LG KU311 User Manual page 136

PUK2 code (4 to 8 digits)
The PUK2 code, supplied with some USIM cards, is
required to unlock a blocked PIN2 code. If you lose
the code, contact your network operator's customer
service.
Security code (4 to 8 digits)
The security code protects the unauthorized use of
your phone. The default security code is set to
'0000' and the security code is required to delete all
phone entries and to restore the handset to factory
setting.
Display information
No USIM idle screen
This is the initial screen of the phone that appears
when there is no USIM card installed in the phone, or
the installed USIM card is invalid. In this screen, users
can only make emergency calls, and turn the phone
off. To turn off the phone, press and hold the End
key for a few seconds.
Screen structure
If there is no USIM card installed, an animation telling
you to insert a USIM card appears. If the USIM card
inserted into the phone is invalid, an animation telling
you that the USIM card is locked appears.
Emergency call function
The right soft key is represented by "Emergency" on
the screen. Press right soft key and then press the
OK key to make an emergency call.
Idle screen
The idle screen appears when you have installed a
proper USIM card and turned the phone on.
Screen structure
Idle screen consists of the operator's name,
indicators, date and time on a background image. You
can change the wallpaper in the display setting menu.
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