A method for operating a color display of a mobile device is provided. The interferometric modulators have one or more anti-tilt members that inhibit undesirable movement of the reflective layer, such as curling andor tilting. A biasing element acts on the shield to pivotally bias it toward the second position, with the shield maintained in the first position through a latch mechanism extending between the shield and the hub. An overhead camera records the hand actions. A decelerating mechanism in an electronic device is also provided. The method includes determining an actual temperature value representative of an actual temperature of an item to be heated; determining a power level set on a user control device ; and calculating a rectified power level based on the actual temperature value, the actual power level and a preset setpoint temperature.