ZTE F858 - Manual (Page 18)

18
Select Keys
The two keys at the top of the keypad are called the Select Keys.
The left and right Select Keys are used to choose the options from the bottom of the screen.
In the above example the Left Select Key opens the Menu and the Right Select Key opens
Options for the Home Screen.
Back and Exit Keys
Press key to go back one step or the key to Exit to the Main Menu.