Blackberry RIM 857 Wireless Handheld Installation & User Manual page 12

Unplug this apparatus during lightning storms or when used for
long periods of time.
Refer all servicing to qualified service personnel. Servicing is
required when the apparatus has been damaged in any way, such as
when the power-supply cord or plug has been damaged, liquid has
been spilled or objects have fallen into the apparatus, it has been
exposed to rain or moisture, does not operate normally, or has been
dropped.
WARNING
Adjust only those controls that are covered in this manual. An
improper adjustment of other controls may result in damage and
will often require extensive work by a qualified technician to
restore the handheld or charging cradle to its normal operation.
Failure to observe all safety instructions contained in this
manual will void the Limited Warranty, and may lead to
suspension or denial of services to the offender, or legal action,
or both.
To reduce the risk of fire or electric shock, do not expose
this apparatus to rain or moisture.