11SIM Card OverviewImportant! Before removing or replacing the SIM card, makesure the device is switched off. To turn the deviceoff, hold down the key until the Deviceoptions screen displays, then tap Power off.The SIM card is loaded with your subscription details such asyour telephone number, PIN, available optional services, andmany other features.Important! The SIM card and its information can be easilydamaged by scratching or bending, so be carefulwhen handling, inserting, or removing the card.Keep all SIM cards out of reach of small children.Some features on your device (such as Wi-Fi Calling) can beunlocked by using a new ISIM (IP Multimedia ServicesIdentity Module) card. To use this new ISIM card, call orcontact T-Mobile customer service for more information.This card contains the necessary information for identifyingand authenticating the user to the IMS (IP MultimediaSubsystem).If available, you can remove the previous SIM and replace itwith the new ISIM card.Installing and Removing the SIM cardTo install the SIM card:1. Carefully slide the SIM card into the SIM card socketuntil the card clicks into place.2. Make sure that the card’s gold contacts face into thedevice and that the upper-left angled corner of the cardis positioned as shown.CorrectIncorrect
