From the top edge of the device (display facing up), remove the card tray.
Utilize the insertion/removal tool to unlock the tray by inserting it into the provided slot (figure 1) then remove the tray (figure 2).
Insert the SIM card into the tray.
Insert the SIM with the Verizon logo and SIM card number on top (gold contacts facing down and with the notched edge entered first).
Insert the card tray.
Press in on the tray to lock it into place.