Samsung Galaxy S II Online User's Manual page 97

Stay awake
When this option is enabled, the screen will never
sleep while charging.
1.
Press and tap
.
options
2. Tap to enable or disable the setting.
Stay awake
Protect SD card
When this option is enabled, apps must request
permission to read an installed optional SD card (not
included).
1.
Press and tap
.
options
2. Touch
Protect SD card
setting.
> Settings > Developer
> Settings > Developer
to enable or disable the
Debugging
When enabled, this allows debugging when the phone
is attached to a PC by a USB cable.
1.
Press and tap
.
options
2. Configure options:
: When enabled, connecting your
USB debugging
device to a computer with a USB data cable
launches debugging mode.
Allow mock locations
locations are allowed during debugging.
Select app to be debugged
debugged when device is in debugging mode.
Wait for debugger
selected above opens when the debugger is
attached.
> Settings > Developer
: When enabled, mock
: Choose an app to be
: When enabled, the app
2C. Settings 82