Troubleshooting
Message
SIM error
No network
Losing
network
Codes do
not match
Any
application
cannot be
set
70
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Possible causes
There is no SIM card in
the phone or it is inserted
incorrectly.
Signal is weak or you're
outside the carrier
network.
Operator applied new
services.
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.
Not supported by service
provider or 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.