SD Savedata Backups

Overview

Introduced in 6.0.0-11, users are able to backup savedata for titles installed to SDMC, to a maximum of 30 'slots'. Users can backup savedata while in the Home Menu, available as an option when selecting an application. In System Settings, user are able to backup, restore and delete savedata backups. There are however exclusions, see Exclusions

Backups

Savedata backups are located in the directory:

sdmc:/Nintendo 3DS/<ID0>/<ID1>/backups

The savedata backup directory structure(this structure is repeated for every slot):

backups
└───XXX
    └───<Application TitleID>
         └───00000000.sav

• XXX - A three digit hexadecimal number representing the slot number i.e. (000-01d).
• <Application TitleID> - The application's full TitleID.
• 00000000.sav - A verbatim copy of the application's savedata at time of backup.

There can only be one savedata per slot, and details about the backed up savedata are stored by the system and hence cannot manually be created.

Exclusions

Some titles are not allowed to have their saves backed up. This appears to be enforced by a Unique ID blacklist:

Regular 3DS Titles

JPN UniqueID	USA UniqueID	EUR UniqueID	Title Name
?	00BA8	00BA9	Pokemon Mystery Dungeon

Virtual Console Titles

JPN UniqueID	USA UniqueID	EUR UniqueID	Title Name
00748	00749	0074A	F-Zero: Maximum Velocity
0074B	0074C	0074D	Mario Kart Super Circuit
0074E	0074F	00750	Wario Land 4
00751	00752	00753	Yoshi's Island: Super Mario Advance 3
00755	00756	00757	Metroid Fusion
00758	00759	0075A	WarioWare Inc: Mega Microgame
0075B	0075C	0075D	Kirby & The Amazing Mirror
00766	00767	00768	Mario vs Donkey Kong
00769	0076A	0076B	Fire Emblem: The Sacred Stones
0076C	0076D	0076E	The Legend of Zelda: The Minish Cap