Nokia Lumia 810 User Guide - Page 104
This is used to identify valid phones in the, network. The number can also be used to block
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Security code (lock code, password) (min. 4 digits) IMEI If not supplied with your SIM card, contact your network service provider. This helps you protect your phone against unauthorized use. 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. 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 the number to Nokia Care services. To view your IMEI number, dial *#06#. The personal unblocking key (PUK) code and the universal personal unblocking key (UPUK) code (8 digits) are required to change a blocked PIN code and UPIN code, respectively. This code is not supplied with the SIM card. Contact your local service provider for the codes. © 2012 Nokia. All rights reserved. 104