LG P880 Quick Reference Manual page 200

Getting to know your phone
QuickMemo function
Use the QuickMemo function to practically and efficiently create memos during a call,
with a saved picture or on the current phone screen.

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OR
1
Enter the QuickMemo function screen
by pressing both the Volume up and
down keys for one second on the
screen you want to capture.
Touch and slide the status bar downward
and touch .
2 Select the desired menu option from
Pen type, Color, Eraser and create a
memo.
OR