Operation Manual

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4 Get Started
Please switch off the device and cut the connection between the
device and the charger or other connecting equipment when
remove the outside shell. Please install the shell when the device is
in storage or use.
4.1
SIM Card Installation
SIM card, also called intelligent card or user ID card, is provided by
GSM system service vendor. GSM digital mobile telephone can
only be used when SIM card is properly installed. Please contact
your SIM card provider to learn if SIM service and other usages are
provided. SIM card provider may be a service operator, network