So,this article is a detailed guide on how to setup and use MT-Card for playing 3ds games on N3DS/XL V4.5-4.1.
Step 1: Things You Need to Know Before Using Mt-card
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Step 2: Steps
1. Download blue card kernel V1.11 and unzip it,open the folder and copy the root files into your micro sd card.
5. Run Launcher.dat (repeat every powercycle), then choose“System Settings”‐”Other Settings”‐”Profile”‐”Nintendo DS Profile” on the Menu of 3DS console.
7.Copy ROMs (*.3ds) and SAVEs (*.sav) to the ROOT of the MicroSD
8.You can enter the menu of Launcher.dat by pressing KEY L when choosing “Nintendo DS Profile”, and you can use KEY LEFT and RIGHT to select functions