Nokia 1661 User Manual page 30

● Do not drop, knock, or shake the device. Rough
handling can break internal circuit boards and 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 only the supplied or an approved replacement
antenna. Unauthorised 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
authorised service facility for service.
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