Nokia HS-21W User Manual page 32

C a r e a n d m a i n t e n a n c e
• 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 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.
All of the above 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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