Changing Pin2; Changing The Call Barring Password - Samsung SGH-i640V User Manual

Locking the SIM card
When SIM lock is enabled, your device works only with the
current SIM card. To use another SIM card, you must enter
the SIM lock password.
1. On the Home screen, press the Start soft key.
2. Press the Main Menu soft key and select Settings →
More... → Security → Enable SIM Lock.
3. Enter a password for your SIM card and press the Done
soft key.
4. Re-enter the password for confirmation and press the
Done soft key.

Changing PIN2

A PIN2 is used for certain functions supported by the SIM
card. You can change the PIN2 supplied with your SIM card
to a new one.
1. On the Home screen, press the Start soft key.
2. Press the Main Menu soft key and select Settings →
More... → Security → Change PIN2.
3. Enter the current PIN2 in the Old PIN field, then a new
PIN in the New PIN field, and re-enter the new PIN in
the Confirm new PIN field.
4. Press the Done soft key.

Changing the call barring password

You can change the default call barring password supplied
by your service provider.
The basics
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