Samsung GT-I8150 User Manual page 11

To install the SIM or USIM card and battery,
1
If the device is on, press and hold [
off → OK to turn it off.
2
Remove the back cover.
Be careful not to damage your fingernails when you
remove the back cover.
3
Insert the SIM or USIM card with the gold-coloured
contacts facing down.
The antenna is located below the memory card slot. Do
not remove the protective tape covering the antenna,
as this can damage the antenna.
Assembling
11
] and select Power