How do save editors work?

Discussion in '3DS - ROM Hacking, Translations and Utilities' started by MyLegGuy, Sep 21, 2015.

  1. MyLegGuy
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    MyLegGuy Moron

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    Is there an explanation on how save editors for 3ds games work somewhere? Or even a tutorial on how to make your own?
     
  2. Gocario

    Gocario GBAFail'd

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    1. Extract savedata from cartridge.
    2. Open & Edit savedata with an hexeditor.
    3. Reinject the savedata.
    You have to do your own research on the data's offset.
     
    Minnow likes this.
  3. MyLegGuy
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    MyLegGuy Moron

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    Thanks for the info.
     
  4. SaagiBols

    SaagiBols The AnalSavior

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    they edit hex bytes... if u have to ask how this works, u dfntly cant make your own soooo...
     
  5. MyLegGuy
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    MyLegGuy Moron

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    DO you think everybody you has made a save editor for the 3ds knew how 3ds saves work and how to change them the instant they gained interest?
     
  6. SaagiBols

    SaagiBols The AnalSavior

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    an idea of how this kind of things work is all you need sooo... im not trying to offense you dude! if you ever make a save editor for any 3ds game ill be grateful to you and be happy to use it:]... im just saying if you know some kind of hex save edits just post that! and leave the save-editor creating to some1 else....
     
  7. Spork Schivago

    Spork Schivago Advanced Member

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    Aren't the save games encrypted? Don't they need to be decrypted first?
     
  8. Arcanuskun

    Arcanuskun GBAtemp Regular

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    when you extract the saves (by using savedatafiler or any methods) usually they are decrypted already, unless another layer of encryption is present, like in MH4U saves
     
  9. Spork Schivago

    Spork Schivago Advanced Member

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    Thank you. So the save data that's stored in the NAND or on the SD card is encrypted? When using the Gateway to extract the save data from a retail cartridge, it's decrypted generally? Unless there's that other layer of encryption like in MH4U saves?