Samsung GT-I6410 User Manual page 12

To install the SIM or USIM card and battery,
1. Remove the battery cover.
If the device is on, press and hold [ ] to turn
it off.
6
2. Insert the SIM or USIM card.
• Place the SIM or USIM card in the device
with the gold-coloured contacts facing
down.
• Without inserting a SIM or USIM card, you
can use your device's non-network
services and some menus.