User's Manual

-21-
SIM
card
error
The SIM card
is damaged.
Contact your network service provider
The SIM card
is not in
position.
Check the SIM card
The metal
face of the
SIM card is
polluted.
Clean the SIM card with a clean cloth
Poor received
signal quality
Signals are
obstructed.
For instance,
radio waves
cannot be
effectively
transmitted
nearby a high
building or in
a basement.
Move to a place where signals can be effectively transmitted