Installing boot9strap (Seedminer)


For support in English, ask for help at Nintendo Homebrew on Discord.
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Required Reading

To install boot9strap on your 11.8.0 device, we exploit an oversight in the security restrictions applied to “DSiWare” applications.

To accomplish this, we use a tool called Seedminer to calculate the DSiWare encryption key (movable.sed) for your device.

We then use this DSiWare encryption key to decrypt a compatible DSiWare application and inject an exploit into it to run our own code.

If this key were completely random, the encryption key would be impossible to break on current computing hardware. Fortunately, the first half of the key (movable_part1.sed) is actually mathematically related to your device’s Friend Code, allowing us to break the encryption. For information on how Seedminer works, please see this presentation.

Note that this tool requires a PC with a powerful graphics card to break your device’s DSiWare encryption. If you do not have access to one of these, there exists several online helper services where a volunteer running automated software will do this for you.

To use the magnet links on this page, you will need a torrent client like Deluge.

To extract the .7z files linked on this page, you will need a file archiver like 7-Zip or The Unarchiver.

This process will overwrite your DSiWare game’s save file!

What You Need

Instructions

Section I - Prep Work

  1. Launch System Settings on your device
  2. Navigate to Data Management -> DSiWare
  3. Under the “System Memory” section, select your compatible DSiWare game
  4. Select “Copy”, then select “OK”
    • If prompted, overwrite any existing copy
  5. Power off your device
  6. Insert your SD card into your computer
  7. Copy boot.firm from the Luma3DS .7z to the root of your SD card
  8. Copy boot.nds (B9STool) to the root of your SD card
  9. Copy boot.3dsx to the root of your SD card
  10. Navigate to the Nintendo 3DS folder on your SD card
  11. Copy the 32 character long name of the folder you see
    • If you see multiple folders like this, perform the following:
    • Rename the Nintendo 3DS folder to BACKUP_Nintendo 3DS
    • Reinsert your SD card into your device and power on your device
    • Wait for the device to generate the SD card data
    • Power off your device and reinsert your SD card into your computer
    • Navigate to the Nintendo 3DS folder on your SD card
    • Copy the 32 character long name of the folder you see
    • Delete the Nintendo 3DS folder
    • Rename the BACKUP_Nintendo 3DS folder to Nintendo 3DS
  12. Paste your 32 character long folder name into a document you can reference later
    • This folder name is also known as your “ID0”
  13. Navigate to <ID0> -> <32-character-id> -> Nintendo DSiWare on your SD card
  14. Copy <8-character-id>.bin to a folder on your computer
  15. Reinsert your SD card into your device
  16. Power on your device
  17. Go to your Friend List (the orange Face Icon in the top row of your Home Menu)
    • If you receive an error and are kicked out of the menu, you either must create a new Mii or your console cannot connect to Nintendo’s servers (due to a ban or connection issues)
  18. Find your Mii profile, then find the “Friend Code” field on the top screen

Section II - Seedminer

  1. Open Bruteforce Movable on your computer
    • This site can automate the retrieval of movable_part1.sed (using a bot 3DS console) and the breaking of your device’s DSiWare encryption (using a volunteer’s computer to run Seedminer)
    • If you already have access to a 3DS capable of launching the Homebrew Launcher, you can manually retrieve your movable_part1.sed using that device by following these instructions
    • If you already have access to a PC with a powerful graphics card, you can manually calculate your movable.sed using it by following these instructions
    • If the automated service is nonfunctional and you cannot do one or both of those manually, join Nintendo Homebrew on Discord and ask (in English) for someone there to assist you
  2. Enter your device’s Friend Code (with no spaces or dashes) into the “Your friend code” field
  3. Paste your device’s 32 character long folder name into the “Your ID0” field
  4. Complete the “I’m not a robot” captcha
  5. Select “Go”
  6. When prompted, use the “Register Friend” button on your device to add the friend code of the bot 3DS console
  7. Wait for the site to update
    • If it does not, refresh the page
  8. Select “Continue”
  9. Wait for the process to complete
    • This can take a while (up to an hour in some cases)
    • If you are still waiting after an hour, join Nintendo Homebrew on Discord and ask (in English) for someone there to assist you
  10. When the process has completed, download your movable.sed file from the site

Section III - DSiWare Injection

  1. Open TADpole Online on your computer
  2. Extract the contents of the DSiWare exploit injection .zip to a folder on your computer
  3. Select your <8-character-id>.bin for the “DSiWare.bin” field
  4. Select your movable.sed file for the “movable.sed” field
  5. Select the downloaded ctcert.bin file for the “ctcert.bin” field
  6. Select the extracted game_<your-region>.app file for the “game_XXX.app” field
  7. Select the extracted public_<your-region>.sav file for the “public_XXX.sav” field
  8. Select “Start!”
  9. Wait for the process to complete
  10. Rename the created <8-character-id>.bin.patched file to <8-character-id>.bin
    • Do not confuse this file with the <8-character-id>.bin file from earlier
  11. Power off your device
  12. Insert your SD card into your computer
  13. Navigate to Nintendo 3DS -> <ID0> -> <32-character-id> -> Nintendo DSiWare on your SD card
  14. Copy the new <8-character-id>.bin file to the Nintendo DSiWare folder on your SD card
    • Overwrite the old <8-character-id>.bin file when prompted
  15. Reinsert your SD card into your device
  16. Power on your device
  17. Launch System Settings on your device
  18. Navigate to Data Management -> DSiWare
  19. Under the “SD Card” (or “microSD Card”) section, select your compatible DSiWare game
  20. Select “Copy”, then select “OK”
    • This may have caused your game to appear as “Sudoku” or “4Swords” depending on region; this is normal
  21. Exit System Settings

Section IV - Flashing FIRM

  1. Launch b9sTool by starting your DSiWare game on your device
    • If prompted, you may have to tap the screen to trigger the exploit
  2. Select “Install boot9strap” and confirm
  3. Exit b9sTool, then power off your device
    • You may have to force power off by holding the power button

Section V - Configuring Luma3DS

  1. Boot your device while holding (Select) to launch the Luma configuration menu
  2. Use the (A) button and the D-Pad to turn on the following:
    • “Show NAND or user string in System Settings”
  3. Press (Start) to save and reboot

Continue to Finalizing Setup