Nokia 1680 Classic User Manual page 67

• 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, and light sensor lenses.
• Use only the supplied or an approved replacement antenna.
Unauthorized antennas, modifications, or attachments could
damage the device and may violate regulations governing 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 device and remove the battery.
These suggestions apply equally to your device, battery, charger, or
any enhancement. If any device is not working properly, take it to
the nearest authorized service facility for service.
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