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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 fix yourself.
Message
Possible causes
There is no SIM card
SIM error
in the phone or it is
inserted incorrectly.
Signal is weak or you
No network
're outside the carrier
connection/
network.
Losing
Operator applied new
network
services.
To change a security
code, you will need to
confirm the new code
Codes do not
by re-entering it.
match
The two codes you
have entered do not
match.
Any
Not supported by
application
service provider or
cannot be set
registration required.
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.
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.
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