Basics142 Insert the SIM or USIM card with the gold-coloured contacts facing downwards.Insert the primary SIM or USIM card into SIM card slot 1 ( 1 ) and the secondary SIM orUSIM card into SIM card slot 2 ( 2 ).12r Do not insert a memory card into the SIM card slot. If a memory card happens tobe lodged in the SIM card slot, take the device to a Samsung Service Centre toremove the memory card.r Use caution not to lose or let others use the SIM or USIM card. Samsung is notresponsible for any damages or inconveniences caused by lost or stolen cards.3 Replace the battery and back cover.Removing the SIM or USIM card1 Remove the back cover and battery.2 Pull out the SIM or USIM card.Except for CDMA