Nintendo Switch Brew

Switch 2: Flash Filesystem

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Switch 2 has 256GB of UFS (Universal Flash Storage). All contents are signed and encrypted to some degree.

Structure

The Switch 2's UFS storage is distributed over 4 LUNs.

LUN0

Offset Size Description
0x0 0x2000 BRBCT
0x2000 0x1C000 Reserved
0x1E000 0x2000 MB1 BCH
0x20000 Variable MB1
0x9E000 0x2000 PSC-BL BCH
0xA0000 Variable PSC-BL
0xC0000 0x2000 MB1-BCT BCH
0xC2000 Variable MB1-BCT
0x103000 0x1000 BootConfig
0x104000 Variable Package2

LUN1

LUN1 is a copy of LUN0, presumably a backup for the update process.

LUN2

LUN3

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