Samsung J1 SM-J120F - Manual (Page 14)

Basics
14
► Dual SIM models: 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 or
USIM card into SIM card slot 2 ( 2 ).
1
2
Use caution not to lose or let others use the SIM or USIM card. Samsung is not
responsible for any damages or inconveniences caused by lost or stolen cards.
3 Replace the battery and back cover.