Is there any way to restore .sav after formating system memory?

Discussion in '3DS - ROM Hacking, Translations and Utilities' started by Cat Scarlet, Mar 10, 2016.

  1. Cat Scarlet
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    Cat Scarlet Member

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    I formated my 3ds system memory by mistake, then I lost the save data of ditigal games downloaded from eshop.
    Before I formated it, I backuped the nand.bin and all the files of sdcard to PC.
    I can find the *.sav. but when I copy the sav to 3ds after I redownloaded games from eshop, it came out with 'Save data Error'.

    I tried using SDF(SAVeFL), and found it seems that I should use it to backup the savedata before formating.

    Is there any way to restore .sav after formating system memory? Or should I restore the NAND and use SDF to backup the savedata?

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  2. Guipradi

    Guipradi GBAtemp Regular

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    I would want the same answer please. I understand that .sav files have an unique "Id" for every console. So formatting the 3ds changes the console ID so save files with not matching IDs are not compatible. But I could be wrong
     
  3. Omegablu

    Omegablu We shall not yield to the Kingdom of Nohr!

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    A nand back up would fix it, so long as you have all of your original SD content intact. The nand contains the unique key that your saves were signed with, so just copy the Nintendo 3ds folder back to the root of your SD. Just keep mind that any games you downloaded since formatting won't work. Out of curiosity, are you working in Sysnand or Emunand? If you are working in Sysnand be careful.
     
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  4. Cat Scarlet
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    Cat Scarlet Member

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    I tried restoring my NAND.bin to Sysnand. The directory turned to the right, but every app disappeared. I don't know what was wrong. I tried again and again these days made me tired. I gave up. All I lost is just some good savefile such as The legend Of Dark Witch 2, but now I have the skill to beat the game easily and smoothly. I will play these games again to get a new and better savefile, and try to export it with SDF. It's very luck that I don't play games which need collecting forever such as MH series, lol.

    PS:
    I know that the savedata files has a ID, and the ID is the unique key while the system initialized every time. I wonder if the savedata is encrypt by the ID, or it just saved the ID.
    According to SDF, It seems that there is a way to export the savedata without the ID, and import it to another with a different ID, so is there a strong necessary to use a savedata with the related ID, or is there a way just to delete the old ID in savedata and import it with new ID?
     
  5. Omegablu

    Omegablu We shall not yield to the Kingdom of Nohr!

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    When you export a save using a homebrew, it does not have the key. Saves copied from the Nintendo 3ds folder do have the key. If you use svdt or another similar tool the exported save can be reimported to any copy of the game, digital or cart so long as you can run homebrew on the system.
     
  6. Cat Scarlet
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    Cat Scarlet Member

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    That will be convenient.
     
  7. Guipradi

    Guipradi GBAtemp Regular

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    I'm trying with my Pokemon Alpha Saphire copy using Save Data Manager

    EdIt: Nope, no luck. It tells me "the saved data is not compatible with this version..." Basically, nope What I'll do is transfer all my pokemon from one sav to another. That'll do
     
    Last edited by Guipradi, Mar 11, 2016
  8. Omegablu

    Omegablu We shall not yield to the Kingdom of Nohr!

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    Some save data managers can be really really unstable. Just keep trying.
     
  9. Cat Scarlet
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    Cat Scarlet Member

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    I just found that if some files is modified by 3DS, the 'modified time' won't update, that makes most of the tools for sync and backup on PC can't work well.
    I used BCompare to sync files yesterday and it made sad work. Try diff files with contents, not 'modified time', or there will be a mess of files.
     
  10. Guipradi

    Guipradi GBAtemp Regular

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    I'll keep trying. Thanks for the hopes

    — Posts automatically merged - Please don't double post! —

    I didnn't understand very well, sorry. And Thanks for helping

    — Posts automatically merged - Please don't double post! —

    OMG!!!! IT REALLY WORKED!!!
    I have all my data back!
    Thank you Cat and Omega. I ended up using JK's Save Manager (So awesome) It worked on first try
     
    Last edited by Guipradi, Mar 11, 2016
  11. Cat Scarlet
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    Cat Scarlet Member

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    It sounds sweet. I'm downloading JKSM. I will try it after work.
     
  12. Omegablu

    Omegablu We shall not yield to the Kingdom of Nohr!

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    JK's save manager is what I use. Very user friendly and the whole save slot thing is awesome. Glad you got it working Gill.
     
  13. Cat Scarlet
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    Cat Scarlet Member

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    I tried JK's save manager, but I didn't figure out how to import the old savedata, as the other tools.
     
  14. Omegablu

    Omegablu We shall not yield to the Kingdom of Nohr!

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    It can be difficult for that, I won't deny.
     
  15. Cat Scarlet
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    Cat Scarlet Member

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    The hard point is, I can't get and EXPORT my save. I have the *.SAV files only.
     
  16. viral777

    viral777 mecha connoisseur

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    havin the same problem too. I only copied the folder of the game ID that contains the .sav file. sadly I think all hope is lost.