Sony Ericsson K790, User Manual

Page: 82 / 95

This is the Internet version of the user's guide. © Print only for private use.
82 Troubleshooting
No Netw. Coverage
Possible cause : Your phone is in flight
mode.
Solution : Restart the phone in normal
mode
%
7 Flight Mode Menu .
Possible cause : Your phone is not
receiving any radio signal, or the
received signal is too weak.
Solution : Contact your service provider
and make sure that the network has
coverage where you are. If so, search
for a network.
Possible cause : The SIM card is not
working properly.
Solution : Insert your SIM card in another
phone. If you still get the same or a
similar message, please contact your
service provider.
Possible cause : The phone is not
working properly.
Solution : Insert your SIM card in
another phone. If this works, it is
probably the phone that is causing
the problem. Please contact the
nearest Sony Ericsson service
location.
Emerg. Calls Only
Possible cause : You are within range
of a network, but you are not allowed
to use it. However, in an emergency,
some service providers allow you to
call the international emergency
number 112.
Solution : You have to move to get a
signal that is strong enough. Contact
your service provider and make sure
you have the right subscription
%
20 Emergency Calls .
Phone Lock
Possible cause : The phone is locked.
Solution : To unlock the phone
%
76 Phone Lock .
Phone lock code:
Possible cause : The phone lock code
is required.
Solution : Enter a phone lock code.
Your phone has a default phone
lock code 0000
%
76 Phone Lock .