You can find all possible changes in the following menu options under Main Menu SETTINGS.
SETTING THE LANGUAGE
Select Main menu > Settings > Language.
SETTING THE COUNTRY
Select Country under Settings.
RINGTONE
You can set the volume, duration and melody of the sound that is made at the end of the cooking process.
You can also set the volume of the Next button on the display.
DISPLAY
You can set the brightness of the display here.
The duration of the finishing sound can be limited to 3 repetitions of the melody.