Dell XPS 12 - Replacing the Base Cover; Base Cover Replacement Procedure

Inserting a micro-SIM card (optional)
1 Open the slot cover and locate the micro-SIM card slot.
CAUTION: Ensure that the micro-SIM card is aligned as shown in the
image.
2 Insert the micro-SIM card into the card slot until it locks into place.
3 Close the slot cover.
Setting up your tablet 12