(Home) > Settings > All settings > General settings > Input sources > Source > Edit

  1. Select one of the device icons and press OK, the preset name appears in the typing field.
  2. Press  (up) to move to the typing field, press OK, then enter new name using on-screen keyboard.
    - Press  (red) key to enter with lower-case
    - Press  (green) key to enter with upper-case
    - Press  (yellow) key to enter number and symbol
    - Press  (blue) key to delete a character
  3. Select Done when complete the editing.