Gericom Blockbuster Mobile G553, User Manual, Page: 39 / 105

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Adjusting the LCD Screen Display
The LCD screen display can be adjusted by the following key combinations.
KEYS FUNCTIONS
[Fn] + [F7] Decreases the brightness level.
[Fn] + [F8] Increases the brightness level.
[Fn] + [F10] Use this key combination to expand your video screen or reset to its
original size.