Find the game in .cia format and install using FBI (which you probably have injected into the H&S app). If you are still on 9.2 you can use the Gateway menu (download latest pack from their website, put launcher.dat on the root of your SD card and visit go.gateway-3ds.com on your browser) to dump your cartridges in .3ds format, then convert to .cia (there are tools for that).