71C a r e a n d m a i n t e n a n c eCare and maintenanceYour device is a product of superior design and craftsmanship and should be treated withcare. The following suggestions will help you protect your warranty coverage.• Keep the device dry. Precipitation, humidity, and all types of liquids or moisture cancontain minerals that will corrode electronic circuits. If your device does get wet, removethe battery, and allow the device to dry completely before replacing it.• Do not use or store the device in dusty, dirty areas. Its moving parts and electroniccomponents can be damaged.• Do not store the device in hot areas. High temperatures can shorten the life of electronicdevices, damage batteries, and warp or melt certain plastics.• Do not store the device in cold areas. When the device returns to its normal temperature,moisture can form inside the device and damage electronic circuit boards.• Do not attempt to open the device other than as instructed in this guide.• Do not drop, knock, or shake the device. Rough handling can break internal circuit boardsand fine mechanics.• Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the device.• Do not paint the device. Paint can clog the moving parts and prevent proper operation.• Use a soft, clean, dry cloth to clean any lenses, such as camera, proximity sensor, andlight sensor lenses.• Use only the supplied or an approved replacement antenna. Unauthorised antennas,modifications, or attachments could damage the device and may violate regulationsgoverning radio devices.• Use chargers indoors.• Always create a backup of data you want to keep, such as contacts and calendar notes.• To reset the device from time to time for optimum performance, power off the deviceand remove the battery.These suggestions apply equally to your device, battery, charger, or any enhancement. If anydevice is not working properly, take it to the nearest authorised service facility for service.