Samsung GALAXY Tab 7.7 Quick Start Manual page 11

Keys
Key
Power/
Reset /
1
Lock
Volume
Touch screen
Your device's touch screen lets you easily select items or
perform functions. Control the touch screen by tapping,
tapping and holding, or dragging across it.
1. If your device has fatal errors or hang-ups, or freezes, you may
need to reset the device to regain functionality.
Function
Turn on the device (press and hold);
Access the quick menus (press and hold);
Reset the device (press and hold for
10-15 seconds); Lock the touch screen.
Adjust the device's volume.
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