top of the screen, tap ALL SETTINGS > Wi-Fi, andswitch Wi-Fi networking to Off .• If you're listening to music or otherwise using yourphone, but don't want to make or receive calls, switchairplane mode on. On the start screen, swipe downfrom the top of the screen, tap ALL SETTINGS >airplane mode, and switch Status to On .Check battery useTo check which apps have been eating up your battery life, on the start screen, swipe down from thetop of the screen, and tap ALL SETTINGS > Battery Saver, and swipe to usage.Save on data roaming costsWant to save on your phone bills? You can cut data roaming costs by changing mobile data settings.Data roaming means using your phone to receive data over networks that your network serviceprovider doesn't own or operate. Connecting to the internet when roaming, especially when abroad,can raise data costs substantially. Your network service provider can charge you a fixed fee for datatransfer or on a pay-as-you-use basis. To use the optimal connection method, change the Wi-Fi,mobile data, and mail download settings.Using a Wi-Fi connection is generally faster and less expensive than using a mobile data connection.If both Wi-Fi and mobile data connections are available, your phone uses the Wi-Fi connection.On the start screen, swipe down from the top of the screen, and tap .1. Make sure Wi-Fi networking is switched to On .2. Select the connection you want to use.Close a mobile data connectionOn the start screen, swipe down from the top of the screen, tap ALL SETTINGS > cellular+SIM, andswitch Data connection to off .Tip: You can also follow your data usage with the data sense app.Stop data roamingOn the start screen, swipe down from the top of the screen, tap ALL SETTINGS > cellular+SIM, andswitch Data roaming options to don't roam.Tip: To save on data costs when traveling, save new maps to your phone before your journey,and browse the maps offline. If you’re running low on space, you can remove some maps fromyour phone.Download mail less frequentlyIn every mailbox you have, tap > settings > sync settings, and select how often to sync.Write textLearn how to write text quickly and efficiently with your phone’s keyboard.© 2014 Microsoft Mobile. All rights reserved. 33