Troubleshooting
This chapter lists some problems you might encounter when using your phone. Some
problems require you to call your service provider, but most are easy to fix yourself.
Message
SIM card
error
No network
connection/
Dropped
network
Codes do
not match
No
applications
can be set
Troubleshooting
Possible causes
There is no SIM
card in the phone
or it is inserted
incorrectly.
Signal is weak or
you are outside the
carrier network.
Operator applied
new services.
To change a security
code, you need to
confirm the new
code by re-entering
it.
The two codes
you entered do not
match.
Not supported by
service provider or
registration required.
Possible corrective measures
Make sure that the SIM card is correctly
inserted.
Move toward a window or into an open
area. Check the network operator
coverage map.
Check whether the SIM card is more
than 6~12 months old. If so, change
your SIM card at your network provider's
nearest branch. Contact your service
provider.
If you forget the code, contact your
service provider.
Contact your service provider.
95