To enter a letter, press the number key once or multiple times until the desired letter is displayed.

To add a tone mark, press * once or multiple times immediately after the vowel.

To enter punctuation marks, press 1 once or multiple times.

To display the special character table, press and hold *.

To change the character case or input mode, press #.

Tip:

To enter numbers in Vietnamese input mode, press and hold the number keys.