1. Remove the Back cover by gently lifting up from the slot.
   
2. With the metal contacts facing down, insert the Micro-SIM card into the SIM card slot.
   
3. Insert the microSD card into the microSD card slot, making sure the gold contacts are facing down.
   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 > Storage > Unmount SD Card.
   
4. Align the metal contacts and slide the Battery into the Battery slot.
   
5. Replace the Back cover and press firmly into place.
   
6. If a microSIM card is not in the device, the Missing SIM alert will be displayed on the screen.