3DS:Alternate Exploits/Installing boot9strap (MSET9)

General Informations

THE ULTIMATE GIFT OF LENNY is an exploit named MSET9, developed by zoogie.

What You Need

• The latest release of MSET9 (currently a Pre-release)
• Python installed (Download link)

Instructions

Section 1 - Prep Work

1. With the SD card inserted, power on your console
2. Open Mii Maker
3. Wait for your console to reach the main menu
4. Power off your console
5. Insert your console's SD card into your computer
6. Copy everything inside the SDMC folder in the Release .zip to the root of your console's SD card, overwrite/merge if asked
7. Execute the mset9.py script on the SD card root
   • Windows Users: Double-click mset9.bat
     • If that doesn't work, shift+right-click empty space in the file explorer while in the root of your consoles SD card and enter py -3 mset9.py
   • Linux Users: open a Terminal in the root of your console's SD card and enter python3 mset9.py
   • macOS Users: Live-boot Linux, macOS doesn't like funny
8. The (newly-opened) window should now show MSET9 ... SETUP by zoogie
   • If it doesn't, make sure you're executing the script on the root of your SD card
9. Enter 1, then press ENTER/RETURN
10. Insert your console's SD card into your console
11. Power on your console

Section 2 - Whatever happens here

Follow these steps exactly like they are written or the exploit may not work!

1. Hover over the System Settings icon using the D-Pad
2. Power off your console
3. Power on your console
4. Launch System Settings
5. Go to Data Management -> Nintendo 3DS -> Extra Data
6. Don't press any buttons, or touch the screen, and make sure the Mii Maker icon is showing
7. Take your console's SD card out of your console without turning it off
8. Insert the SD card into your computer
9. Execute the mset9.py script on the SD card root
   • Windows Users: Double-click mset9.bat
     • If that doesn't work, shift-click empty space in the file explorer while in the root of your consoles SD card, select Open in Powershell/Terminal and enter py -3 mset9.py there
   • Linux Users: open a Terminal in the root of your console's SD card and enter python3 mset9.py
10. The (newly-opened) window should now show MSET9 ... SETUP by zoogie
    • If it doesn't, make sure you're executing the script on the root of your SD card
11. Enter 2, then press ENTER/RETURN
12. Insert your console's SD card cleanly into your console while it's still turned on
13. If the exploit was successful, you will have booted into SafeB9SInstaller
    • If you get a black screen, check the issues of the repository
    • If you get a red screen, you didn't copy the files from the SDMC folder to the SD root correctly, to be precise, SafeB9S.bin

Section III - 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 console
3. Your console 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 console shuts down when you try to power it on, ensure that you have copied boot.firm from the SDMC folder in the Release .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 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.

Section IV - Uninstalling MSET9

1. Power off your console
2. Insert your console's SD card into your computer
3. Execute the mset9.py script on the SD card root
   • Windows Users: Double-click mset9.bat
     • If that doesn't work, shift-click empty space in the file explorer while in the root of your consoles SD card and enter py -3 mset9.py
   • Linux Users: open a Terminal in the root of your console's SD card and enter python3 mset9.py
   • macOS Users: Live-boot Linux, macOS doesn't like funny
4. The (newly-opened) window should now show MSET9 ... SETUP by zoogie
   • If it doesn't, make sure you're executing the script on the root of your SD card
5. Enter 4, then press ENTER/RETURN

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Continue to Finalizing Setup