Samsung M60 - Manual (Page 137)

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System Setup Keys
In the Setup, you have to use the keyboard.
F1 Press to view the Setup Help.
Up & Down Keys Press to move up and down.
F5/F6 Press to change the item value.
F9 Press to load the default Setup settings.
ESC Press to return to a higher level menu or to move to the Exit menu.
Left & Right Keys Press to move to another menu.
Enter Press to select an item or to enter a sub menu.
F10 Press to save the changes and exit Setup.