System SaveData

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 usually 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
0x0002020A	0x0002021A	0x0002022A	System Transfer savegame
0x0002020B	0x0002021B	0x0002022B	Nintendo Zone savegame
0x0002020D	0x0002021D	0x0002022D	Face Raiders savegame
0x0002020E	0x0002021E	0x0002022E	AR Games 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