
15
16
is from-10oC to +55 oC. Use the charger
provided by the manufacturer only. The use of
unconfirmed charger may lead to dangers and
violate the manufacturer’s warranty clause. If
the temperature is too high or too low during
the charge, the device will automatically send
a warning and stop charging to avoid damage
to the battery or any danger.
Connecting to Network
SIM Card
Insert valid SIM card (Subscriber Identity
Module) before using the device.
All information related to the reach of the
network is recorded in the chip of SIM card,
including the name, phone number and
messages stored in the SIM card contacts.
In case of losing or damaging SIM card
information, users should avoid touching the
metal touching side and keep SIM card away
from electrical and magnetic field.
Inserting and Removing the SIM Card
Switch off the device, and remove the battery
and other external power supply.
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