Hi guys!

sonic2756's Unique Header Discussion thread is going quite big, so i will check it and add here all of the original headers posted and collect it here. If you want to discuss technical data, please us his thread instead of this tutorial. Post here only questions about the tools to use to edit your headers or if a game doesn't work.

UPDATE February 2015 : Nintendo started banning users playing online.
We suspect the use of Public Headers, but the real detection method is currently unconfirmed. Use this guide at your own risk.
More information about the first 3DS banning wave : https://gbatemp.net/threads/nintendo-begins-banning-pirates-from-3ds-online-service.381168/


I will describe easy method for write new header on scene releases. It doesn't work everytime, so try different headers.
Remember, if you use eg. US header on EU rom it works, but you have to accept Nintendo TOS again.
IMPORTANT: change header will make your old saves non working, so backup it first!
IMPORTANT COMMA 2: the same header can be used for more than one game.

NEEDED FILES:
1) GATEWAY ROM PATCHER 0.6 (Alternative Link)
2) A valid .bin header from the list below
3) A scene ROM
If links goes off send me a PM, I will reupload ASAP.

WRITE BIN HEADER ON SCENE ROM:
0) First thing: MAKE A BACKUP OF THE ROM!
1) Open your scene backup with GATEWAY ROM PATCHER 0.6. It should look similar at the image below:

2) Uncheck "Ask to create blablabla", then click on the Import button, then load your .bin header. If Chip ID or Media Type are not corresponding, then GRP will show this:

Click YES

3) A wild button "Inject" appears! Click on it.
4) Rename your rom from .3DS to .3DZ
5) Enjoy online!

BIN HEADER BACKUP:
1) Backup your original 3DS card with Gateway
2) Copy resulting 3ds file on your PC
3) Download and open GATEWAY ROM PATCHER 0.6
4) Load your rom
5) Click on Export button
6) Share the resulting .bin file, indicating the Game Name, Region, Size and Type of save

SHARED BIN HEADERS:​

Luigi's Mansion US (CARD-1, 1GB)​

Kirby Triple Deluxe US (CARD-1, 1GB)​

Metal Gear Solid 3D JP (CARD-1 4GB)​

Pilotwings Resort EU (CARD-1 128MB)​

Pokémon Y EU (CARD-2 2GB)​

Monster Hunter 4 JP (CARD-1 2GB)​

Thanks to everyone for programs, threads, tuts and bin files.

 

[cooroxd]

Nevermind, I got it working again. Basically, living in america, animal crossing EU does not work here. I had to download the USA version and then I use a header from a retail cart (I used kingdom hearts), I had to export the header from the retail cart and then modify it using the hex editor.

 

[Kurt117]

so i'm new to this whole patching thing and i have some dumb questions:
1.can i play games from other regions(US and Japan) on my EU 3ds?
2.can i split .3dz roms like normal *.3ds roms? (i use a memory card with Fat32 format so i have to split some roms like RE revelations...)
thanks in advance...

 

[Pedeadstrian]

so i'm new to this whole patching thing and i have some dumb questions:
1.can i play games from other regions(US and Japan) on my EU 3ds?
2.can i split .3dz roms like normal *.3ds roms? (i use a memory card with Fat32 format so i have to split some roms like RE revelations...)
thanks in advance...

1. Yes. With Gateway, of course.
2. That is... a good question. I would assume so. Trimming would probably work as well.

 

[Kurt117]

1. Yes. With Gateway, of course.

i'm aware that it's possible to play roms from different regions offline but what about the online features?i already have a scene dump of mario kart 7 v1.1-USA,can i patch this one and play multiplayer on my EU 3ds?

 

[Kalika07]

Hello, Where i can find bin header backup for my games?

 

[Cyan]

At the bottom of the first post of this thread?
in the tutorial, there are different header working with all games.

If you want to backup your own cartridge's ID, then you need to dump your ROM then use the tool to extract the header to binary.

 

[Mulder_RLZ]

Loved the thread, thanks for taking time to do it... Will enjoy online now.

 

[boogiemantcb]

Hey there thanks for this tutorial. Although I am having some issues trying to figure out this online thing. I have the rom patcher and was trying to get mario kart 7 to play online. I have a retail cart of it that i dumped to my pc and then exported the bin file. Then i loaded my mario kart rom to the rom patcher and loaded the bin file. Once i did that it changed the game id from fffffffff to the same as my retail cart but the problem is the inject button wont work. how do i get the inject button to light up so i can inject the bin file. Do i have to use a more current header from a game like the new legend of zelda? please help.. i'm usually very good with computers but for this i am lost. sorry if this questions been answered before but i cant find it.

 

[boogiemantcb]

Ok so i got the inject button to work and mario kart 7 opens now as a .3dz file but its asking for an update. Will this update change my firmware??? sorry for double post but it wont let me erase this post..

 

[Pedeadstrian]

Ok so i got the inject button to work and mario kart 7 opens now as a .3dz file but its asking for an update. Will this update change my firmware??? sorry for double post but it wont let me erase this post..

If it's saying you require a system update, yes. If it's saying the game requires an update (which it does), then no.

 

[fixx1983]

Ok so i got the inject button to work and mario kart 7 opens now as a .3dz file but its asking for an update. Will this update change my firmware??? sorry for double post but it wont let me erase this post..

Should be the MK 7 update 1.1

 

[boogiemantcb]

Yeah it was. So I got online with my Mario kart backup if found other players and then froze at the screen with a spinning earth??? And is there a Bin file from a certain game that will work on all or more than one backups?? Cause Mario kart is the only retail cart I have. Just want to make sure I have everything I need for Oct 3rd when smash bros comes out!!!

Edit: was able to get online ok! Can I use same bin file for multiple roms or do I have to use the bin file made for each rom?

 

[kibin]

Sorry for the noob question. So... I downloaded Pokemon, make all this thing and go online? Just that?

 

[boogiemantcb]

All what thing be specific!

 

[kibin]

All what thing be specific!

The whole tutorial
Sorry, in portuguese that sentence make more sense

 

[Pedeadstrian]

The whole tutorial
Sorry, in portuguese that sentence make more sense

Yes, by following the tutorial you can play 3DS ROMs online with Gateway.

 

[kibin]

Yes, by following the tutorial you can play 3DS ROMs online with Gateway.

Looks like simple anyway... I thought was more difficult

Thanks.

 

[boogiemantcb]

Where can I get a 4 gb header? The metal gear solid one won't do anything just a blank webpage? Is there a list for which headers are compatible with different games?

 

[Pedeadstrian]

Where can I get a 4 gb header? The metal gear solid one won't do anything just a blank webpage? Is there a list for which headers are compatible with different games?

I reuploaded it for you. https://www.mediafire.com/?0h1zc1iutorqv6y

 

[boogiemantcb]

Thank you!!! So how do I know what header to use with what game? Is it as long as same card type and size?