Samsung t139 - Manual (Page 7)

Getting Started 3
Section 1: Getting Started
This section explains how to start using your phone by first
configuring your hardware, activating your service, and then
setting up your voice mail.
Activating Your Phone
When you subscribe to a cellular network, you are provided with
a plug-in SIM card loaded with your subscription details, such as
your PIN, available optional services, and many others features.
Installing the SIM Card
Important! The plug-in SIM card and its contacts 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.
If necessary, switch off the phone by pressing and holding
until the power-off image displays.
1. Slide the battery cover the direction of the arrow on the
cover (as indicated) until you hear a click sound.
2. Carefully lift the battery cover away from the bottom of the
phone.
3. Lift and remove the battery.