Nokia Lumia Icon: Phone management & connectivity93Chapter 9Add a membership or loyalty card to WalletTap > other.Your phone searches for an app, available from your service provider,that can be linked to your card.Note:Payment and ticketing apps and services are provided bythird parties. Nokia does not provide any warranty or takeany responsibility for any such apps or services includingsupport, functionality, transactions, or loss of any monetaryvalue. You may need to reinstall and activate the paymentor ticketing app after repair of your device. You may need toreinstall and activate the cards you have added as well as thepayment or ticketing app after repair of your device.Access codesEver wondered what the different codes on your phone are for?PIN code(4-8 digits)This protects your SIM card against unauthorizeduse or is required to access some features.You can set your phone to ask for the PIN codewhen you turn it on.If you forget the code or it isn’t supplied withyour card, contact your network service provider.If you type in the code incorrectly 3 times in arow, you need to unblock the code with the PUKcode.PUK This is required to unblock a PIN code.If not supplied with your SIM card, contact yournetwork service provider.Security code(lock code,password)(min. 4 digits)This helps you protect your phone againstunauthorized use.You can set your phone to ask for the lock codethat you define. Keep the code secret and in asafe place, separate from your phone.If you forget the code and your phone is locked,your phone will require service. Additionalcharges may apply, and all the personal data onyour phone may be deleted.For more information, contact Nokia Care or yourphone dealer.IMEI This is used to identify phones in the network.You may also need to give the number to NokiaCare services.To view your IMEI number, dial *#06#.