I tried this now. It's still not working in Emunand. I'm pretty sure the problem is that FBI is compiled for the US region, so that it will not show up in emunand, no matter which CFW (reinand / cakesfw / rxTool) i use. The only CFW taking care of that region lock thingy seems to be Past CFW. Now i guess Free-Multi-Patcher should help me getting everything up and running, but would it be safe to install this to sysnand via Pasta CFW and creating a new emunand at this point again then? Also could i easily remove all traces from FBI and Free-multi-Patcher from sysnand by uninstalling them via FBI with Pasta CFW later? Luckily i've got a full NAND backup, anyways