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EB-GD35 EB-GD35C
14
3.13. SIM Personalisation
3.13.1 Introduction
SIM personalisation will limit the use of the telephone to a single SIM, a SIM supplied by one Network/Sub-network/Service
Provider or a SIM purchased by a company (corporation). If a personalised handset contains a SIM that is from a different source, it
will display the message “SIM ERROR” when switched on. This personalisation is sometimes referred to as SIM lock or SIM latch.
3.13.2 Testing
To test a personalised handset when the user has not supplied the SIM, a SIM configured for test purposes (e.g. test SIM or soft
SIM) should be used. The mobile will recognise that the SIM is for testing purposes only and operate as normal.
3.13.3 Personalisation Function
Personalisation is activated during manufacture and then enabled at a later stage. Enabling/disabling is available by entering a
special key sequence immediately after power on. Once the enable/disable menu is shown it is possible to select the type of
personalisation. When personalisation is enabled it is only possible to disable it if the mobile contains an illegal SIM and the sixteen
digit Control Key (CK) is known. When enabled, the CK is withheld from the user and cannot be read, for security reasons.
There are two special key sequences to enter the enable/disable menu:
3.13.4 Disabling Procedure
Key Sequence
Notes
Can only disable personalisation
Can both enable and disable personalisation
1.
or
2.
to point at:
“SIM” for SIM Personalisation
”Network” for Network Personalisation
“Subnetwork” for Subnetwork Personalisation
”SP” for Service Provider Personalisation or
”Corporate” for Company Personalisation.
3.
.
4.
the 16 digit Control Key.
5.
.
6.
the 16 digit Control Key.
7.
.
The display will confirm which type of Personalisation has been disabled.
Network
Sub-Network
Service (SP)
Summary of Contents for EB-GD35
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