Samsung SGH-T999MBBTMB - Manual (Page 16)

Installing and Removing the SIM card
This device uses a different type of SIM card called a “micro
SIM”. Other larger SIM cards will not function or fit within this
slot.
SIM Card Overview
Important! Before removing or replacing the micro SIM card,
make sure the device is switched off. To turn the
phone off, hold down the
until the Device
options pop up displays, then tap Power off.
The micro SIM card is loaded with your subscription details
such as your telephone number, PIN, available optional
services, and many other features.
Important! The micro 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 the new micro SIM card.
To use this new micro SIM 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).
To install the SIM card:
1. Carefully slide the micro SIM card into the SIM card
socket until it clicks into place.
Micro SIM card
2. Make sure that the card’s gold contacts face into the
device and that the upper-left angled corner of the card
is positioned as shown.
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