Using the number buttons
When the keyboard screen is displayed, press 0 – 9.
The 10 key input screen is displayed.
Place the cursor at the character to be changed with 
and press the number button (0 – 9) until the desired character is displayed.
and press the number button (0 – 9) until the desired character is displayed.The types of characters that can be input are as shown below.
Repeat step 2 to change the name then press ENTER to register it.