See also:

Switching between upper and lower case letters
Depending on the menu, you can switch between entering upper and lower case letters: ...

Playing music
Music search All tracks for which additional information has been stored can be accessed by the music search. Tracks without additional information can be called up via the corresponding album ...

Deleting the button assignments
1. Press buttons 1 and 8 simultaneously for approx. five seconds. 2. "OK" ...