Nokia Lumia 920 Manual page 29

Security code (lock This helps you protect
code, password) your phone against
unauthorized use.
(min. 4 digits)
You can set your
phone to ask for the
lock code that you
define.
Keep the code secret
and in a safe place,
separate from your
phone.
If you forget the code
and your phone is
locked, your phone will
require service.
Additional charges
may apply, and all the
personal data in your
phone may be deleted.
For more information,
contact Nokia Care or
your phone dealer.
IMEI This is used to identify
valid phones in the
network. The number
can also be used to
block, for example,
stolen phones. You
may also need to give
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