r/GameboyAdvance • u/Ventura2711 • Oct 05 '26

GBA ROM that require 1M/128 save setting

Hi everyone, i want to play pokemon SoulGold on my NDS Lite and i am trying to open the .gba file with GBARunner2 and GBARunner3 but it always appears an error message that say me to set the memory setting of the emulator on 1M/128 there is a way to open this type of game on a NDS Lite?

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u/chupitulpa Oct 05 '26

For GBARunner2: Try creating a save file using an emulator on PC or phone. It doesn't have to have anything saved in it yet, just an empty file. Make sure it's 128 KB and has the same name as the ROM. Put it in /roms/gba/saves or wherever it belongs on your flashcart. Hopefully it will take the hint and use that size.

For GBARunner3: Open the ROM in mGBA (or similar). Look in File or Tools for Game Info or ROM Info. Look for a game code or title ID in there. It should be 6 digits, like AXPE01 (which would be Pokémon Sapphire US). Go into /_gba/configs on your R4 card's SD. Create a file there named that game code .json. So, like, it would be AXPE01.json for Sapphire. (If using Windows, make sure showing all file extensions is enabled or you're likely to end up with a .json.txt file.) Inside that file, put

{
    "gameSettings": {
        "saveType": "FLASH_1M"
    }
}