the touchscreen, just press Power
the slider.
To change how long your phone waits before the
screen goes to sleep automatically,
press Menu
Screen timeout
>
Spin the screen
The touchscreen can rotate 90 degrees to stay
right-side up when you rotate your phone:
Find it:
Menu
Orientation
>
12
Touchscreen & keys
Settings
>
.
Settings
>
Sound & display
>
Sound & display
>
again, or open