I don't know if this will help, but I went to this site http://3dsfirmware.blogspot.com/2016/01/mega-ciabin-mset-4x-6x-backups-browser.html and got the 9.2.0-20U
Is it currently possible to run the retroarch .cia on a 10.5-30 firmware? I have homebrew and some retroarch cores and all that, but I want the emulators to run faster through cia.