3DS:Alternate Exploits/Installing boot9strap (safecerthax)

Technical Details

For technical details on the exploit that you will be using on this page, see here.

safecerthax is compatible with all Old 3DS and Old 2DS consoles in all regions on system versions 1.0.0 through 11.14.0.

Power on your console
Once you see the HOME Menu, press the (Left Shoulder) and (Right Shoulder) buttons at the same time
- The camera applet should appear
- If the console crashes, just continue to the next section
Power off your console

If the camera did NOT appear, you cannot follow this method as your shoulder buttons are broken

Insert your SD card into your computer
Copy boot.firm and boot.3dsx from the Luma3DS .zip to the root of your SD card
- The root of the SD card refers to the initial directory on your SD card where you can see the Nintendo 3DS folder, but are not inside of it
Create a folder named boot9strap on the root of your SD card
Copy boot9strap.firm and boot9strap.firm.sha from the boot9strap .zip to the /boot9strap/ folder on your SD card
Copy SafeB9SInstaller.bin from the SafeB9SInstaller .zip to the root of your SD card
Reinsert your SD card into your console
Power on your console

Launch the System Settings application
Navigate to Internet Settings -> Connection Settings
Click on your network connection slot and navigate to Change Settings -> Next Page (right arrow) -> Proxy Settings
Set “Proxy Settings” to “Yes”, then click Detailed Setup
Set the Proxy Server to ssloth.nintendohomebrew.com, and the Port to 8080
Click OK, then click Save
When prompted, click “Test” to perform the connection test
- The test should succeed
Click “OK” to continue
Power off your console

With your console still powered off, hold the following buttons: (Left Shoulder) + (Right Shoulder) + (D-Pad Up) + (A), and while holding these buttons together, power on your console
- Keep holding the buttons until the console boots into Safe Mode (a “system update” menu)
Press “OK” to accept the update
- There is no update. This is part of the exploit
Press “I accept” to accept the terms and conditions
The update will eventually fail, with the error code 003-1099. This is intended behaviour
Press “OK” to close the error message
If the exploit was successful, you will have booted into SafeB9SInstaller
- If the console freezes or crashes, force power off the console, then retry this section

When prompted, input the key combo given on the top screen to install boot9strap
- If a step on the lower screen has red-colored text, and you are not prompted to input a key combo, follow this troubleshooting guide
Once it is complete, press (A) to reboot your console
Your console should have booted into the Luma3DS configuration menu
- Luma3DS configuration menu are settings for the Luma3DS custom firmware. Many of these settings may be useful for customization or debugging
- For the purpose of this guide, leave these options on the default settings (do not check or uncheck anything)
- If your console shuts down when you try to power it on, ensure that you have copied boot.firm from the Luma3DS .zip to the root of your SD card
Press (Start) to save and reboot

At this point, your console will boot to Luma3DS by default.

Luma3DS does not look any different from the normal HOME Menu. If your console has booted into the HOME Menu, it is running custom firmware.
On the next page, you will install useful homebrew applications to complete your setup.

Launch the System Settings application
Navigate to Internet Settings -> Connection Settings
Click on your network connection slot and navigate to Change Settings -> Next Page (right arrow) -> Proxy Settings
Set “Proxy Settings” to “No”
Click OK, then click Save
When prompted, click “Test” to perform the connection test
- The test should succeed
Power off your console