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SIM card Network setup
Network selection: set the method of selecting networks.
Automatic: Auto search the network to which the SIM
card is subject.
Manual: Search all available networks, and register
manually.
Preferences: Pre-save some favorite networks.
Band Selection: Select a proper band.
GPRS connection: select GPRS connecting mode,
constant or temporary.
3.6.3 Security settings
3.6.3.1 SIM security
PIN lock
You can set security settings in this menu to prevent your
mobile phone from being used illegally.
PIN code
PIN Code can prevent your mobile phone from being used
illegally. If the current PIN Code is closed, please select
Open to activate this protection function. Next time when
you power on your mobile phone, PIN Code will be
requested. If the current PIN code is activated, select Close
to cancel PIN code protection function. Select Change PIN
Code to set a new PIN Code. Please follow the procedure to
input old PIN Code, new PIN Code and again new PIN code.
Note: If you input wrong PIN Code in three consecutive
times, SIM card will be locked. In this case, you need PUK
