Alright, so...
I had a hardmodded 11.4 N3DSXL that had no sound because of a bad mobo. I used that N3DSXL to install b9s onto a new N3DSXL and did the whole system transfer/3ds.guide thing and now the new N3DSXL is running fine, freeshop, godmode and all that.
I'm confused about the restoring the source 3DS part... Ultimately, I want to replace the mobo in the original, hardmodded N3DSXL so the sound works and give it to my lady. Does the DSiWare game injection method ultimately result in two independent, modded consoles?
Do I (or can I) just remove the nnid
https://3ds.guide/troubleshooting#rm_nnid
and put the backed up contents of the source SD card on a new SD card and have two modded consoles? I'm confused.