Quba M30, User Manual, Page: 17 / 18

9 P roblems and s olutions
If the exception occurs when using the M30 phone, please
exclude according to the following table.
Frequently
Frequently
As ked Ques tions
C aus es
Standby time is
S olutions
In a poor
reception
area, please
As ked Ques tions
Bad reception
Echo or noise
C aus es
Use the mobile
phone in poor
reception areas,
such as tall
buildings or the
basement, radio
waves can not
effectively
communicate.
Use mobile phone
during intensive
call period, such
as working hours.
Line congestion will
cause that the
phone can not talk.
Related to distance
of network launch
base station.
Caused by poor
network trunk,
is a regional problem.
Poor phone lines
in some areas.
S olutions
Avoided.
Avoided.
Require ISP
provide the
service area
maps.
Hang up and
redial, trunk
lines may
change a
better line.
Shorter
standby time
Can not boot
SIM card error
related to the setting
of network system.
Need to replace
the battery.
When no signal is
received, the phone
will continue to
launch to look for
base stations,
consuming a lot of
battery power,
resulting in shorter
standby time.
Battery depletion.
SIM card damaged.
SIM card is not
installed well.
Dirt on metal
surface of SIM card.
temporarily
turn off the
phone.
Replace with
new batteries.
Use in strong
signal area or
temporarily
close the
phone.
Charge
the battery.
Contact with
your ISP.
Determine
the SIM card
is installed
well.
Use a clean
cloth to wipe
the metal
contacts on
SIM card.
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