How to Patch DS Games

Written by alexander poirier
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How to Patch DS Games
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DS flash carts allow users to play backups of their DS games on their Nintendo DS console. Some backup game files, however, do not work with some flash carts and need to be unpacked and patched in order for the backup file to be playable. Luckily, patching a Nintendo DS game file is an easy process that can be done in a few simple steps.

Skill level:


  1. 1

    Open your web browser and navigate to a website that offers Nintendo DS rom unpacking software. DSLazy, DSBuff and NDS Unpack are all programs that perform this service. Download and install the program on your computer.

  2. 2

    Navigate to a website that offers the arm7.bin file for download and download the file. This is the file that will be used to patch your DS game file.

  3. 3

    Run the DS unpacking software that you downloaded in Step 1. Click the "Browse" button and locate the ROM file you would like to patch. Click the "OK" button.

  4. 4

    Click the "Unpack" button. Your unpacker program will unpack your ROM file and open its contents in a folder titled "NDS_UNPACK" in a new window.

  5. 5

    Copy the arm7.bin file that you downloaded in Step 2 into this folder. Close the window.

  6. 6

    Click the "Packer" button on the unpacker program's menu. Create a new name for your backup game file and click the "OK" button. Allow several seconds for the program to reassemble your DS game file.

Tips and warnings

  • Only use this process to patch backup game files of games that you own.

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