3DS:Alternate Exploits/Installing boot9strap (MSET9)

Technical Details (optional)
MSET9 is an exploit for the System Settings application developed by zoogie.

What You Need

 * The latest prerelease of MSET9
 * Any 3.x version of Python installed
 * If you are on Linux, you likely already have Python 3. Check by opening a terminal and entering . If this returns a version number, it will work for this guide.

Section I - Prep Work

 * 1) Power on your console with the SD card inserted
 * 2) Open Mii Maker
 * 3) Wait for your console to reach the "Welcome to Mii Maker" screen, then exit Mii Maker
 * 4) Power off your console
 * 5) Insert your console's SD card into your computer
 * 6) Copy everything inside the  folder from the Release   to the root of the SD card, overwriting any existing files
 * 7) Execute the  script on the root of the SD card
 * 8) *Windows: Double-click
 * 9) **If this doesn't work: hold SHIFT and right-click anywhere in the SD card window, then click the option that opens Terminal, PowerShell, or Command Prompt, then type  and press Enter
 * 10) *Linux: open a Terminal window,  to the root of your SD card, then type   and press Enter
 * 11) *You should see a window that says "MSET9 ... SETUP by zoogie"
 * 12) Type, then press Enter to setup MSET9
 * 13) *If you get "does not exist on SD card!" and "Create it/them now? (type yes/no)", follow the troubleshooting guide
 * 14) Once the window says "Done", insert the SD card into your console
 * 15) Power on your console

Section II - MSET9

 * 1) Hover over the System Settings icon using the D-Pad (do not select it yet)
 * 2) Power off, then power on your console
 * 3) Press (A) to launch System Settings
 * 4) Navigate to  ->   ->
 * 5) Do not press any buttons or touch the screen - ensure that you see the Mii Maker icon
 * 6) With the console STILL ON, and without pressing any buttons or touching the screen, remove the SD card from your console
 * 7) Insert the SD card into your computer
 * 8) Execute the  script on the SD card root
 * 9) *Windows: Double-click
 * 10) **If this doesn't work: hold SHIFT and right-click anywhere in the SD card window, then click the option that opens Terminal, PowerShell, or Command Prompt, then type  and press Enter
 * 11) *Linux: open a Terminal window,  to the root of your SD card, then type   and press Enter
 * 12) *You should see a window that says "MSET9 ... SETUP by zoogie"
 * 13) Type, then press Enter to trigger MSET9
 * 14) Insert the SD card into your console without pressing any buttons or touching the screen
 * 15) If the exploit was successful, you will have booted into SafeB9SInstaller
 * 16) *If you get a black screen, the exploit may not have worked properly
 * 17) *If you get a red screen, you didn't copy all contents of the  folder in the Release   to the root of your SD card

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
 * 4) *Luma3DS configuration menu are settings for the Luma3DS custom firmware. Many of these settings may be useful for customization or debugging
 * 5) *For the purpose of this guide, these settings will be left on default settings
 * 6) *If your console shuts down when you try to power it on, ensure that you have copied  from the   folder in the Release   to the root of your SD card
 * 7) Press (Start) to save and reboot
 * 8) *If you get an error, just continue to the next page

Section IV - Uninstalling MSET9

 * 1) Power off your console
 * 2) Insert the SD card into your computer
 * 3) Execute the  script on the root of the SD card
 * 4) *Windows: Double-click
 * 5) **If this doesn't work: hold SHIFT and right-click anywhere in the SD card window, then click the option that opens Terminal, PowerShell, or Command Prompt, then type  and press Enter
 * 6) *Linux: open a Terminal window,  to the root of your SD card, then type   and press Enter
 * 7) *You should see a window that says "MSET9 ... SETUP by zoogie"
 * 8) Type, then press Enter to remove MSET9

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Continue to Finalizing Setup

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"Nintendo 3DS///dbs/ does not exist on SD card!" and "Create it/them now? (type yes/no)" when using Option 1
No title database is present because you never installed any titles from eShop on this SD card.


 * 1) Type "yes", then press Enter
 * 2) Insert the SD card into your console
 * 3) Power on your console
 * 4) Navigate to System Settings -> Data Management -> Nintendo 3DS -> Software -> Reset (visual instructions)
 * 5) Power off your console
 * 6) Insert the SD card into your computer
 * 7) Return to Section I Step 7

[WinError 5] Access is denied
The SD card may be write-locked. If you are using a full-size SD card, ensure that the lock is flipped in the upright position. Otherwise, try ejecting and reinserting your SD card.

UnboundLocalError: cannot access local variable 'haxid1_path'
(Solution TBD)

Red screen after reinserting SD card (Section II Step 11)
You may be missing  from the root of your SD card, or the file may be corrupted. Copy it from the  folder in the MSET9   replacing any existing files.

Alternatively, your SD card may be improperly formatted or partitioned. Try reformatting your SD card.

assert(id0_count
1) AssertionError === You have multiple ID0 folders. To examine the correct folder, follow these instructions:


 * 1) Rename the   folder to
 * 2) Reinsert your SD card into your console
 * 3) Power on your console
 * 4) Wait for the console to generate the SD card data
 * 5) * Your applications will have disappeared. This is normal and will be resolved shortly
 * 6) Power off your console
 * 7) Insert your SD card into your computer
 * 8) Navigate to the   folder on your SD card
 * 9) Write down the first few characters of the folder you see
 * 10) * This is your true ID0 we will keep in the real Nintendo 3DS folder
 * 11) Delete the ID0 from the   folder
 * 12) Move the true ID0 folder from the   folder to the   folder
 * 13) If it exists, move the   folder from the   folder to the   folder

assert(mii_ok
1) AssertionError === Your SD card does not have Mii Data.


 * 1) Power on your console with the SD card inserted
 * 2) Open Mii Maker
 * 3) Wait for your console to reach the "Welcome to Mii Maker" screen, then exit Mii Maker
 * 4) Power off your console