Gateway 3DS

Using Gateway and its clones is very dangerous. Older versions of the Gateway launcher make permanent changes to your NAND, which may potentially brick your 3DS. We strongly recommend that you do not use it!

This method is obsolete and is no longer required. Page is up for historical purposes.

The Gateway 3DS was the first 3DS flashcard created by the Gateway team, who would subsequently be identified as Team Xecuter.

Features

Compatible with all 3DS/2DS, 3DS XL/LL, and N3DS/N2DS XL/LL systems.
Support 3DS system firmware 4.1.0 and 9.2.0.
Multi-ROM support.
Support for microSD SDHC/SDXC cards (up to 128GB).
EmuNAND support up to system firmware 11.2.0.
Region-free.
Built-in cheats system.

List of Gateway clones

Because of the Gateway's popularity, other manufacturers have dabbled in manufacturing clones to capitalize on the 3DS flashcard market. As a result, Gateway released v2.0b2 of their launcher, which included controversial anti-tampering measures designed to be very malicious. If the checksum of the launcher file was tampered with, or if a clone Gateway cart was inserted, then the console's eMMC is locked with a password; however, due to a coding error, this also occurs if you're a legitimate Gateway user or have a corrupted SD card.

R4i Gold 3DS Deluxe
3DS Link (same team/product as R4i Gold 3DS Deluxe)
Orange 3DS (same team/product as R4i Gold 3DS Deluxe)
MT-Card
SuperCard DSTWO+
Bluecard 3DS (clone of MT-Card)
EZ-Flash Redux

Installation

DS Profile Exploit (MSET)

Note: This method only works if you have a console with System Version 4.x, you can check this by opening the "System Settings" applet on the HOME Menu.

Download the latest Gateway 3DS software and extract the archive.
If you have the blue card that came with the Gateway package, drag-and-drop all of the files from inside the Blue Card directory onto the root of the microSD card for the DS-mode flashcard.
- Any other DS-mode compatible flashcard that works with the 3DS, copy the GW_INSTALLER.NDS or similar file from inside of the Blue Card directory onto the root.
Copy Launcher.dat onto the root of your console's SD card.
Insert the blue card or DS-mode compatible flashcard into your 3DS, and select its icon from the HOME Menu.
Navigate to GW_INSTALLER.NDS and launch it.
Press the A button to continue when prompted, then select your model of 3DS and region.
- If the progress counter freezes at any stage, reboot the console and perform steps 4-6 again.
Press A to exit once the process has completed and reboot your console.
Launch the System Settings application.
Navigate to Other Settings → Profile → Nintendo DS Profile. With any luck, the exploit should start.
- If the console goes into the Nintendo DS Profile section as normal, the exploit has failed. Either you are on an in-compatible System Version or that the exploit was installed incorrectly.

Save Exploit (New 3DS)

Note: a New 3DS console is required to perform the exploit.

Download the latest Gateway 3DS software and extract the archive.
Copy Launcher.dat onto the root of your console's SD card.
Locate the save file for "Ocarina of Time" for your console's region under Save Games for New 3DS/Zelda.
Restore the save file to the game cartridge: this can be done using an R4 Save Dongle or through a previously modified 3DS console with Gateway installed using the Restore Savegame option.
Launch the "Ocarina of Time 3D" icon from the HOME Menu.
Select the "GATEWAY" save from the file select menu.
Press the A button whilst in gameplay and the Gateway menu should appear.
- If the console softlocks after pressing A, you will need to reset your save data and repeat the process again.