Find "Phone autolock period"
Press the Menu key.
Press Settings.
Press Phone.
Press Phone management.
Press Security settings.
Press Phone and SIM card.
Press Phone autolock period.
Activate or deactivate
To activate the phone lock code:
Press User defined.
Press User defined.
The phone will be locked after the set period and can only be activated by keying in the phone lock code.
Key in the required number of minutes.
Press OK.
Press OK.
The phone will be locked after the set period and can only be activated by keying in the phone lock code.
To deactivate the phone lock code:
Press None.
Press None.
The phone will be locked after the set period and can only be activated by keying in the phone lock code.
Key in the phone lock code (default is 12345) and press OK.
The phone will be locked after the set period and can only be activated by keying in the phone lock code.
Exit
Press the Menu key to return to standby mode.