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Troubleshooting
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
There is no USIM
card in the phone
USIM error
or it is inserted
incorrectly.
Weak Signal outside
No network
of GSM network area
connection/
Loosing
Operator applied new
network
services
To change a security
code, you will need
to confirm the new
Codes do
code by entering it
not match
again.
The two codes you
have entered do not
match.
Any
Not supported by
application
service provider or
cannot be
registration required
set
Possible Corrective Measures
Make sure that the SIM card is
correctly inserted.
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 month.
If so, change your SIM at the office
of your network provider.
The default code is [0000]. If you
forget the code, contact your service
provider.
Contact your service provider.
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