Slide the locking flap in the direction of the arrow to unlock, and open the slot. Insert the new nano SIM card into the slot with the gold contacts facing down, making sure the cut-off corner is at the top right and then lower the flap of the SIM card slot. Slide the flap in the direction of the arrow to lock it.
To insert a microSD memory card, slide the Memory Card into the microSD card holder with the gold contacts facing down and the notched edge going in first. Gently push the card in until it snaps into place.