Backup dsiware save?

Discussion in '3DS - Homebrew Development and Emulators' started by cearp, Jan 4, 2016.

  1. cearp
    OP

    cearp the ticket master

    Member
    7,550
    4,813
    May 26, 2008
    Tuvalu
    Hi, I know I can backup dsiware to a cia (thanks to my FunkyCIA lol)
    but, I want to backup the SAVE of it.
    I tried with savedatafiler, but I don't think I saw dsiware saves in it...

    (I formatted my sysnand and wanted to backup my advance wars days of ruin save - so that I could restore it afterwards, but I don't think it is possible with the current tools so I just chose to lose it, not a huge deal)
     
    Last edited by cearp, Jan 4, 2016
  2. redunka

    redunka GBAtemp Regular

    Member
    297
    139
    Nov 26, 2014
    Russia
    IIRC, DSiWare saves are in TWL NAND partition alongside with app itself.
    That partition can be dumped and decrypted using Decrypt9.
    Warning: Spoilers inside!
    But I'm not sure if save can be transferred that way.
    I'm currently have similar problem with transferring GBA saves after formatting.
     
  3. cearp
    OP

    cearp the ticket master

    Member
    7,550
    4,813
    May 26, 2008
    Tuvalu
    yeah, in twl firm nasty...
    how to even put it back encrypted if i even got it out? :(
     
  4. redunka

    redunka GBAtemp Regular

    Member
    297
    139
    Nov 26, 2014
    Russia
    cearp likes this.
  5. cearp
    OP

    cearp the ticket master

    Member
    7,550
    4,813
    May 26, 2008
    Tuvalu
    hmmm... on the ctr fat16 partition, nand contents are not encrypted to the console (unlike the sd card)
    so, it might be that simple... :) thanks!
    i lost my advance wars save but it was my choice. i'll keep this in mind!
     
    redunka likes this.
  6. redunka

    redunka GBAtemp Regular

    Member
    297
    139
    Nov 26, 2014
    Russia
    Yes, and content of twl fat16 partition also isn't encrypted.
    You can even dump dsiware app, rename it to .nds and test it with no$gba (it most likely will be unplayable though).
    Warning: Spoilers inside!
     
    Last edited by redunka, Jan 4, 2016
    cearp likes this.
  7. cearp
    OP

    cearp the ticket master

    Member
    7,550
    4,813
    May 26, 2008
    Tuvalu
    cool :) thanks for the info!
     
    redunka likes this.
  8. MelonGx

    MelonGx GBAtemp Advanced Maniac

    Member
    1,634
    439
    Jan 8, 2009
    China
    We can easily export and import TWL saves with GodMode9 now.

    GodMode9 -> [2] SYSNAND TWLN -> title -> 00030004 -> <GameID> -> data -> public.sav

    Just do the copy & paste.

    But how to convert .tmd and .app into .NDS?
     
    Last edited by MelonGx, Oct 16, 2016
    cearp likes this.
  9. redunka

    redunka GBAtemp Regular

    Member
    297
    139
    Nov 26, 2014
    Russia
    You don't have to convert anything. :)
    Simply rename .app to .nds, that's all you need.
     
  10. MelonGx

    MelonGx GBAtemp Advanced Maniac

    Member
    1,634
    439
    Jan 8, 2009
    China
    Tested it on DSTWO.
    It has icon but white screen when launching.
     
  11. redunka

    redunka GBAtemp Regular

    Member
    297
    139
    Nov 26, 2014
    Russia
    DSTWO runs in NTR mode, so it can't run DSiWare titles.
     
  12. MelonGx

    MelonGx GBAtemp Advanced Maniac

    Member
    1,634
    439
    Jan 8, 2009
    China
    Then.....CycloDS iEvo on 1.4.2?
    But unfortunately it only has USA/EUR region and all of my dumps is JPN.
     
    Last edited by MelonGx, Oct 16, 2016
  13. MelonGx

    MelonGx GBAtemp Advanced Maniac

    Member
    1,634
    439
    Jan 8, 2009
    China
    (double post)
     
  14. redunka

    redunka GBAtemp Regular

    Member
    297
    139
    Nov 26, 2014
    Russia
    Yeah, there's not so many options to run DSi-exclusive stuff. :(
    Either CycloDS iEvo or no$gba emulator (which has poor compatibility).
     
    MelonGx likes this.
  15. MelonGx

    MelonGx GBAtemp Advanced Maniac

    Member
    1,634
    439
    Jan 8, 2009
    China
    Unfortunetely, just tried that NO$GBA 2.8 could not run my stuffs.:(
     
  16. cearp
    OP

    cearp the ticket master

    Member
    7,550
    4,813
    May 26, 2008
    Tuvalu
    maybe compare your own dump to a scene dsiware/other person's dsiware dump?
     
  17. redunka

    redunka GBAtemp Regular

    Member
    297
    139
    Nov 26, 2014
    Russia
    It would probably be easier to check if dump is good by comparing SHA-256 hash of dumped SRL (.app) with the hash from .tmd file.

    Anyway, I wasn't able to boot any DSiWare in NO$GBA 2.8d myself, yet same dumps do work with version 2.8b for some reason.
     
    cearp likes this.
  18. MelonGx

    MelonGx GBAtemp Advanced Maniac

    Member
    1,634
    439
    Jan 8, 2009
    China
    No use because the .NDS is directly copied from TWLN by GodMode9.
    I don't think a playable installed DSiWare could be a corrupt data.