Samsung SGH-T769NKBTMB - Manual (Page 264)

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personnel. Remember, to make or receive any calls, the mobile
device must be switched on and in a service area with adequate
signal strength.
Emergency calls may not be possible on all wireless mobile
device networks or when certain network services and/or mobile
device features are in use. Check with local service providers.
To make an emergency call:
1. If the mobile device is not on, switch it on.
2. From the Home screen, tap . Enter the emergency
number for your present location (for example, 911 or
other official emergency number), then tap .
Emergency numbers vary by location.
If certain features are in use (call blocking, for example), you may
first need to deactivate those features before you can make an
emergency call. Consult your User Manual and your local cellular
service provider. When making an emergency call, remember to
give all the necessary information as accurately as possible.
Remember that your mobile device may be the only means of
communication at the scene of an accident; do not cut off the call
until given permission to do so.
Care and Maintenance
Your mobile device is a product of superior design and
craftsmanship and should be treated with care. The suggestions
below will help you fulfill any warranty obligations and allow you
to enjoy this product for many years:
Keep your Samsung Mobile Device away from:
Liquids of any kind
Keep the mobile device dry. Precipitation, humidity, and
liquids contain minerals that will corrode electronic circuits. If
the mobile device does get wet, do not accelerate drying with
the use of an oven, microwave, or dryer, because this may
damage the mobile device and could cause a fire or
explosion.
Do not use the mobile device with a wet hand. Doing so may
cause an electric shock to you or damage to the mobile
device.
Extreme heat or cold
Avoid temperatures below 0°C / 32°F or above 45°C / 113°F.
Microwaves
Do not try to dry your mobile device in a microwave oven.
Doing so may cause a fire or explosion.
Dust and dirt
Do not expose your mobile device to dust, dirt, or sand.