4.2.49 EFDCK (Depersonalisation Control Keys)
31.1023GPPCharacteristics of the Universal Subscriber Identity Module (USIM) applicationRelease 17TS
If service n° 36 is "available", this file shall be present.
This EF provides storage for the de-personalization control keys associated with the OTA de-personalization cycle of TS 22.022 [27].
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Identifier: ‘6F2C’ |
Structure: transparent |
Optional |
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File Size: 16 bytes |
Update activity: low |
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Access Conditions: READ PIN UPDATE PIN DEACTIVATE ADM ACTIVATE ADM |
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Bytes |
Description |
M/O |
Length |
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1 to 4 |
8 digits of network de‑personalization control key |
M |
4 bytes |
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5 to 8 |
8 digits of network subset de‑personalization control key |
M |
4 bytes |
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9 to 12 |
8 digits of service provider de‑personalization control key |
M |
4 bytes |
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13 to 16 |
8 digits of corporate de‑personalization control key |
M |
4 bytes |
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Empty control key bytes shall be coded ‘FFFFFFFF’.