- Press the middle button for 10 seconds.
- You hear the voice message "configuration menu".
- Press the (-) button twice until you hear "factory reset".
- Press the middle button again.
- You hear the voice message "Headset reset. Goodbye".
You can also perform a hardware reset:
- Insert a paper clip (1) into the hole (2) at the bottom of the communication system (3).
- Press the Reset button gently.
- The communication system is shut down.