3DS:Alternate Exploits/Installing boot9strap (safecerthax)

Required Reading

safecerthax is compatible with all Old 3DS and Old 2DS devices in all regions.

Please note the following: If your (Right/Left Shoulder), (D-Pad Up) or (A) buttons do not work, or your ISP is rerouting DNS changes, you will need to use an alternate method. This exploit will not work on the New 3DS, New 3DS XL, or New 2DS XL. Please ensure that the device you are modding is an Old 3DS, Old 3DS XL, or Old 2DS before continuing.

What You Need

• The latest release of SafeB9SInstaller (direct download)
• The latest release of boot9strap (direct download)
• The latest release of Luma3DS (the Luma3DS .zip file)

Instructions

Section I - Prep Work

1. Power off your device
2. Insert your SD card into your computer
3. Copy boot.firm and boot.3dsx from the Luma3DS .zip to the root of your SD card
4. Create a folder named boot9strap on the root of your SD card
5. Copy boot9strap.firm and boot9strap.firm.sha from the boot9strap .zip to the /boot9strap/ folder on your SD card
6. Copy SafeB9SInstaller.bin from the SafeB9SInstaller .zip to the root of your SD card
7. Reinsert your SD card into your device
8. Power on your device

Section II - safecerthax DNS

1. Launch the System Settings application
2. Navigate to Internet Settings -> Connection Settings
3. Click on your network connection slot and navigate to Change Settings -> Next Page (right arrow) -> DNS
4. Set "Auto-Obtain DNS" to "No", then click Detailed Setup
5. Set both the Primary DNS and Secondary DNS to Oops we don't have a DNS yet
6. Click OK, then click Save
7. When prompted, click "Test" to perform the connection test
   • The test should succeed
8. Power off your device

Section III - safecerthax

1. With your device still powered off, hold the following buttons: (Left Shoulder) + (Right Shoulder) + (D-Pad Up) + (A), then press (Power)
   • Keep holding the buttons until the device boots into Safe Mode
2. Press "OK" to accept the update
   • There is no update. This is part of the exploit
3. Press "I accept" to accept the terms and conditions
   • The update should fail and an error message should appear
   • If the update does not fail, it is possible that your ISP is rerouting DNS changes. Try another internet connection, or follow an alternate method.
4. Press "OK" to close the error message
5. 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

Section IV - Installing boot9strap

1. When prompted, input the key combo given on the top screen to install boot9strap
2. Once it is complete, press (A) to reboot your device
3. Your device should have rebooted into the Luma3DS configuration menu
   • If your device 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
4. Press (Start) to save and reboot
   • If you get an error, just continue to the next section

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.

Section VI - Restoring default DNS

1. Launch the System Settings application
2. Navigate to Internet Settings -> Connection Settings
3. Click on your network connection slot and navigate to Change Settings -> Next Page (right arrow) -> DNS
4. Set "Auto-Obtain DNS" to "Yes"
5. Click OK, then click Save
6. When prompted, click "Test" to perform the connection test
   • The test should succeed
7. Power off your device

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Continue to Finalizing Setup