20
15. Troubleshooting
Common
issue
Reason
Troubleshooting
Bad
connection
Using the cellular phone in an area where the
network connection is poor, such as around a
tower or basement where a radio wave cannot
be sent effectively.
Try to avoid.
Using the cellular phone when the network is
busy, such as an on-off duty time, line busy.
Try to avoid.
Related to the distance of the service area of
the network.
Ask your operator to provide a
map of your service area.
Aftersound or
cacophony
It is caused by the network connection and it is
a regional problem.
Hang up and redial the number.
Network connection is not good in some areas.
Idle time
becomes
short
Idle time is related to network settings.
If the cellular phone is in an
area where the network
connection is not good, please
temporarily shut off your phone.