Blackberry Curve 8320 - Manual (Page 9)

Antenna care
Use only the supplied integrated antenna. Unauthorized antenna modifications or attachments
could damage the BlackBerry® device and might violate U.S. Federal Communications
Commission (FCC) regulations.
Operating and storage temperatures
Situate the BlackBerry® device or device accessories away from heat sources, such as radiators,
heat registers, stoves or other apparatus (including amplifiers) that produce heat.
If you are not going to use the BlackBerry device for more than two weeks, turn off the device
power, remove the battery and follow the operating and storage temperatures listed in the
following table:
Device operating 32 to 104°F (0 to 40°C)
Device storage 50 to 86°F (10 to 30°C)
Travel charger operating 32 to 104°F (0 to 40°C)
Travel charger storage -22 to 167°F (-30 to 75°C)
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