ACT Services

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The ACT module handles NNID accounts.

ACT service "act:u"[edit]

These commands are common to both act:u and act:a

Command Header Available since system-version Description
0x00010084 Initialize
0x00020040 GetErrorCode
0x00030000 GetLastResponsecode
0x00040000? ?
0x00050082 GetCommonInfo
0x000600C2 GetAccountDataBlock
0x00070082 GetResultAsync
0x000800C2 GetMiiImageData
0x00090180 SetNfsPassword
0x000A0040? ?
0x000B0042 AcquireEulaList
0x000C0082 ?
0x000D0040 GenerateUuid
0x000E0080? ?
0x000F0140 FindSlotNoByUuid
0x00100000? ?
0x00110080 GetTransferableId
0x00120102 AccquireNexServiceToken
0x00130002 GetNexServiceToken
0x00140382 AccquireIndependentServiceToken
0x00150002 GetIndependentServiceToken
0x00160082 AccquireAccountInfo
0x00170084 AccquireAccountIdByPid
0x00180044 GetPidByAccountID
0x00190044 AcquireMii
0x001A0042 AccquireRawAccountInfo
0x001B0084 AccquireOtherTypePrincipalID
0x001C0342 ?
0x001D0004 ?
0x001E0082 AcquireEula
0x001F0082 AcquireEulaLanguageList

ACT service "act:a"[edit]

These commands are exclusive to act:a

Command Header Available since system-version Description
0x041300C2 UpdateMiiImage
0x041B0142 AgreeEula
0x04210042 UploadMii
0x04230082 ValidateMailAddress

This is the service used by regular applications.

HTTPS Requests[edit]

With each request, ACT-sysmodule specifies request-header "X-Nintendo-Device-Model". This is the only *dedicated* request-header that's contains anything Old3DS/New3DS specific. This was implemented with 9.0.0-X, and presumably 8.1.0-0_New3DS. The value is from a string initialized during ACT-sysmodule startup. The value-string is the codename string for all 5 of the model values from Cfg:GetSystemModel. When the output from GetSystemModel is >=5(switch statement default case), it runs this: "len = snprintf(outstr, outmaxsize, "3DS-%u", model);"

Trusted Root CAs[edit]

ACT module uses a RootCertChain for all HTTPS requests, the only trusted root CA is default CertID 0x3.


Even though ACT-sysmodule uses ptm:s, it doesn't use CheckNew3DS at all.