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176 LG GD570 | User Guide
This section lists some problems that you might
encounter while using your phone. Some problems
require that you call your service provider, but most
of problems you encounter are easy to correct
yourself
Symptom Possible causes Possible corrective actions
Phone displays
“Insert SIM” error
message.
There is no SIM card
in the phone or you
may have inserted it
incorrectly.
Make sure that the SIM card is
correctly inserted.
No connection
to the network.
Signal is weak or
you’re outside of the
GSM network
Move to a window or open
space. Check service provider
coverage map.
Codes do not
match.
When you want to
change a security
code you have to
confirm the new
code by entering
it again. The two
codes that you have
entered do not
match.
Contact your Service Provider.
Function cannot
be set.
Not supported by
Service Provider or
registration required
Contact your Service Provider.
Calls not
available.
Dialing error or
service limitations
have been placed.
Check the number dialed.
Contact your service provider.
Troubleshooting