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7 Frequently Asked Questions and Troubleshooting
Frequently
Asked
Questions
Cause
and
Solution
Fail
to
turn
on
Press
the
power
on
key
for
over
1
second.
Check
if
the
battery
is
properly
connected.
Please
remove
and
install
it
again,
retry
to
turn
on.
Check
if
battery
is
appropriately
charged
Fail
to
connect
network
Weak
signal.
Please
try
and
move
to
a
location
with
strong
signal
and
try
connecting
to
the
network
again,
Please
ensure
that
you
are
not
beyond
the
network
coverage
of
service
providers.
Please
ensure
you
have
a
valid
SIM
card.
Please
contact
your
network
provider
for
further
information.
Display
information
while
turning
on
Check
if
the
SIM
card
(insert
the
SIM
card)
is
installed
correctly
Handset
lock
password.
If
the
handset
lock
is
activated
you
have
to
input
handset
password
before
using.
Input
PIN.
Inputting
PIN
while
turning
on
each
time
is
activated,
you
have
to
input
the
PIN
code.
