Sony F500i - Manual (Page 76)

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More features
Phone lock
The phone lock protects the phone against
unauthorized use if it is stolen and the SIM card is
exchanged. The phone is not locked when you buy
it. You can change the phone lock code (0000) to
any four- to eight-digit personal code.
Phone lock on
If the phone lock is on, the message
Phone locked
appears each time you turn on the phone. Enter
your code followed by
Yes to use your phone.
Automatic phone lock
If the phone lock is set to automatic, you do not
need to enter your phone lock code until a different
SIM card is inserted in the phone.
To set the phone lock
1 } Settings } the General tab } Locks } Phone
lock } Protection and select an alternative.
2 Enter the phone lock code } OK .
To edit your phone lock code
} Settings } the General tab } Locks } Phone lock
} Change code .
Code memo
Instead of having to remember all the different
security codes for credit cards, for example, you
can save them in the code memo in your phone.
Then all you need to remember is the passcode to
open the code memo. You can save a maximum of
10 codes in the code memo.
Checkword and security
To confirm that you have entered the correct
passcode for the code memo and to prevent
unauthorized access to your codes, you must
enter a checkword.
When you enter your passcode to open the code
memo, the checkword is shown for a short time. If
the passcode is correct, the correct codes are shown.
If you enter the incorrect passcode, the checkword
and the codes that are shown are also incorrect.
Factors strengthening the security of the code
memo function are:
It is important that you remember your new code. If
you should forget it, you have to hand in your phone
to your local Sony Ericsson retailer.