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→System Format
== System Format ==
== System Format ==
Most of the System Format is done with [[FS:InitializeCtrFileSystem]]. This command updates the high u64 of the keyY stored in [[Nand/private/movable.sed|movable.sed]]. Since this keyY was updated, the data stored on [[SD_Filesystem|SD]] card(sdmc/Nintendo 3DS/<ID0>/<ID1>) and the data under [[Flash_Filesystem|nand/data/<ID0>]] is rendered useless, since that data used the old keyY. Since that data is no longer usable, the system then deletes the two above SD/NAND directories.
Most of the System Format is done with [[FS:InitializeCtrFileSystem]]. This command updates the high u64 of the keyY stored in [[Nand/private/movable.sed|movable.sed]]. Since this keyY was updated, the data stored on [[SD_Filesystem|SD]] card(sdmc/Nintendo 3DS/<ID0>/<ID1>) and the data under [[Flash_Filesystem|nand/data/<ID0>]] is rendered useless, since that data used the old keyY. Since that data is no longer usable, the system then deletes the two above SD/NAND directories.
When you first enter the System Format menu, it will check if a NNID is linked. If there's a linked-NNID, it will then display: "Are you ready to connect to the Internet to check whether data can be formatted"? Continuing will only result in connecting to wifi for doing the usual connection-test, ''nothing more''. Once that's done it will continue with the usual system-format messages.
== System Updater ==
== System Updater ==