, if you need help with it.

Zan' · May 2, 2016

Angelcraft said:
can someone do a noob-friendly guide for this?

There is a discord channel to help out:
https://discord.gg/0z7IGZ5Sv3D0mEN0
@MasterLel you should join it as well

But here a short guide

Get 3DNUS
Download your Home Menu CIA using 3DNUS
- JPN: 0004003000008202 v27648
- EUR: 0004003000009802 v24576
- USA: 0004003000008F02 v25600
Download this tool
Put your downloaded CIA file into the D9Game folder of your 3DS SD
Launch Decrypt9 and choose
- Game Decryptor Options -> CIA Decryptor (deep)
Copy the decrypted CIA into the folder of the Tool you downloaded.
- Rename the CIA to "HomeMenu.cia"
- Or drag your CIA file onto the tool.
Start the Tool and choose 7
When the tool opens the ExtractedRomFS folder you are ready to do your edits.
- You can do the Edits using a Hex Editor
After you are done press any Key in the Tool. It will rebuild your CIA
- The tool will ask you for the Letter of your SD Card and autocopy it into the D9Game folder.
Launch Decrypt9 again and choose
- Game Decryptor Options -> CIA Encryptor (NCCH)
Install your edited CIA using a CIA installer (HomeMenu_edited.cia)
Reboot and check your changes.

The sleep screen is in sleep_LZ.bin
The Texts are in message\[Region_[Language]\menu_msbt_LZ.bin
The menu hud is in hud_LZ.bin

Some more info can be found here

Angelcraft · May 2, 2016

i cant do my edits becaus i dont know how to do it

Traiver · May 2, 2016

Angelcraft said:
i cant do my edits becaus i dont know how to do it

Don't you understand the tutorial or what problem do you have?

Angelcraft · May 2, 2016

i dont understand how to do i dont understand hex

Asia81 · May 2, 2016

MasterLel · May 2, 2016

Angelcraft said:
i dont understand how to do i dont understand hex

I don't think this thread is for you...
I suggest you to go here http://www.homemenu.co/ and download your stuff just like you download themes.

Asia81 · May 2, 2016

MasterLel said:
I don't think this thread is for you...
I suggest you to go here http://www.homemenu.co/ and download your stuff just like you download themes.

Yeah, because I guess it's a lost cause to try to explain better xD

angelus kun · May 2, 2016

Zan' said:
There is a discord channel to help out:
https://discord.gg/0z7IGZ5Sv3D0mEN0
@MasterLel you should join it as well

But here a short guide

Get 3DNUS

Download your Home Menu CIA using 3DNUS

JPN: 0004003000008202 v27648

EUR: 0004003000009802 v24576

USA: 0004003000008F02 v25600

Download this tool

Put your downloaded CIA file into the D9Game folder of your 3DS SD

Launch Decrypt9 and choose

Game Decryptor Options -> CIA Decryptor (deep)

Copy the decrypted CIA into the folder of the Tool you downloaded.

Rename the CIA to "HomeMenu.cia"

Or drag your CIA file onto the tool.

Start the Tool and choose 7

When the tool opens the ExtractedRomFS folder you are ready to do your edits.

You can do the Edits using a Hex Editor

After you are done press any Key in the Tool. It will rebuild your CIA

The tool will ask you for the Letter of your SD Card and autocopy it into the D9Game folder.

Launch Decrypt9 again and choose

Game Decryptor Options -> CIA Encryptor (NCCH)

Install your edited CIA using a CIA installer (HomeMenu_edited.cia)

Reboot and check your changes.

The sleep screen is in sleep_LZ.bin
The Texts are in message\[Region_[Language]\menu_msbt_LZ.bin
The menu hud is in hud_LZ.bin

Some more info can be found here

i dont know why but when i try to install my custom menu FBI says "error this title already exist" then i reboot my console and its bricked ._:

Angelcraft · May 2, 2016

Asia81 said:
Yeah, because I guess it's a lost cause to try to explain better xD

thanks ¬¬

MasterLel · May 2, 2016

angelus kun said:
dont know why but when i try to install my custom menu FBI says "error this title already exist" then i reboot my console and its bricked

Follow this :

MasterLel said:
Don't install a customized home menu over another customized one. You have to install a clean home menu to overwrite the customized, then you can install your custom cia.

like this : normal HM > custom HM v1 > normal HM > custom HM v1.5 > normal HM > ...and so on.

Use an updated FBI and don't encrypt cias downloaded from 3DNUS, they are already encrypted.
Also, if your console crash after the installation, it's normal, just reboot it.

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Angelcraft said:
thanks ¬¬

he's right thought... You don't buy a car if you don't know how to drive it, and then ask the vendor "hey teach me how to drive pls"
And OP said :

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

You can easily brick your system if you don't know what you're doing.

ROM Hack [Tutorial] Edit the HomeMenu

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Cooonfusion of da highest orda

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