Savegames stored in NAND are located at nand:/data/<ID0>/sysdata/<SaveID-Low>/<SaveID-High>, where SaveID-High is the filename. SaveID-High is normally 00000000.
Access to system savedata via fs:USER is determined by the exheader_storageinfo accessinfo and systemsavedataid. Most ARM11 processes using fs:USER only have access to the SaveIDs specified by systemsavedataid, when a certain accessinfo bit is set the process can access all system-savedata however. The 8-byte systemsavedataid is two SaveID-Low words which the process has access to, normally only the first word is used. When the process doesn't have access to any system-savedata via systemsavedataid, systemsavedataid is all-zero.
NAND Savegames
The SaveID for system modules is usually 0x00010000 | uniqueID. The SaveID for other system processes(like applications) is 0x00020000 | uniqueID.
System Module Savegames
| SaveID | Description |
|---|---|
| 0x00010011 | ? |
| 0x00010015 | ? |
| 0x00010017 | Config Savegame |
| 0x00010022 | PTM savegame |
| 0x00010026 | CECD savegame |
| 0x0001002C | NIM savegame |
| 0x00010032 | Friends module savegame |
| 0x00010034 | BOSS database |
| 0x00010035 | News module savegame |
System application and applet savegames
| JPN SaveID | USA SaveID | EUR SaveID | Description |
|---|---|---|---|
| 0x000200C5 | Same as JPN | Same as JPN | "error" applet savegame |
| 0x00020082 | 0x0002008F | 0x00020098 | Home Menu savegame |
| 0x00020086 | 0x00020092 | 0x0002009B | Instruction Manual applet savegame |
| 0x00020087 | 0x00020093 | 0x0002009C | Game Notes applet savegame |
| 0x00020088 | 0x00020094 | 0x0002009D | Internet Browser savegame |
| 0x0002008D | 0x00020096 | 0x0002009F | Friend List applet savegame |
| 0x00020200 | 0x00020210 | 0x00020220 | System Settings savegame |
| 0x00020202 | 0x00020212 | 0x00020222 | Activity Log application savegame |
| 0x00020204 | 0x00020214 | 0x00020224 | Nintendo 3DS Camera application savegame |
| 0x00020205 | 0x00020215 | 0x00020225 | Nintendo 3DS Sound application savegame |
| 0x00020207 | 0x00020217 | 0x00020227 | Mii Maker application savegame |
| 0x00020208 | 0x00020218 | 0x00020228 | StreetPass Mii Plaza application savegame |
| 0x00020209 | 0x00020219 | 0x00020229 | eShop application savegame |
| 0x0002020A | 0x0002021A | 0x0002022A | System Transfer savegame |
| 0x0002020B | 0x0002021B | 0x0002022B | Nintendo Zone savegame |
| 0x0002020D | 0x0002021D | 0x0002022D | Face Raiders savegame |
| 0x0002020E | 0x0002021E | 0x0002022E | AR Games savegame |