Zte R621 User Manual page 10

storage facilities.
 Do not remove, install, or charge batteries in such areas. Spark in a
potentially explosive atmosphere can cause an explosion or fire
resulting in bodily injury or even death.
 To avoid possible interference with blasting operations, switch off
your phone when you are near electrical blasting caps, in a blasting
area, or in areas posted "Turn off electronic devices". Obey all signs
and instructions.
Precautions for Electronic Devices
 Some electronic devices are susceptible to electromagnetic interference
sent by mobile phone if inadequately shielded, such as electronic
system of vehicles. Please consult the manufacturer of the device before
using the phone if necessary.
Safety and General Use in Vehicles
 Safety airbag, brake, speed control system and oil eject system
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