Zte mf820, Quick Manual, Page: 8 / 68

off if necessary. Consult a physician or the manufacturer of the medical device before
using the modem.
• Be aware of the usage limitation when using a modem at places such as oil warehouses
or chemical factories, where there are explosive gases or explosive products being
processed. Turn off your modem if required.
• The use of electronic transmitting devices is forbidden in aircrafts, at petrol stations and
in hospitals. Please observe and obey all warning signs and switch off your modem in
these conditions.
• Do not touch the inner antenna area if not necessary. Otherwise it will affect your
modem’s performance.
• Store the modem out of the reach of little children. The modem may cause injury if used
as a toy.
Using your USB Modem
• Please use original accessories or accessories that are authorized. Using any
unauthorized accessories may affect your modem’s performance, and violate related
national regulations about telecom terminals.
• Avoid using the modem near or inside metallic structures or establishments that can
emit electromagnetic waves. Otherwise it may influence signal reception.
• The modem is not waterproof. Please keep it dry and store in a shady and cool place.
• Do not use the modem immediately after a sudden temperature change. In such case, it
will produce dew inside and outside the modem, so don’t use it until it becomes dry.