若需英語支援,請於 Discord 上的 Nintendo Homebrew 伺服器發問。

Technical Details (optional)

To launch custom code, we exploit a flaw in the DSiWare Data Management window of the Settings application.

To accomplish this, we use your system’s encryption key (movable.sed) to build a DSiWare backup that exploits the system.

For a more technical explanation, see here.

Compatibility Notes

這些操作在美、歐、日、韓版可用,可透過系統版本號末尾的 「U、E、J、K」 字元來辨別。

如果您的主機為台灣版主機(系統版本號以 T 結尾的主機),請見此頁面


  • 您自 Seedminer 步驟中所取得的 movable.sed 檔案

第一節 — 準備工作

In this section, you will copy the files needed to trigger the BannerBomb3 exploit onto your device’s SD card.

  1. 關閉您的主機
  2. 將 SD 卡插入至電腦中
  3. Open Bannerbomb3 Injector on your computer
  4. Upload your movable.sed using the “Choose File” option
  5. Click “Build and Download”
    • This will download an exploit DSiWare called F00D43D5.bin and a payload called bb3.bin inside of a zip archive (
  6. Copy bb3.bin from to the root of your SD card
    • 「SD 卡的根目錄」指的是你的 SD 卡含有 Nintendo 3DS 資料夾的目錄,而非該資料夾內部
  7. Navigate to Nintendo 3DS -> <ID0> -> <ID1> on your SD card
    • <ID0> is the 32-letter folder name that you copied in Seedminer
    • <ID1> is a 32-letter folder inside of the <ID0>
  8. Create a folder named Nintendo DSiWare inside of the <ID1>
    • If you already had the folder and there are any existing DSiWare backup files (<8-character-id>.bin) inside, copy them to your PC and remove them from your SD card
  9. Copy the F00D43D5.bin file from to the Nintendo DSiWare folder

Section II - Hardware Button Check

In this section, you will test the SAFE_MODE function of your device. This will determine which method you will follow in the next page.

  1. With your device still powered off, hold the following buttons: (Left Shoulder) + (Right Shoulder) + (D-Pad Up) + (A), and while holding these buttons together, power on your device
    • Keep holding the buttons until the device boots into Safe Mode (a “system update” menu)
  2. If prompted to update, press Cancel
    • Your device will power off
    • If the device boots to the HOME Menu, just power off your device

Next steps: Choose an exploit

If your device booted into Safe Mode and prompted to you to do a system update in Section II, Safe Mode is working on your device.

If your device booted into Safe Mode, continue to Installing boot9strap (USM)

If your device did NOT boot into Safe Mode, continue to Installing boot9strap (Fredtool)