C a r e a n d m a i n t e n a n c e82 Copyright © 2006 Nokia. All rights reserved.21. Care and maintenanceYour device is a product of superiordesign and craftsmanship and shouldbe treated with care. The suggestionsbelow will help you protect yourwarranty coverage.• Keep the device dry. Precipitation,humidity and all types of liquids ormoisture can contain minerals thatwill corrode electronic circuits.If your device does get wet, removethe battery and allow the device todry completely before replacing it.• Do not use or store the device industy, dirty areas. Its moving partsand electronic components can bedamaged.• Do not store the device in hotareas. High temperatures canshorten the life of electronicdevices, damage batteries, andwarp or melt certain plastics.• Do not store the device in coldareas. When the device returns toits normal temperature, moisturecan form inside the device anddamage electronic circuit boards.• Do not attempt to open the deviceother than as instructed in thisguide.• Do not drop, knock, or shake thedevice. Rough handling can breakinternal circuit boards and finemechanics.• Do not use harsh chemicals,cleaning solvents, or strongdetergents to clean the device.• Do not paint the device. Paint canclog the moving parts and preventproper operation.• Use a soft, clean, dry cloth to cleanany lenses (such as camera,proximity sensor, and light sensorlenses).• Use only the supplied or anapproved replacement antenna.Unauthorized antennas,modifications, or attachmentscould damage the device and mayviolate regulations governing radiodevices.• Use chargers indoors.• Always create a backup of data youwant to keep (such as contacts andcalendar notes) before sendingyour device to a service facility.All of the above suggestions applyequally to your device, battery,charger, or any enhancement. If anydevice is not working properly, take itto the nearest authorized servicefacility for service.