Samsung SGH-T769 User Manual Ver.uvlb4_f7 (English(north America)) - Page 12

To replace the battery cover: 1. Position the battery cover over the battery compartment. 2. Align and insert the tabs along the top edge of the cover into their corresponding Cover slots (1) located at either sides of the rear camera area. 3. Press and snap the cover onto the device (2). Make sure to securely snap it down onto the device all the way around the battery cover. Cover slots SIM Card Overview Important!: Before removing or replacing the battery cover, make sure the phone is switched off. To turn the phone off, hold down the key until the power-off image displays, then tap Power off. The SIM card is loaded with your subscription details such as your telephone number, PIN, available optional services, and many other features. Important!: The SIM card and its information can be easily damaged by scratching or bending, so be careful when 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 be unlocked by using a new ISIM (IP Multimedia Services Identity Module) card. To use this new ISIM card, call or contact T-Mobile customer service for more information. This card contains the necessary information for identifying and authenticating the user to the IMS (IP Multimedia Subsystem). If available, you can remove the previous SIM and replace it with the new ISIM card. 8