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