From the left edge of the device (display facing up), remove the card tray.
Utilize the insertion/removal tool (or a paperclip) to unlock the tray by inserting it into the provided slot (left) then remove the tray (right).
With the gold contacts facing down, insert the SD / memory card into the tray as shown.
Press in on the card to lock it into place.
Reinsert the card tray.
Press in on the tray to lock it into place.