T-Mobile is a global GSM carrier, which means that it uses subscriber identity module, known as SIM, cards in its phones to identify the phone to the network. T-Mobile SIM cards are specific to your mobile phone number. If you get a new T-Mobile phone, you simply transfer the SIM card into the new phone to transfer the phone number to it.
Instructions
1. Turn off your old T-Mobile phone. Remove the battery cover from the back of the phone. Remove the battery from the phone.
2. Slide the SIM card holder into the unlock position. Lift the metal flap up. Slide the SIM card out of the holder. Place the SIM card off to the side with the gold contacts facing up until you need it again.
3. Turn off the new T-Mobile phone and remove the battery panel and battery.
4. Slide the SIM card holder into the unlock position. Lift the metal flap up. Insert the SIM card into slot with the gold contacts facing down. Lower the metal flap over the SIM card. Slide the SIM card holder back into the lock position.
5. Place the battery back into the phone. Put the battery cover on.
Tags: card holder, Slide card, Slide card holder, metal flap, T-Mobile phone