Find your model number and serial number (IMEI)If you need to contact your care point or your service provider, you may needinfo, such as your phone's model number and serial number (IMEI). To see theinfo, on the start screen, swipe down from the top of the screen, and tap ALLSETTINGS > about > More info.Tip: To view your phone's IMEI number, dial *#06#.Product and safety infoNetwork services and costsYou can only use your device on the CDMA 800, CMDA1900, LTE 700, 1700/2100;WCDMA 850, 900, 1900, 2100; and GSM 850, 900, 1800, 1900 MHz networks.Support for LTE networks may have been disabled on your device depending onyour country or service provider. You need a subscription with a service provider.Using some features and downloading content require a network connection andmay result in data costs. You may also need to subscribe to some features.Important: 4G/LTE might not be supported by your network serviceprovider or by the service provider you are using when traveling. In thesecases, you may not be able to make or receive calls, send or receivemessages or use mobile data connections. To make sure your device worksseamlessly when full 4G/LTE service is not available, it is recommended thatyou change the highest connection speed from 4G to 3G. To do this, swipeleft on the start screen, and tap Settings > cellular+SIM. Switch Highestconnection speed to 3G.For more info, contact your network service provider.Make an emergency callImportant: Connections in all conditions cannot be guaranteed. Never relysolely on any wireless phone for essential communications like medicalemergencies.Before making the call:• Switch the phone on.• If the phone screen and keys are locked, unlock them.• Move to a place with adequate signal strength.1. Press , and tap > .© 2015 Microsoft Mobile. All rights reserved. 135