Gateway : dumping and using retail card savegame on ROM

Discussion in '3DS - Flashcards & Custom Firmwares' started by OuahOuah, Sep 8, 2014.

  1. OuahOuah
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    OuahOuah GBAtemp Advanced Fan

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    Hello.

    Got a Gateway from last week.
    Also have a MK7 retail cartridge.

    Is it possible to use the ROM (scene dump) with the savegame inside the cartridge ?
    Or is it possible to dump with the Gateway feature included and use the savegame from retail cartridge ? Will it be included with the Gateway dump ?

    Thanks a lot :)
     
  2. Cyan

    Cyan GBATemp's lurking knight

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    there's already a gateway feature (in the Gateway menu, press L when booting gateway exploit) to extract save game from a cartridge to .sav file on SD card.
    the only issue is that Gateway ROM loader is compatible only with 512kB saves.

    If Mario kart uses a 256KB EEPROM for the save data, you will not be able to continue your progress with the ROM.

    If the save file 512k, then it will work.
    You will need to dump both your save and your game (as your dumped ROM will contain your unique ID required for the save encryption).


    - dump ROM
    - dump Save
    - move ROM to MicroSD and rename to .3dz
    - rename save to GameID.sav


    You can use the Scene ROM, but you will still need to dump your own cartridge to extract the UniqueID used by your save until now and inject it to the Scene dump, so just play with your own dump.
     
  3. gamesquest1

    gamesquest1 Nabnut

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    yeah its possible to use the save from mario kart on a rom, but you will need to dump your own rom and save via the gateway menu, then rename the rom to .3dz and rename the save from either AMKE.sav to 0004000000030800.sav if its a US copy or AMKP.sav to 0004000000030700.sav if its a EU copy

    slightly ninja'd but yeah what cyan says is true this method doesn't work for all games for any other game follow what he said, but for mario kart it does have a 512kb save and doesn't use 6.x save encryption so you can carry it along fine

    to clarify for other games its also dependent on if the game uses 6.x save encryption, if the game does, then even if the save is 512kb or a card2 game like pokemon you can only continue the save if it was played in classic mode and not on a properly updated console
     
  4. Cyan

    Cyan GBATemp's lurking knight

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    yeah, I didn't talk about the encryption key as I knew mario kart doesn't use it.
    Thanks for talking about it, it could help users finding this thread for their other games.
     
  5. OuahOuah
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    OuahOuah GBAtemp Advanced Fan

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    Ok, thanks, I understand.

    Is there any website displaying the savegame size ?
    'cause will have to do the same for another game (SMB2)...
     
  6. gamesquest1

    gamesquest1 Nabnut

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    pretty sure SMB2(i assume you mean new super mario bros 2) is not 512kb, i tried a while back and remeber the only game i had with 512kb save was mario kart
     
  7. OuahOuah
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    OuahOuah GBAtemp Advanced Fan

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    So... if a game is not 512kb savegame, how can I put a retail cartridge into a rom ? Not possible ?
    Not even mentioning 6.x encryption :P
     
  8. gamesquest1

    gamesquest1 Nabnut

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    nope, only 512kb saves are usable.....at this time
     
  9. Abcdfv

    Abcdfv What comes around goes around.

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    I wish they had been more specific about the exciting save game news. But seeing as MT-card has half broken save editing, that's most likely what they meant.
     
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  10. gamesquest1

    gamesquest1 Nabnut

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    well this was the quote
    so that seems like 2 separate issues savegame editing and retail gamecard users, so it may even solve all 3 issues, retail card users are faced with the 6.x save encryption mostly though, but the fact they said they are revising the whole game save system it will likely fix the mis-sized saves too, but the "save editing" could also refer to people wanting to use CGSE so then only 6.x save encryption would cover both options....so who knows really, but at least 1 issue will be resolved
     
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  11. OuahOuah
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    OuahOuah GBAtemp Advanced Fan

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    Hope so :)