What fbi does when it updates is it just installs the latest fbi from github or wherever the fbi updates are hosted, and installs the cia. That's it. Since that fbi has a different title id than the health and safety app, it should install a separate fbi cia.I'm not sure on that as I've never tried. Seems safer to write to the SD card rather than the NAND though. I'm not even sure if the injected FBI will even update seeing how it's on the NAND partition. But I could be wrong.