Insert the SIM card
Follow the instructions carefully, to avoid damaging the back cover.
1 To open the back cover, slide it toward the top of the phone.
2 Insert a SIM card. Make sure the contact area of the card is facing up.
Push the card in, until it locks into place.
3 To replace the back cover, line up the locking catches and their slots, and slide
the cover toward the bottom of the phone.
To lock the cover into place, press the cover with two fingers, one above the
camera lens and flash and the other below the Nokia logo.