When renaming files, creating memos or notes,
you will be required to enter alphanumeric
characters when the character entry screen
appears.
Only alphanumeric characters as well as space
[ ], underscore [_] and minus [-] characters
allowed.
1. Use the scroll wheel to move the cursor to the
desired character.
3. To delete a character, press Back Space[F2].
4. To save the file name or memo, press Save[F3].