HTC Desire 20 pro User Manual page 11

11 Unboxing and setup
4. Do the following to place your nano SIM and microSD cards into the tray:
§ With the gold contacts facing down, place two nano SIM cards into the SIM 1 and SIM 2
holders of the tray. Make sure to align the cut-off corners to the notches on the holders.
§ When you need to use a microSD card, remove your second nano SIM card and then
place the microSD card into the outer holder of the tray. You cannot have both the
second nano SIM and microSD cards inserted at the same time.
5. When reinserting the tray, make sure it is facing up so that your cards don't fall out. With the
outer card holder between your fingers, steadily slide the tray all the way into the slot.
6. Make sure the tray is flush with the side of the phone.
Follow the same procedure above to eject the tray and remove your cards. Before ejecting the tray,
make sure to unmount your microSD card first. See
Both SIM 1 and SIM 2 cards can be 4G LTE
cards. To find out how to set the preferred
card for your mobile data connection, see
Changing your nano SIM card settings
page 15.
Unmounting the storage card
on
on page 68.