To use archived DLC, your 3DS must be running , specifically Luma3DS.
Your 3DS must be running CFW (typically Luma3DS) to install these files. 3ds dlc archive verified
Managing verified archives requires a console with Custom Firmware (CFW). [BUG] cia checksums are different #595 - d0k3/GodMode9 To use archived DLC, your 3DS must be
Then examine the embedded ticket and title version. To use archived DLC
What do I need to get started? All you need is a hacked 3DS (with CFW), 3hs (or FBI), and being close to your Wi-Fi router. Download CIA Files For 3DS: A Quick Guide - Ftp