ZTE GRAND X Plus Guide Rapide page 22

Interference in Vehicles
Please note that because of possible interference
to electronic equipment, some vehicle
manufacturers forbid the use of mobile phones in
their vehicles unless a hands-free kit with an
external antenna is included in the installation.
Explosive Environments
Gas Stations and Explosive Atmosphere
In locations with potentially explosive atmosphere,
obey all posted signs to turn off wireless devices
such as your phone or other radio equipment.
Areas with potentially explosive atmosphere
include fueling areas, below decks on boats, fuel or
chemical transfer or storage facilities, and areas
where the air contains chemicals or particles, such
as grain, dust, or metal powders.
Blasting Caps and Areas
Power off your mobile phone or wireless device
when in a blasting area or in areas where signs are
posted to power off "two-way radios" or "electronic
devices" to avoid interfering with blasting operations.
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