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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 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're outside the
carrier network.
Operator applied
new services.
Move towards a window or into an
open area. Check the network operator
coverage map.
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.
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