Sony Ericsson K750i User Manual
Page 76
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76
Troubleshooting
information” - “Getting started”. The guide
“Synchronizing the phone with a computer” contains
installation instructions and a troubleshooting guide,
that may assist you in solving the problem.
Master reset
The changes that you have made to settings and the
content that you have added or edited, will be deleted.
• If you select
Reset settings
, the changes that you
have made to settings will be deleted.
• If you select
Reset all
, in addition to your changes
to settings, all contacts, messages, personal data,
and content that you have downloaded, received
or edited will also be deleted.
To reset the phone
1 }
Settings
}
the
General
tab
}
Master reset
.
2 }
Reset settings
or
}
Reset all
.
3 }
Yes
to continue.
4
Enter the phone lock code (0000 or the new
code if you have changed it)
}
OK
.
Error messages
Insert SIM
Possible cause: There is no SIM card in the phone
or you may have inserted it incorrectly.
Solution: Insert a SIM card.
and battery.
Possible cause: The SIM card connectors need
cleaning.
Solution: Remove the SIM card and clean it. Also
check that the card is not damaged in a way that
may prevent connection to the phone connectors.
In that case, contact your network operator for a
new SIM card.
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
.
If you select
Reset all
,content such as melodies and
pictures that you have downloaded, received or edited
is also deleted.