As you know that the gateway team released the gateway 3ds firmware V2.1 on 30th March 2014 . Nowadays gateway 3ds is only 3ds flashcart that can support the pokemon Y/X , and other 3ds games that other 3ds flashcart that can’t support . such as Tobidase Doubutsu no Mori , Animal.Crossing.New.Leaf, Tomodachi Collection Shin Seikatsu, and so on . So, if you have a crush on gateway , you can buy one from this usa based site : gateway 3ds
This post will show you how to set up the Gateway 3DS with the newest firmware V2.1 to enjoy the 3ds games .
Before starting , these things required:
Step 1 Download the latest gateway 3ds firmware: gateway 3ds V2.1 OMEGA
After donwload , you would get :
You can see the files of the folder , then we will use them separately
Step 2 set up the gateway 3ds blue card
（a）Get a micro sd card , any size would be fine (format it before you use it ) . Open the blue card folder, and copy all the contents inside to the root of your micro sd card. Then the contents on the root of the micro sd card should be like this as below .
（b）insert the gateway 3ds blue card with sd card together into your 3ds console. power on
（c）Click the icon to enter
（d）Click the gateway installer to install
（e） Click A to start according to its Hint
（f） Just wait until the installation finish
（g） Click the “ Home” button back to the home menu and keep the power on.
（h） Then take out the gateway 3ds blue card.
Step 3 Set up the sd card.
(a) Format the sd card before you use it
(b) Back to the folder which you have downloaded in the step 1, find the GW-OMGEGA-2.1-RELEASE ， as the pic below
(c) open it and you can see the Launcher.dat file
(d) Copy it and put it on the root of your sd card.
(e) Insert the sd card back into the 3ds slot, go to the system settings nintendo.
(f) Click it
(g) Click other settings
(h) Click Profile
(i) then the console will go the gateway menu
(j) Put your 3ds games on another micro sd card (also format the sd card before you use it, the bigger size one ) , as you can see them as below . and
(k) then put the sd card with gateway 3ds red card into the 3ds console.Click A and it will take you to the home menu
(l) then just press SELECT you will see the four game icons show up
(m) Choose one game to play , here I take the Pokemon X for example .
Finally , enjoy your games !
If your gateway 3ds flashcart is the old card , you need to update it , here is the tutorial :