Installing boot9strap (2xrsa)
For support in English, ask for help at Nintendo Homebrew on Discord.
What you need
- The latest release of SafeB9SInstaller
- The latest release of boot9strap (standard boot9strap; not the
devkit
file, not thentr
file) - The latest release of Luma3DS (the
.7z
file) - The Homebrew Starter Kit
Instructions
Section I - Prep Work
- Power off your device
- Insert your SD card into your computer
- Copy
boot.firm
from the Luma3DS.7z
to the root of your SD card - Copy the contents of
starter.zip
to the root of your SD card - Create a folder named
boot9strap
on the root of your SD card - Copy
boot9strap.firm
andboot9strap.firm.sha
from the boot9strap.zip
to the/boot9strap/
folder on your SD card -
Copy
arm9.bin
andarm11.bin
from the SafeB9SInstaller.zip
to the root of your SD card - Reinsert your SD card into your device
- Power on your device
Section II - Launching SafeB9SInstaller
- Launch the browser and go to the following URL on your device
http://2xrsa.3ds.guide
- If you are on a New 3DS, New 2DS, or Old 2DS and Wireless Communication is off, you can re-enable the wireless by removing the battery and unplugging the charger for several seconds then booting back up
- If you get the error “This service is not available in your region”, use the System Settings to set your device’s country to match the NAND region you installed with 2.1.0 CTRTransfer
- If you forgot to disable parental controls before CTRTransfering or otherwise cannot access wireless settings, note that the device will autoconnect to any network named
attwifi
with no password - If you get another error, follow this troubleshooting guide
- If the exploit was successful, you will have booted into SafeB9SInstaller
Section III - Installing boot9strap
- Wait for all safety checks to complete
- When prompted, input the key combo given to install boot9strap
- Once it has completed, press (A) to reboot your device
Section IV - Configuring Luma3DS
- Your device should have rebooted into the Luma3DS configuration menu
- If you get a black screen, follow this troubleshooting guide
- Use the (A) button and the D-Pad to turn on the following:
- “Show NAND or user string in System Settings”
- Press (Start) to save and reboot
- If you get an error, just continue the next page
Note that New 3DS users who ended up on 2.1.0 after a CTRTransfer must restore their NAND backup before going to the Finalizing Setup page.
Continue to Finalizing Setup