Panasonic GD90 Service Manual

Also see for GD90: Operating instructions

OPERATING INSTRUCTIONSMCUK990801C8 Section 3 Issue 1Service Manual – 13 – Revision 03.12Security Codes3.13SIM Personalisation3.13.1 IntroductionSIM personalisation will limit the use of GD90 to a single SIM, a SIM supplied by one Network/Sub-network/Service Provideror a SIM purchased by a company (corporation). If a personalised GD90 contains a SIM that is from a different source it willdisplay the message “SIM ERROR” when switched on. This personalisation of GD90 is sometimes referred to as SIM lock orSIM latch.3.13.2 TestingTo test a personalised GD90, when the user has not supplied the SIM, a SIM configured for test purposes (e.g. test SIM or softSIM) should be used. The mobile will recognise that the SIM is for testing purposes only and operate as normal.3.13.3 Personalisation FunctionPersonalisation is activated during manufacture and then enabled at a later stage. Enabling/disabling is available by enteringa special key sequence immediately after power on. Once the enable/disable menu is shown it is possible to select the type ofpersonalisation. When personalisation is enabled it is only possible to disable it if the mobile contains an illegal SIM and thesixteen digit Control Key (CK) is known. When enabled the CK is withheld from the user and cannot be read, for securityreasons.There are two special key sequences to enter the enable/disable menu:Key sequence Notes7 4 6 B B Can only disable personalisation.5 2 8 2 4 B B Can both enable and disable personalisation.3.13.4 Disabling Procedure1. F 7 4 6 B B or 5 2 8 2 4 B B.2. F e 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. F B.4. F the 16 digit Control Key.5. F B.6. F the 16 digit Control Key.7. F B.The display will confirm which type of Personalisation has been disabled.Code Type Number of Digits DescriptionPersonal Identification Number (PIN) 4 to 8 Controls SIM security. Supplied by the service provider.PIN 2 4 to 8 Controls memory security. Supplied by the service provider.PIN/PIN 2 Unblocking Key(PUK/PUK 2) 8 Used to unblock PIN and PIN 2. A PIN or PIN 2 will become blocked if thewrong PIN or PIN 2 is entered three times. When the blocked PIN or PIN 2is unblocked, a new PIN or PIN 2 must be entered. If the wrong PUK orPUK 2 is entered 10 times, your SIM will be unusable.Supplied by the service provider.Password 4 Controls the call bar function. If the wrong password is entered threetimes, this service will be revoked. Supplied by the service provider.Lock Code 4 Controls telephone security.Factory set to “0000”.