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