How to install the battery, SIM, and memory card (for applicable devices).
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INSTRUCTIONS & INFO
Remove the Back cover by lifting up from the indent in the cover.
Insert the Micro SIM card into the SIM card slot, making sure the gold contacts on the card are facing down and the notched corner is facing the slot.
Insert the microSD card into the microSD card slot, making sure the gold contacts on the card are facing down and toward the slot. Note: Memory cards are sold separately. To prevent data corruption, it is recommended to unmount your memory card before removing it. To unmount your memory card, tap Settings > More > Storage > Unmount SD Card.
Insert the Battery into the battery compartment, making sure to align the gold contacts on the battery with the contacts on the device.
Align the Back cover with the back of the device.
Press down firmly around the edges of the Back cover until it completely snaps into place.
When there is no SIM card in the device, the Missing SIM icon will display in the Notification bar.