Question

Why can't I activate/deactivate the travel lock?

Answer

Make sure you press the button properly for 3 seconds (counting 21, 22, 23). When the 3 seconds are over, the device stops running and the speed setting indications flash white twice. The travel lock is now activated. Deactivate it in the same way. Make sure you release the button after the speed setting indications have flashed white twice.

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