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Reset the game (You will lose your save data, so make sure to use a game you don’t care about) and push home. Open a Virtual console Gameboy Color game, and open the virtual console menu (Tapping the touch screen). Next, you’ll have to put the SD card back into your 3ds, and turn it on. You will also need to copy a GBC rom, with the filename “rom.gbc” (without the quotes, also into the root of the sd card). Next, you will need to download GBCRomSwap from the link at the bottom of the post, and copy the file code.bin to the root of your SD card(that means its not in a folder, its directly on the sd card). To begin, you will need to remove the SD card from your 3DS, and insert it into your computer. There will be a list of required materials at the bottom.
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That includes games from the ambassador program. And finally, you will already need to own a GBC game. Secondly, this requires a firmware version on or before 9.5.0-22.
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Before you begin, please note that this requires an original 3DS or 3DS XL, the n3DS will not work.
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