This isn't true at all. -_-If they are signed and legit you can, but if there are not signed you can't.
Almost any game can be installed.
The only legit cias are the ones that came preinstalled with 3ds bundles. So if you stay on 10.3 until February, you can technically get Pokemon Red & Blue, which come preinstalled on a New 3ds bundle, thereby making them Legit.If they are signed and legit you can, but if there are not signed you can't.
Almost any game can be installed.
According to your signature, your o3ds is on 9.2, so you can just install Pasta CFW and knock yourself out with all the selections of unsigned cias.Can I?