Samsung SGH-T749ZAATMB - Manual (Page 9)

Getting Started 6
4. Place your thumbnail in the notch at the top (1) and lift it up and out (2) (as shown).
5. Carefully slide the SIM card into the SIM card socket until the card locks into place. Make sure that the card’s
gold contacts face into the phone and that the upper-left angled corner of the card is positioned as shown.
Note: If the card is not inserted correctly, the phone does not detect the SIM card. Re-orient the card back into the slot.