Garmin 010-00990-01 用户手册

nüvi 30/40/50 Owner’s Manual 

21

You can restore a category of settings or all settings 

to the factory defaults.

Select Settings.

If necessary, select a settings category.

Select Restore.

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.

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.

Avoid chemical cleaners and solvents that can 

damage plastic components.

Clean the outer casing of the device (not the 

touchscreen) using a cloth dampened with a mild 

detergent solution. 

Wipe the device dry.

Use a soft, clean, lint-free cloth.

If necessary, use water, isopropyl alcohol, or 

eyeglass lens cleaner.