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→SystemDeliveryInfo
! Description
! Description
|-
|-
| 0x0 || 0x4 || Must be <= to and match [[System_Settings|system-setting]] <code>contents_delivery!system_delivery_protocol_version</code>.
| 0x0 || 0x4 || SystemDeliveryProtocolVersion. Must be <= to and match [[System_Settings|system-setting]] <code>contents_delivery!system_delivery_protocol_version</code>.
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|-
| 0x4 || 0x4 || Loaded from [[System_Settings|system-setting]] <code>contents_delivery!application_delivery_protocol_version</code>. Unused by [[#RequestSendSystemUpdate]]/[[#RequestReceiveSystemUpdate]], besides HMAC validation.
| 0x4 || 0x4 || ApplicationDeliveryProtocolVersion. Loaded from [[System_Settings|system-setting]] <code>contents_delivery!application_delivery_protocol_version</code>. Unused by [[#RequestSendSystemUpdate]]/[[#RequestReceiveSystemUpdate]], besides HMAC validation.
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|-
| 0x8 || 0x4 || Whether ExFat is included. Unused by [[#RequestSendSystemUpdate]]/[[#RequestReceiveSystemUpdate]], besides HMAC validation.
| 0x8 || 0x1 || HasExFat. Unused by [[#RequestSendSystemUpdate]]/[[#RequestReceiveSystemUpdate]], besides HMAC validation.
|-
|-
| 0xC || 0x4 || SystemUpdate Meta version.
| 0x9 || 0x3 || Reserved.
|-
|-
| 0x10 || 0x8 || SystemUpdate Meta Id.
| 0xC || 0x4 || SystemUpdateMetaVersion.
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|-
| 0x18 || 0x1 || firmware_variation, used by [[#RequestSendSystemUpdate]].
| 0x10 || 0x8 || SystemUpdateMetaId.
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|-
| 0x19 || 0x1 || Unknown. Unused by [[#RequestSendSystemUpdate]]/[[#RequestReceiveSystemUpdate]], besides HMAC validation.
| 0x18 || 0x1 || FirmwareVariationId. Used by [[#RequestSendSystemUpdate]].
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| 0x19 || 0x1 || UpdatableFirmwareGroupId. Unused by [[#RequestSendSystemUpdate]]/[[#RequestReceiveSystemUpdate]], besides HMAC validation.
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|-
| 0x1A || 0x1 || PlatformRegion (0x00 = Unknown, 0x01 = Global, 0x02 = China).
| 0x1A || 0x1 || PlatformRegion (0x00 = Unknown, 0x01 = Global, 0x02 = China).