Hacking Question about playing games online with cias

[SwaGoat]

So,the story is that I want to play online with a friend of mine,who is going to have his 3ds ''Homebrewed'' in some days.
I currently can go online with a weird way,
1.I've created emuNAND on Gateway
2.I installed cias on the same region as my 3ds (some may I ask why I use cias,well it's because every time I try to play online by the .3ds rom,a message saying ''online services aren't allowed with this game card'' pops up and, yes I've checked if the region of the rom is the same as my console (EUR))
3.I've updated the emuNAND on the latest version
So the question,most probably is if there is a simplier way to play online using cias,since my friend doesn't have/can't buy a flashcard.
Ideas I thought were,using Rx CFW,upgrade it and quite much do the same like what I'd do on GW CFW,or generally, using any CFW that can be upgraded to the latest version

Thanks in advance

 

[Wahrrelasse]

https://github.com/Plailect/Guide/wiki/Part-1-(Homebrew) Just follow this guide EXACTLY to the end and you'll have an A9LH 3ds with the newest FW, the ability to install cias and much more