LG G3100 User Manual page 177

You can copy/move entries from SIM card memory to Phone
memory or from Phone memory to SIM card memory.
Open the phonebook first by pressing [Names] in standby mode.
Scroll to
Then submenus below will be displayed.
You can delete all entries in
requires Security code.
Press [Names] to enter into the phonebook in standby mode.
Scroll to
Then select a memory to erase:
And then you will be requested to enter Security code.
Press [OK] or, press [Back] to cancel.
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, then press [Select] to enter this menu.
: You can copy the entry from SIM Card to Phone
memory.
: You can copy the entry from Phone memory to
SIM Card.
, then press [Select].
, and . This function
.