Hacking Playing local multiplayer between US and EU models

shim80 · Jun 25, 2020

Hello,
I have EU N3DS and USA O3DS. They both have the last Luma version. I can't play local multiplayer with games they're not region free (Luigi Mansion and Mario Party tested), and any games that require download mode (Mario Kart 7 tested).
Is there a way to make local multiplayer/download mode work between different regions using cfw ?

BaamAlex · Jun 26, 2020

If it doesn't work, change the region.

shim80 · Jun 26, 2020

BaamAlex said:
If it doesn't work, change the region.

If what doesn't work ?

I'll need to backup and remove everything to change the region. Isn't there another way ?

BaamAlex · Jun 26, 2020

shim80 said:
I'll need to backup and remove everything to change the region. Isn't there another way ?

Afaik no.

shim80 said:
If what doesn't work ?

Sorry. I wanted to write: "If nothing works".

TurdPooCharger · Jun 26, 2020

[Release] Dead Simple EULA Set

shim80 · Jun 28, 2020

TurdPooCharger said:
[Release] Dead Simple EULA Set

Thanks for this, I didn't know this homebrew. Isn't only for online ? It's will work for local multiplayer ?

TurdPooCharger · Jun 28, 2020

shim80 said:
Thanks for this, I didn't know this homebrew. Isn't only for online ? It's will work for local multiplayer ?

That allows playing online for out-of-region games by accepting user agreement for that specific region or country. I do not know if it applies for Download Play or local play.

Some games won't play together if you and a friend don't have the same exact game (ie, different TitleID or from different region). One of you would either have to dump and share their copy of his/her game or go & download it from Internet.

shim80 · Jun 29, 2020

TurdPooCharger said:
Some games won't play together if you and a friend don't have the same exact game (ie, different TitleID or from different region). One of you would either have to dump and share their copy of his/her game or go & download it from Internet.

I'm sure the cia files are same on both. I think the system just don't allow to play local multiplayer between regions...

TurdPooCharger · Jun 29, 2020

shim80 said:
I'm sure the cia files are same on both. I think the system just don't allow to play local multiplayer between regions...

Apply the EULA agreements on both the USA o3DS and EUR n3DS with that DSES homebrew app. That'll should allow the USA o3DS to participate in online games in the EUR only server, and EUR n3DS to do the same on the USA only server.

Also, you might need to create or link a NNID, Mii character, and add the two systems to one another's Friend List before they can find and play together.

shim80 · Jun 29, 2020

TurdPooCharger said:
Apply the EULA agreements on both the USA o3DS and EUR n3DS with that DSES homebrew app. That'll should allow the USA o3DS to participate in online games in the EUR only server, and EUR n3DS to do the same on the USA only server.

Are you sure it's related to online ? Both consoles doesn't have any internet access, they only can play local...

TurdPooCharger said:
Also, you might need to create or link a NNID, Mii character, and add the two systems to one another's Friend List before they can find and play together.

Already done. Some games have local multiplayer that work well (Pokemon, Super Smash Bros), and a Mii character and listed at friends is required to use any multiplayer feature.

TurdPooCharger · Jun 29, 2020

shim80 said:
Are you sure it's related to online ? Both consoles doesn't have any internet access, they only can play local...

Already done. Some games have local multiplayer that work well (Pokemon, Super Smash Bros), and a Mii character and listed at friends is required to use any multiplayer feature.

I don't think you can play together locally through Download Play. Let's say one of the 3DS systems has a NES Virtual Console game, and you want to do a two players gaming session. When the 3DS with the game goes to host the game in Download Play, the other 3DS won't recognize the announcement because its Download Play only works with those of the same firmware region.

Download Play (USA) - TitleID: 0004001000021100
Download Play (EUR) - TitleID: 0004001000022100

You can try to dump the system title CIA of the EUR version of Download Play like this.

Dumping d’un titre (Dumping a Title)

From the EUR n3DS using GodMode9, [1:] SYSNAND CTRNAND/title/00040010/00022100/content/0000000#.tmd → TMD file options... → Build CIA (legit).
Copy the sdmc:/gm9/out/0004001000022100 Download Play (CTR-N-HDLP)(E).legit.cia to the SD card of the USA o3DS.
On the USA o3DS, backup the SysNAND *.bin image for safety.
- Création d’une sauvegarde de la NAND (Creating a NAND Backup)
FBI install the CIA of the Download Play (EUR) on the USA o3DS.

If successful, you should be able to launch that copy and connect to the EUR n3DS.

If you manage to softbrick the 3DS firmware due to later deleting the wrong system titles or the installation goes wrong, restore the SysNAND with the image made in step 3.

Restauration de la sauvegarde de la NAND (Restoring a NAND Backup)

Hacking Playing local multiplayer between US and EU models

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UDE GA NARU ZE!

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UDE GA NARU ZE!

Meh.

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Meh.

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Meh.

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Meh.

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