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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 correct 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
Weak signal
outside of GSM
network area.
Operator applied
new services.
Move towards a window or into an
open area. Check the Network Operator
coverage map.
See if the SIM card is older than 6-12
months.
If so, change your SIM at the office of your
network provider.
Codes do not
match
To change a
security code,
you will need to
confirm the new
code by entering
it again.
The two codes you
have entered do
not match.
The default code is [0000]. 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
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