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and stop charging to avoid damage to the
battery or any danger
.
2 Connecting to Network
2.1 SIM Card
Insert valid SIM card (subscriber
identity module) before using the device.
All information related to the reach of
the network are 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.