Sony Ericsson K750c Cell Phone User Manual


 
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91
Troubleshooting
Insert correct SIM card
Possible cause
: The phone is set to work only with
certain SIM cards.
Solution
: Check if you are using the correct
operator SIM card
for your phone.
Wrong PIN
/Wrong PIN2
Possible cause
: You have entered your PIN or
PIN2 incorrectly.
Solution
: Enter the correct PIN or PIN2
} Yes.
%
84 SIM card lock
.
PIN blocked
/PIN2 blocked
Possible cause
: You have entered your PIN or
PIN2 code incorrectly
three times in a row.
Solution
: To unblock,
%
84 SIM card lock.
Codes do not match
Possible cause
: The two codes that you have
entered do not match.
Solution
: When you want to ch
ange a security code
(for example your PIN) you
have to confirm the
new code by entering exactly the same code again.
%
84 SIM card lock.
No netw. coverage
Possible cause
: Your phone is
not receiving any
radio signal, or the recei
ved signal is too weak.
Solution
: Contact your network operator and make
sure that the network has
coverage where you are.
If so, try to do a new search.
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 mess
age, please
contact your ne
twork operator.
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 network operators allow you
to call the international emergency number 112.
Solution
: You have to move to get a signal that is
strong enough. Contact your
network operator and
make sure your subscription is ok.
%
26 Emergency
calls.