3DS to CIA tool download: http://www.pc6.com/softview/SoftView_186061.html
1. Ensure that the host has a virtual system, and the GW firmware is 2.7
2. Set Devmenu.3ds( Download address: http://pc6.com/softview/SoftView_186076.html )Copy Red Card
3. Copy the game (XXX. cia) file to be installed into the root directory of the host SD card
4. Enter the GW system, press select to find Devmenu, and run
5. Go to the Import side, find the XXX.cia (the cia file name should not contain Chinese) to be installed, press A to start the installation. After the installation is completed, press home to exit, and a gift package will appear on the system desktop to open, that is, the cia game you just installed. After the installation is completed, the XXX.cia file in the SD card is still in it, which can be deleted because it occupies too much space.