I have a problem of semitone on my KeyLab

If the KeyBoard is not playing the correct semi-tones there is two possibilities:

First,

1/ Go to the "transposition Mode" directly on the keyboard (Click Octave + and Octave - at the same time dureing 5 seconds)

2/ Change the Value of the semi tone to 0 by pressing Octave + and Octave -

Second,

You may have the wrong Firmware, you can go on this page to update to the correct firmware.

If still a problem, you can contact Technical support