STEP 4a - Only for users without the Gateway card or a Cubic Ninja game (O3DS and 2DS)
Users have reported this not working when your nands are still linked! I recommend unlinking your nands first! Read the section "
Emunand Information" below!
Download
FBI.cia
1. Boot up your 3DS and launch rxTools. Hold L when the bottom screen glitches to get into the menu.
2. Press dpad RIGHT to go to Advanced Options -> Press A -> Install FBI -> Press A -> choose EMUNAND, then select "check TMD version".
3. Take note of the console region and the TMD version, and turn off your 3DS.
4. Open the rxtools download and open the "Tools/fbi_injection/[region]/[version]" folder and copy the "fbi_inject.app" and "fbi_inject.tmd" files to the SD card root dir.
5. Put the FBI.cia from the FBI download onto your sd card
6. Boot up your 3DS and launch rxTools. Hold L when the bottom screen glitches to get into the menu.
7. Press dpad RIGHT to go to Advanced Options -> Press A -> Install FBI -> Press A -> choose EMUNAND, then select "Install FBI". When it's done, it will ask what you want to do with the source. Select "keep" if you want to install FBI to sysnand later.
8. Now, return to the rxtools main menu and select RXMODE -> EMUNAND and launch the Health & Safety Information app, it should boot FBI instead
9. Select FBI.cia and press A to install it.
If you get a Database error! In your SD card, there should be a Nintendo 3DS folder. Open it, and open the folder inside that (has a long name of random numbers and letters); that is your Sysnand's ID folder.
If there are two ID folders, then do the following steps for both folders. One folder is for your Sysnand and the other is for your Emunand.
There should be another folder within, so open that too. You should now see an "extdata" folder. If you don't see a "dbs" folder as well, download
this zip folder and put the "dbs" folder
beside the extdata folder.
*Again, if the dbs folder already exists, and you have a title.db and import.db file inside, do not replace them!
Should look similar to this:
Now, boot the 3DS/2DS and go into Settings —> Data Management —> Software. It’ll ask to reset or repair your software management information or sd card, so allow it to do so.
Do this in Sysnand and Emunand!
10. You should now have a new FBI app on your home menu, use that to install your CIAs!