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 error
No network
connection/ Dropped
network
Codes do not match
No applications can
be set
Calls not available
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 will need to
confirm the new code by
re-entering it.
The two codes you have
entered do not match.
Not supported by service
provider or registration
required.
Dialling error
New SIM card inserted.
Pre-paid charge limit
reached.
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 at your network
provider's nearest branch. Contact your service
provider.
If you forget the code, contact your service provider.
Contact your service provider.
New network not authorized.
Check for new restrictions.
Contact service provider or reset limit with PIN2.
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