Opening and closing: from the inside

See also:

New contact
1.  "Contacts" 2.  "New contact" 3.  If input boxes are already filled with previous entries: "Delete input fields" 4.  To fill in the entry fi ...

The concept
The parking brake is primarily intended to prevent the vehicle from rolling while parked; it brakes the rear wheels. ...

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