Installing boot9strap (USM)
Seedminer-based methods have been replaced by easier, safer methods. Please return to Get Started unless you have a legitimate reason to follow this page.
Required Reading
In order to exploit the SAFE_MODE firmware of our system, we need to inject an exploited WiFi profile.
We can do this using an existing exploit, BannerBomb3.
To accomplish this, we use your system’s encryption key (movable.sed) to build a DSiWare backup that exploits the system in order to inject the exploited WiFi profile to your connections list.
Once the WiFi profile has been injected, we will use SAFE_MODE, which is a recovery feature present on all 3DS consoles, to activate the exploited WiFi profile.
These instructions work on USA, Europe, Japan, and Korea region consoles as indicated by the letters U, E, J, or K after the system version.
If your (Right/Left Shoulder), (D-Pad Up) or (A) buttons do not work, you will need to use a Legacy Method. For assistance with this matter, join Nintendo Homebrew on Discord and ask, in English, for help.
What You Need
Section I - Prep Work
- If your device is powered on, power off your device
- Open unSAFE_MODE-bb3 tool on your computer
- Upload your movable.sed using the “Choose File” option
- Click “Download unSAFE_MODE-bb3 archive”
- This will download an exploit DSiWare called
F00D43D5.bin
and a SAFE_MODE exploit data file calledusm.bin
inside of a zip archive (unSAFE_MODE-bb3.zip
)
- This will download an exploit DSiWare called
- Insert your SD card into your computer
- Copy
boot.firm
andboot.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
- Copy
usm.bin
fromunSAFE_MODE-bb3.zip
to the root of your SD card - Navigate to
Nintendo 3DS
-><ID0>
-><ID1>
->Nintendo DSiWare
on your SD card- The
<ID0>
will be the same one that you used in Seedminer - The
<ID1>
is a 32 character long folder inside of the<ID0>
- If
Nintendo DSiWare
does not exist, create it inside of the<ID1>
- The
- If there are any existing DSiWare backup files (
<8-character-id>.bin
) in this folder, move them to your PC- This will leave you with an empty Nintendo DSiWare folder. Moving the files to your PC ensures you don’t delete any intentional backups
- Copy the
F00D43D5.bin
file fromunSAFE_MODE-bb3.zip
to theNintendo DSiWare
folder
Section II - BannerBomb3
- Reinsert your SD card into your device
- Power on your device
- Launch System Settings on your device
- Navigate to
Data Management
->DSiWare
- Click on the SD Card section
- Your bottom screen should flash Red and then the system will reboot to home menu a few seconds later. This means the exploit profile was successfully copied
- If the bottom screen does not flash Red, the exploit profile was not copied and you will not be able to complete the next section. Ensure that your files are properly placed, then try again
- Power off your device
Section III - unSAFE_MODE
- 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
- 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 error code
003-1099
. This is intended behaviour - When asked “Would you like to configure Internet settings?”, select “Yes”
- On the following menu, navigate to
Connection 1
->Change Settings
->Next Page (right arrow)
->Proxy Settings
->Detailed Setup
- This is a visual representation
- Once you see
B9S install SUCCESS
on the top screen, press any button to reboot to Luma Configuration
Section IV - Configuring Luma3DS
- Your device should automatically show the Luma Configuration menu
- Use the (A) button and the D-Pad to turn on the following:
- “Show NAND or user string in System Settings”
- Press (Start) to save and reboot
- Your device should load the Home Menu after a short delay. If you get a black screen lasting longer than 5 minutes, follow this troubleshooting guide
Section V - Restoring WiFi Configuration Profiles
- Launch System Settings on your device
- Navigate to
Data Management
->DSiWare
- Click on the SD Card section
- Your bottom screen should flash Green and then the system will reboot to home menu a few seconds later. This means your WiFi configuration profiles were successfully restored
- Power off your device
- Insert your SD card into your computer
- Navigate to
Nintendo 3DS
-><ID0>
-><ID1>
->Nintendo DSiWare
on your SD card - Delete
F00D43D5.bin
from your Nintendo DSiWare folder