3DS:Alternate Exploits/Installing boot9strap (udsploit)

Required Reading

This method only works on versions 11.3.0 and below. This is because udsploit and safehax was fixed in 11.4.0.

Power off your device
Insert your SD card into your computer
Copy boot.firm and boot.3dsx from the Luma3DS .zip to the root of your SD card
- Replace the files if prompted
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 and rename it to safehaxpayload.bin
Create a folder named 3ds on the root of your SD card, if it does not already exist
Copy udsploit.3dsx to the /3ds/ folder on your SD card
Copy safehax.3dsx to the /3ds/ folder on your SD card
Reinsert your SD card into your device
Power on your device

Open the Homebrew Launcher using any method
Launch udsploit from the list of homebrew
Once you see patching kernel... done, press START to exit udsploit
- This may take several tries
- If it freezes, just force the console to power off by holding the power button, then try again
Launch safehax from the list of homebrew
- If you get a "PM INIT FAILED" error, make sure you ran udsploit with Wireless Communication turned on
- If you *still* get a "PM INIT FAILED" error, try using the r19 release of safehax
- If it freezes, just force the console to power off by holding the power button, then try again
If the exploit was successful, you will have booted into SafeB9SInstaller

When prompted, input the key combo given on the top screen to install boot9strap
Once it is complete, press A to reboot your device
Your device should have rebooted 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, these settings will be left on default settings
- 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
Press START to save and reboot
- If you get an error, just continue to the next page

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.