tried this but nothings happening ↓
https://gbatemp.net/threads/tutorial-installing-rxtools-custom-firmware-3ds-and-2ds.390867/
1. Boot up your 3DS
Open your 3DS internet Browser and go to http://launch.rxtools.net/
Hold R when the splashscreen pops up to get into the menu.
2. Go to Other Options -> Install FBI over Health&Safety App. It will say an error ocurred; don't worry, that's normal.
3. Take note of the console region and the TMD version, and turn off your 3DS.
4. Open the rxtools download and open the "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
Open your 3DS internet Browser and go to http://launch.rxtools.net/
Hold R when the splashscreen pops up to get into the menu.
7. In the rxTools menu, go to Other Options -> Install FBI over Health&Safety App->Emunand
8. After it completes, select Launch rxMode and launch the Health & Safety Information app, it should boot FBI instead
https://gbatemp.net/threads/tutorial-installing-rxtools-custom-firmware-3ds-and-2ds.390867/
1. Boot up your 3DS
Open your 3DS internet Browser and go to http://launch.rxtools.net/
Hold R when the splashscreen pops up to get into the menu.
2. Go to Other Options -> Install FBI over Health&Safety App. It will say an error ocurred; don't worry, that's normal.
3. Take note of the console region and the TMD version, and turn off your 3DS.
4. Open the rxtools download and open the "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
Open your 3DS internet Browser and go to http://launch.rxtools.net/
Hold R when the splashscreen pops up to get into the menu.
7. In the rxTools menu, go to Other Options -> Install FBI over Health&Safety App->Emunand
8. After it completes, select Launch rxMode and launch the Health & Safety Information app, it should boot FBI instead