Samsung SGH-S390CSATFN - Manual (Page 37)

Entering Text 33
Section 4: Entering Text
This section outlines how to select the desired text entry mode when entering
characters using the QWERTY keyboard-style keypad.
This section also describes how to use the T9 predictive text entry system to reduce
the number of key strokes needed to enter text.
Using the QWERTY Keypad
Your phone has a QWERTY ( ) keypad for entering numbers and
text. You can enter text as you would when using a computer’s keyboard.
Navigation
Key
Right Soft
Key
Left Soft
Key
OK/Confirm