Samsung SGH-T769NKBTMB - Manual (Page 12)

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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.
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.
Cover slots