Restoring Settings You can restore a category of settings or all settings to the factory defaults. 1. Select Settings . 2. If necessary, select a settings category. 3. Select Restore . Do not store the device where prolonged exposure to extreme temperatures can occur, because it can cause permanent damage. Never use a hard or sharp object to operate the touchscreen, or damage may result. Cleaning the Outer Casing notice Avoid chemical cleaners and solvents that can damage plastic components. Appendix Caring for Your Device 1 Clean the outer casing of the device (not the touchscreen) using a cloth dampened with a mild detergent solution. 2 Wipe the device dry.
notice Avoid dropping your device and operating it in high- shock and high-vibration environments. Do not expose the device to water. Contact with water can cause this device to malfunction. Cleaning the Touchscreen 1 Use a soft, clean, lint-free cloth. 2 If necessary, use water, isopropyl alcohol, or eyeglass lens cleaner. nьvi 30/40/50 Owner’s Manual 21