Lock Or Unlock The Touch Screen And Keys - Samsung GT-I5800 Quick Start Manual

•
For optimal use of the touch screen, remove the
screen protection film before using your device.
•
Your touch screen has a layer that detects small
electrical charges emitted by the human body.
For best performance, tap the touch screen with
your fingertip. The touch screen will not react to
touches of sharp tools, such as a stylus or pen.
Control your touch screen with the following actions:
•
Tap: Tap once with your finger to select or launch a
menu, option, or application.
•
Tap and hold: Tap an item and hold it for more than 2
seconds to open a pop-up option list.
•
Scroll: Tap and drag your finger up, down, left, or right to
move to items on lists.
•
Drag and drop: Tap and hold your finger on an item, and
then drag your finger to move the item.
•
Double-tap: Tap twice quickly with your finger to zoom
in or out while viewing photos or web pages.
18
Getting started
•
Your device turns off the touch screen when you
do not use the device for a specified period. To
turn on the screen, press any key.
•
You can also adjust the backlight time. In Idle
mode, open the application list and select
Settings Sound and display
→
timeout.
Lock or unlock the touch screen
and keys
You can lock the touch screen and keys to prevent any
unwanted device operations.
To lock, press [ ]. To unlock, turn on the screen by
pressing any key, and then flick the grey window with your
finger.
Screen
→