Samsung P55 manual System Setup Keys, In the Setup, you have to use the keyboard

System Setup Keys

In the Setup, you have to use the keyboard.

F1

Up & Down Keys

F5/F6

F9

ESC

Left & Right Keys

Enter

F10

Press to view the Setup Help.

Press to move up and down.

Press to change the item value.

Press to load the default Setup settings.

Press to return to a higher level menu or to move to the Exit menu. Press to move to another menu.

Press to select an item or to enter a sub menu.

Press to save the changes and exit Setup.

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