Table of Contents
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The phone is
switched off
automatically
Can't display
network
Bad
call
quality
installation
Low battery power
1.The
(U)SIM/SIM card
has
incorrectly
installed
2. The network is
very weak
1.The area does
not have a good
signal
2.The
changes suddenly
7 3
correctly
Charge the battery
1. Refer
(U)SIM/SIM
been
installation method.
2. Move to a place
with a strong signal
to use the phone
1. Move to a more
open area.
2. Maybe you are
moving
signal
high-speed (e.g. on
a train or bus).
Observe the signal
to the
card
at
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