LG -D956 Quick Start Manual page 52

Setup
Before you start using the phone, you need to insert the micro-USIM card.
Installing the micro-USIM card
Eject button aperture
NOTE: Make sure the gold contact area on the card is facing downwards.
2
The eject button is a small round aperture on the bottom of
the tray door.
1. Insert the micro-USIM ejection tool that comes with the
phone (or a thin pin) into the eject button aperture, and
push firmly but gently until the tray pops out.
2. Remove the tray and place the micro-USIM card inside it,
with the contacts out and the angled corner to the right.
There is only one possible way to fit the card snugly into
the tray.
3. Carefully reposition the tray in the slot and push it gently
back into the phone.