Samsung GT-S7550 User Manual(Extended Usage Guide) User Manual page 23

Do not use the
speaker hole to
remove the battery
cover. The speaker
may be damaged.
2. Insert the SIM or USIM card.
• Place the SIM or USIM card in the phone with
the gold-coloured contacts facing down.
• Without inserting a SIM or USIM card, you
can use your phone's non-network services
and some menus.
3. Insert the battery.
Speaker hole
4. Replace the battery cover.
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