3ds Cias

https://gbatemp.net/threads/release-agb_firm-signature-patcher-gba-rom-converter.390313/

http://www.3dsiso.com/cia-downloads/273232-mega-cia-collection-rf-undub-bravely-yo-kai-watch-dub-undub.html

http://www.3dsiso.com/cia-downloads/273483-free-download-link-3ds-cia-collection.html


Instructions:
First two sites, you will have to create an account but then they should work