You need the FBI homebrew application installed on your home menu to manage and install CIA files.
If the installation was successful, you will see text reading . Troubleshooting Common Errors Error Code: 0xD900100A (Safe Region Mismatch) pokemon ultra sun update 12 cia install
Connect your 3DS SD card to your computer and transfer the .cia update file to your SD card (e.g., in a folder named updates ). Open FBI: Launch the FBI application on your Nintendo 3DS. You need the FBI homebrew application installed on
A 3DS family system modded with and running the latest Luma3DS custom firmware . FBI title manager installed on your 3DS home menu. Open FBI: Launch the FBI application on your Nintendo 3DS
: If the CIA fails to install, use FBI to delete the existing update data and ticket for the game under "Titles," then try the installation again.
