Press the key below the word "Menu."

Using your navigation keys, go to "Messages," then press the key below the word "Select."

"Create message" will appear highlighted. Press "Select."

Using your keypad, enter the mobile number of the person you wish to send the message to.

Press the down navigation key and enter the message you wish to send. Once you are done, press the OK key in the center of your navigation keys.

To exit, press the red PWR/END key.