Samsung SCH-R640 User Manual page 209

Portable dualband mobile phone
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Cleaning solutions
Do not use harsh chemicals, cleaning solvents, or strong detergents
to clean the mobile device. Wipe it with a soft cloth slightly
dampened in a mild soap-and-water solution.
Shock or vibration
Do not drop, knock, or shake the mobile device. Rough handling
can break internal circuit boards.
Paint
Do not paint the mobile device. Paint can clog the device's moving
parts or ventilation openings and prevent proper operation.
Health and Safety Information
204

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