Security

Password Lock: set a device lock password.

SIM Lock: enable or disable the SIM lock function.

SIM PIN: set whether or not to require a PIN when using the device.

Change PIN: change the current PIN.

Change PIN2: change the current PIN2.

Change Barring Password: change the current call barring password.

Mobile Tracker: configure and change the password for the mobile tracker feature.

Network Settings

Band Selection: select a band to use for cellular service.

Network Options: set the network selection method and set preferred networks.

HSDPA/HSUPA: enable or disable high-speed downlink or uplink packet access.

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Samsung GT-18000 manual Security, Network Settings