Appendix A: Troubleshooting
Please refer to the following list of problems and solutions if there is any abnormity
when you use the mobile phone. Please contact the distributor or service provider if
it still doesn't work.
Problem
Can't access Internet
normally when using
browser.
SIM card error.
PIN code error.
Poor receiving.
Can't switch on.
Can't make a call.
Echoes or noises.
Can't connect to
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Reason
The network operator doesn't
provide this service or you
hasn't applied this service
The setting is not correct.
SIM card is damaged.
The SIM card isn't installed
properly.
The metal surface of the SIM
card is dirty.
Enter incorrect PIN codes for
three times in succession.
The mobile phone is used in
bad signal receiving area, for
example, near tall building or
in basement, the radio waves
can't reach these area
effectively.
The mobile phone is used
when communication is busy
and lines are congested.
Battery is too low.
Call barring is active.
The fixed dialing number
feature is used.
The trunk line of network is in
bad condition. It is a regional
problem.
In some areas, the call lines
are in bad condition.
SIM card is invalid.
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Solution
Please contact and
consult your network
operator for information of
how to apply and use this
service.
Please refer to specific
introductions of the
browser.
Please contact your
network operator.
Check the SIM card.
Clean it with clean cloth.
Contact your network
service provider.
Please make or answer a
call in places with strong
signal
Try to avoid using mobile
phone when
communication is busy
Charge the battery.
Cancel call barring.
Cancel the fixed dialing
number settings.
Hang off the call and dial
again. Choose another
better line.
Please contact your