5.7.5 Using the PIN Manager:

1.Enable PIN Set-Up: This function is used to set the PIN. This function is effective only if the PIN set-up is disabled and the SIM card is not blocked. First enter the PIN set previously to enable the PIN set-up function. New users may find the default PIN in the SIM card user manual. If the correct PIN numbers are entered, the SIM card can be reset. If three consecutive attempts to enter the PIN fail, the SIM card is automatically blocked.

2.Disable PIN Set-Up: This function is used to disable the personal identification number (PIN) set-up. It is effective only when the PIN set-up is enabled and the SIM chip is not blocked. Users should first enter the current PIN to disable the PIN set-up. If the correct PIN numbers are entered, the SIM chip can be reset. If three consecutive attempts to enter the PIN fail, the SIM chip is automatically blocked.

3.Unblock SIM Card: If the SIM chip is locked up, follow the steps below to unlock it:

Step 1: To unblock, enter the PUK (Personal Unblocking Key) consult the SIM chip support documentation for the key code. If the PUK code is not supplied, contact the system operator/dealer.

Step 2: Enter a new PIN.

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Chapter 5: Software reference