Zte Blade 11 Prime User Manual page 14

CAUTION:
Never replace the included tray eject tool with other sharp
objects. Ensure that the tray eject tool is perpendicular to the
hole. Otherwise, the phone may be damaged.
2. Pull out the card tray and place a nano-SIM card and an optional
microSDXC card on the respective slots on the card tray, as
shown. Note the notch and shape of the cards and the card slots.
NOTE:
Some applications may require a microSDXC card to work
normally and/or may store data on the card. Therefore, it is
recommended that you keep a microSDXC card installed and not
remove or replace it randomly.
3. Carefully slide the tray back into place.
14