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→Gamecard Certificate
| 0x10C
| 0x10C
| 0x1
| 0x1
| Title KEK Index (high nibble) and KEK Index (low nibble)
| TitleKeyDec Index (high nibble) and KEK Index (low nibble)
|-
|-
| 0x10D
| 0x10D
| 0x1
| 0x1
| Gamecard Size (0xFA = 1GB, 0xF8 = 2GB, 0xF0 = 4GB, 0xE0 = 8GB, 0xE1 = 16GB, 0xE2 = 32GB)
| [[#Gamecard Size|Gamecard Size]]
|-
|-
| 0x10E
| 0x10E
| 0x10F
| 0x10F
| 0x1
| 0x1
| Gamecard Flags (bit0 = AutoBoot, bit1 = HistoryErase)
| [[#Gamecard Flags|Gamecard Flags]]
|-
|-
| 0x110
| 0x110
| 0x8
| 0x8
| Package Id (used for challenge–response authentication)
| Package ID (used for challenge–response authentication)
|-
|-
| 0x118
| 0x118
| 0x180
| 0x180
| 0x4
| 0x4
| Secure Mode Flag (always 1, which means Secure Mode is available)
| Security Mode (0x01 = T1, 0x02 = T2)
|-
|-
| 0x184
| 0x184
| 0x4
| 0x4
| Title Key Flag (always 2)
| T1 Key Index (always 2)
|-
|-
| 0x188
| 0x188
| 0x4
| 0x4
| Key Flag (always 0)
| Key Index (always 0)
|-
|-
| 0x18C
| 0x18C
| 0x70
| 0x70
| [[#Gamecard Info|Gamecard Info]] (AES-128-CBC encrypted)
| [[#Gamecard Info|Gamecard Info]] (AES-128-CBC encrypted)
|}
== Gamecard Size ==
[[Filesystem_services|FS]] retrieves this data as [[Filesystem_services#GameCardSize|GameCardSize]].
{| class="wikitable" border="1"
|-
! Value
! Description
|-
| 0xFA
| 1GB
|-
| 0xF8
| 2GB
|-
| 0xF0
| 4GB
|-
| 0xE0
| 8GB
|-
| 0xE1
| 16GB
|-
| 0xE2
| 32GB
|}
== Gamecard Flags ==
[[Filesystem_services|FS]] retrieves this data as [[Filesystem_services#GameCardAttribute|GameCardAttribute]].
{| class="wikitable" border="1"
|-
! Bits
! Description
|-
| 0
| AutoBoot
|-
| 1
| HistoryErase
|-
| 2
| [4.0.0+] RepairTool
|-
| 3
| [9.0.0+] DifferentRegionCupToTerraDevice
|-
| 4
| [9.0.0+] DifferentRegionCupToGlobalDevice
|}
|}
| 0x0
| 0x0
| 0x8
| 0x8
| Firmware Version (0x01 for old Gamecards, 0x02 for new Gamecards with the "logo" partition)
| Firmware Version (0x00 = Development, 0x01 = Retail, [4.0.0+] 0x02 = Retail)
|-
|-
| 0x8
| 0x8
| 0x4
| 0x4
| Access Control Flags (0x00A10011 for 25MHz access or 0x00A10010 for 50MHz access)
| Access Control (0x00A10011 = 25MHz access, 0x00A10010 = 50MHz access)
|-
|-
| 0xC
| 0xC
| 0x4
| 0x4
| Read Wait Time (always 0x1388)
| Read Time Wait1 (always 0x1388)
|-
|-
| 0x10
| 0x10
| 0x4
| 0x4
| Read Wait Time2 (always 0)
| Read Time Wait2 (always 0)
|-
|-
| 0x14
| 0x14
| 0x4
| 0x4
| Write Wait Time (always 0)
| Write Time Wait1 (always 0)
|-
|-
| 0x18
| 0x18
| 0x4
| 0x4
| Write Wait Time2 (always 0)
| Write Time Wait2 (always 0)
|-
|-
| 0x1C
| 0x1C
|-
|-
| 0x24
| 0x24
| 0x4
| 0x1
| [9.0.0+] Compatibility Type (0x00 = Normal, 0x01 = Terra)
|-
| 0x25
| 0x3
| Empty
| Empty
|-
|-
| 0x30
| 0x30
| 0x8
| 0x8
| CUP Id (always 0x0100000000000816, which is the title-listing data archive's title ID)
| CUP ID (always 0x0100000000000816, which is the title-listing data archive's title ID)
|-
|-
| 0x38
| 0x38
This is the Gamecard's unique certificate and is located at offset 0x7000.
This is the Gamecard's unique certificate and is located at offset 0x7000.
[[Filesystem_services|FS]] IDeviceOperator cmd 206 "GetGameCardDeviceCertificate" retrieves this data.
[[Filesystem_services|FS]] retrieves this data with [[Filesystem_services#GetGameCardDeviceCertificate|GetGameCardDeviceCertificate]].
{| class="wikitable" border="1"
{| class="wikitable" border="1"
| 0x4
| 0x4
| Magicnum "CERT"
| Magicnum "CERT"
|-
| 0x104
| 0x4
| Empty
|-
| 0x108
| 0x1
| KEK Index
|-
| 0x109
| 0x7
| Empty
|-
|-
| 0x110
| 0x110
| 0x10
| 0x10
| ?
| Device ID
|-
|-
| 0x120
| 0x120
| 0xA
| 0x10
| ?
| Unknown
|-
|-
| 0x12A
| 0x130
| 0xD6
| 0xD0
| Encrypted data. Some kind of key?
| Encrypted data
|}
|}
The data between the Gamecard Certificate and the start of the HFS0 region is all 0xFF.
The data between the Gamecard Certificate and the start of the HFS0 region is all 0xFF, except for one BOTW cart that has been found, inwhich it is 0x00.
= Initial Data =
= Initial Data =
| 0x0
| 0x0
| 0x8
| 0x8
| Package Id from [[#Gamecard Header|Gamecard Header]] at offset 0x110
| Package ID from [[#Gamecard Header|Gamecard Header]] at offset 0x110
|-
|-
| 0x8
| 0x8